/* -------------------------------------------------------------
   SYSTEM DESIGN SYSTEM & THEMES
   ------------------------------------------------------------- */
:root {
    /* Fonts */
    --font-main: 'Outfit', sans-serif;

    /* Transition speeds */
    --trans-fast: 0.15s ease;
    --trans-normal: 0.25s ease;
    --trans-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
    --bg-app: #070a13;
    --bg-workspace: #0b1120;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-card-hover: rgba(17, 24, 39, 0.9);
    --bg-input: #1e293b;
    --bg-sidebar: #0f172a;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-focus: #38bdf8;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-blue: #38bdf8;
    --accent-blue-gradient: linear-gradient(135deg, #0284c7, #38bdf8);
    --accent-green: #34d399;
    --accent-orange: #e04307;
    --accent-red: #ef4444;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
    
    --glass-blur: 16px;
    --card-glow: 0 0 15px rgba(56, 189, 248, 0.05);
}

[data-theme="light"] {
    --bg-app: #f1f5f9;
    --bg-workspace: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --bg-input: #ffffff;
    --bg-sidebar: #e2e8f0;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-focus: #0284c7;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --accent-blue: #0284c7;
    --accent-blue-gradient: linear-gradient(135deg, #0369a1, #0284c7);
    --accent-green: #059669;
    --accent-orange: #e04307;
    --accent-red: #dc2626;
    
    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.1);
    
    --glass-blur: 10px;
    --card-glow: 0 0 15px rgba(2, 132, 199, 0.03);
}

/* -------------------------------------------------------------
   BASE RESET & RESETTING SCROLLBARS
   ------------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-app);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--trans-normal), color var(--trans-normal);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-app);
}
::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* -------------------------------------------------------------
   APP CONTAINERS & LAYOUT
   ------------------------------------------------------------- */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 1600px;
    margin: 0 auto;
    background-color: var(--bg-workspace);
    position: relative;
}

/* -------------------------------------------------------------
   HEADER
   ------------------------------------------------------------- */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background-color: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--accent-blue-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 20px;
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
    animation: pulse-glow 3s infinite ease-in-out;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3); }
    50% { box-shadow: 0 4px 20px rgba(56, 189, 248, 0.6); }
}

.logo-area h1 {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: 0.5px;
}

.logo-area .subtitle {
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 400;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* -------------------------------------------------------------
   WORKSPACE PANELS
   ------------------------------------------------------------- */
.workspace {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 20px 0;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 0 15px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 14px 18px;
    background: transparent;
    border: none;
    border-radius: 10px;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: all var(--trans-fast);
}

.nav-item:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.04);
}

.nav-item.active {
    color: #ffffff;
    background: var(--accent-blue-gradient);
    box-shadow: 0 4px 15px rgba(2, 132, 199, 0.25);
}

.nav-item i {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 0 25px;
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Central Content Panel */
.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

/* Results Sidebar (Right) */
.results-panel {
    width: 380px;
    background-color: var(--bg-sidebar);
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
    padding: 30px 20px;
}

.results-sticky {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.results-header h2 {
    font-size: 16px;
    font-weight: 600;
}

.status-indicator {
    font-size: 10px;
    padding: 4px 8px;
    border-radius: 20px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.status-indicator.live {
    background-color: rgba(52, 211, 153, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(52, 211, 153, 0.2);
    animation: flash 2s infinite;
}

@keyframes flash {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* -------------------------------------------------------------
   CARDS & CONTAINERS
   ------------------------------------------------------------- */
.section-card {
    background-color: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 25px;
    box-shadow: var(--shadow-md);
    transition: transform var(--trans-normal), box-shadow var(--trans-normal), background-color var(--trans-normal);
    position: relative;
    overflow: hidden;
}

.section-card:hover {
    background-color: var(--bg-card-hover);
    box-shadow: var(--shadow-lg), var(--card-glow);
}

.section-card h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.icon-accent {
    color: var(--accent-orange);
}

.card-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.4;
}

/* -------------------------------------------------------------
   FORMS & INPUTS
   ------------------------------------------------------------- */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 18px;
    justify-content: flex-end;
}

.form-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-height: 28px;
    display: flex;
    align-items: flex-start;
    line-height: 1.2;
}

input[type="number"], input[type="text"], input[type="date"], select, textarea {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 10px 18px;
    height: 44px;
    box-sizing: border-box;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 14px;
    outline: none;
    transition: border-color var(--trans-fast), box-shadow var(--trans-fast);
    width: 100%;
}

input[type="number"]:focus, input[type="text"]:focus, input[type="date"]:focus, select:focus, textarea:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

/* Inputs with Units integrated inside */
.input-with-unit {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-unit input {
    padding-right: 70px;
}

.input-with-unit .unit {
    position: absolute;
    right: 14px;
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
    pointer-events: none;
}

.input-with-unit select.unit-select,
select.unit-select-pill {
    position: absolute;
    right: 8px;
    width: auto;
    height: 30px;
    padding: 2px 24px 2px 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-blue);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    cursor: pointer;
    outline: none;
    transition: all var(--trans-fast);
}

select.unit-select-pill {
    position: static !important;
    height: 24px;
    padding: 1px 22px 1px 8px;
    font-size: 11px;
    margin: 0;
}

.input-with-unit select.unit-select:hover,
select.unit-select-pill:hover {
    border-color: var(--border-focus);
    background-color: rgba(56, 189, 248, 0.08);
}

.display-value {
    background-color: rgba(56, 189, 248, 0.05);
    border: 1px solid rgba(56, 189, 248, 0.1);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 16px;
    font-weight: 600;
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    min-height: 41px;
}

/* Custom range inputs */
.input-range-container {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: linear-gradient(to right, #0284c7 0%, #0284c7 var(--value-percent, 50%), #334155 var(--value-percent, 50%), #334155 100%);
    outline: none;
    margin: 12px 0;
    cursor: pointer;
    transition: background 0.05s ease, transform var(--trans-fast);
}

input[type="range"]::-webkit-slider-runnable-track {
    background: transparent;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-blue);
    border: 2px solid var(--bg-input);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    transition: transform var(--trans-fast), background-color var(--trans-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.25);
}

.range-values {
    display: flex;
    justify-content: flex-end;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-blue);
}

/* Grid helper utilities */
.grid-2-cols {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-3-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.grid-4-cols {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.grid-4-cols-compact {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.col-span-2 {
    grid-column: span 2;
}

.margin-top {
    margin-top: 15px;
}

.flex-align-end {
    display: flex;
    align-items: flex-end;
    padding-bottom: 5px;
}

/* Checkbox */
.checkbox-container {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    font-weight: 500 !important;
}

.checkbox-container input {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* -------------------------------------------------------------
   WALL CONFIG CARDS (GRID OF 6 CARDS)
   ------------------------------------------------------------- */
.walls-config-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.wall-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 18px;
    transition: all var(--trans-normal);
}

.wall-card:hover {
    border-color: rgba(56, 189, 248, 0.2);
    background-color: rgba(255, 255, 255, 0.04);
}

.wall-card.highlight-wall {
    background-color: rgba(56, 189, 248, 0.02);
    border-color: rgba(56, 189, 248, 0.15);
}

.wall-card.highlight-wall:hover {
    border-color: var(--accent-blue);
}

.wall-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.wall-header h3 {
    font-size: 14px;
    font-weight: 600;
}

.wall-area-label {
    font-size: 11px;
    font-weight: 600;
    background-color: var(--bg-input);
    padding: 3px 8px;
    border-radius: 12px;
    color: var(--text-secondary);
}

.grid-2-cols-compact {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.input-with-unit-compact {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.input-with-unit-compact input {
    padding: 8px 10px;
    padding-right: 68px;
    font-size: 13px;
    width: 100%;
    box-sizing: border-box;
}

.input-with-unit-compact .unit {
    position: absolute;
    right: 8px;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    pointer-events: none;
    white-space: nowrap;
}

/* -------------------------------------------------------------
   PRODUCTS MANAGER MODULE
   ------------------------------------------------------------- */
.product-adder-box {
    background-color: rgba(255, 255, 255, 0.015);
    border: 1px dashed var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 25px;
}

.product-adder-box > .grid-4-cols {
    display: grid;
    grid-template-columns: 1.0fr 1.35fr 0.95fr 1.0fr;
    gap: 12px;
}

@media (max-width: 1200px) {
    .product-adder-box > .grid-4-cols {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .product-adder-box > .grid-4-cols {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

.product-adder-box .grid-4-cols .form-group label {
    min-height: 28px;
    display: flex;
    align-items: flex-end;
    word-break: break-word;
    font-size: 13px;
}

.product-adder-box select#prod-select {
    width: 100%;
    text-overflow: ellipsis;
}

.input-with-unit input#prod-mass {
    padding-right: 85px;
}

.input-with-unit input#prod-temp-in {
    padding-right: 45px;
}

.input-with-unit select.unit-select {
    position: absolute;
    right: 22px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    outline: none;
    cursor: pointer;
    padding: 4px 18px 4px 4px;
    width: auto;
    height: auto;
    border-radius: 0;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 10 6'><path fill='%2364748b' d='M0 0l5 6 5-6z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 4px center;
}

.product-adder-box h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--accent-blue);
}

.hidden-params {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--trans-slow);
}

.hidden-params.show {
    max-height: 250px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.info-bubble.hidden-params:not(.show) {
    display: none !important;
}

.action-row {
    display: flex;
    justify-content: flex-end;
    margin-top: 15px;
}

/* Products Table */
.product-list-container h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}

.table-responsive {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: 10px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

.data-table th, .data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: var(--bg-sidebar);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.01);
}

.empty-row-msg {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
}

/* -------------------------------------------------------------
   INTERNAL LOADS CARDS
   ------------------------------------------------------------- */
.internal-sub-card {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 10px;
}

.internal-sub-card h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.internal-sub-card h3 i {
    color: var(--accent-blue);
}

.info-bubble {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background-color: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.1);
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 15px;
    line-height: 1.4;
}

.info-bubble i {
    color: var(--accent-blue);
    margin-top: 2px;
}

/* -------------------------------------------------------------
   RIGHT SIDEBAR: RESULTS & REAL-TIME SUMMARY
   ------------------------------------------------------------- */
.main-output-card {
    background: linear-gradient(135deg, rgba(2, 132, 199, 0.1), rgba(56, 189, 248, 0.15));
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 14px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(56, 189, 248, 0.05);
}

.output-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-blue);
    font-weight: 700;
    margin-bottom: 6px;
}

.output-number {
    font-size: 32px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 15px;
    text-shadow: 0 2px 10px rgba(2, 132, 199, 0.3);
}

[data-theme="light"] .output-number {
    color: var(--accent-blue);
    text-shadow: none;
}

.output-sub-units {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 12px;
}

[data-theme="light"] .output-sub-units {
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.sub-unit-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sub-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Chart Container */
.chart-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 20px;
}

.chart-card h3 {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 15px;
}

.chart-wrapper {
    height: 200px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Detail numbers */
.summary-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    padding: 8px 10px;
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.01);
}

.detail-row span {
    color: var(--text-secondary);
}

.detail-row strong {
    color: var(--text-primary);
}

/* -------------------------------------------------------------
   BUTTONS
   ------------------------------------------------------------- */
.btn-primary {
    background: var(--accent-blue-gradient);
    border: none;
    border-radius: 8px;
    color: #ffffff;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.2);
    transition: all var(--trans-fast);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(2, 132, 199, 0.35);
}

.btn-success {
    background: linear-gradient(135deg, #059669, #34d399);
    border: none;
    border-radius: 8px;
    color: #ffffff;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.2);
    transition: all var(--trans-fast);
}

.btn-success:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(5, 150, 105, 0.35);
}

.btn-secondary {
    background-color: rgba(56, 189, 248, 0.1);
    color: var(--accent-blue);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all var(--trans-fast);
}

.btn-secondary:hover {
    background-color: rgba(56, 189, 248, 0.2);
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    transition: all var(--trans-fast);
}

.btn-icon:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

.btn-danger {
    background: transparent;
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 6px;
    padding: 5px 10px;
    cursor: pointer;
    transition: all var(--trans-fast);
    font-family: var(--font-main);
    font-size: 12px;
}

.btn-danger:hover {
    background-color: rgba(239, 68, 68, 0.1);
}

.btn-danger-outline {
    background: transparent;
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--trans-fast);
}

.btn-danger-outline:hover {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: var(--accent-red);
    transform: translateY(-1px);
}

.btn-info-outline {
    background: transparent;
    color: #0284c7;
    border: 1px solid rgba(2, 132, 199, 0.35);
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--trans-fast);
}

.btn-info-outline:hover {
    background-color: rgba(2, 132, 199, 0.1);
    border-color: #0284c7;
    color: #0284c7;
    transform: translateY(-1px);
}

/* ==========================================================================
   BOTONES DE ACCIONES PRINCIPALES DEL HEADER
   ========================================================================== */
.btn-header-action {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    height: 36px !important;
    padding: 0 14px !important;
    font-family: var(--font-main, 'Inter', sans-serif) !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    line-height: 1 !important;
    border-radius: 8px !important;
    cursor: pointer !important;
    box-sizing: border-box !important;
    white-space: nowrap !important;
    text-decoration: none !important;
    user-select: none !important;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
    outline: none !important;
}

.btn-header-action i {
    font-size: 13px !important;
}

.btn-header-action:focus-visible,
.btn-header-more:focus-visible {
    outline: 2px solid #0284c7 !important;
    outline-offset: 2px !important;
}

/* 1. ABRIR PROYECTO */
.btn-header-open {
    background-color: #ffffff !important;
    border: 1.5px solid #38bdf8 !important;
    color: #0284c7 !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04) !important;
}
.btn-header-open i {
    color: #0284c7 !important;
}
.btn-header-open:hover {
    background-color: #f0f9ff !important;
    border-color: #0284c7 !important;
    color: #0284c7 !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 2px 5px rgba(2, 132, 199, 0.15) !important;
}
.btn-header-open:active {
    transform: translateY(0) !important;
    background-color: #e0f2fe !important;
}

/* 2. GUARDAR PROYECTO */
.btn-header-save {
    background-color: #0284c7 !important;
    border: 1.5px solid #0284c7 !important;
    color: #ffffff !important;
    box-shadow: 0 1px 3px rgba(2, 132, 199, 0.3) !important;
}
.btn-header-save i {
    color: #ffffff !important;
}
.btn-header-save:hover {
    background-color: #0369a1 !important;
    border-color: #0369a1 !important;
    color: #ffffff !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 3px 8px rgba(2, 132, 199, 0.4) !important;
}
.btn-header-save:active {
    transform: translateY(0) !important;
    background-color: #075985 !important;
    border-color: #075985 !important;
}

/* 3. NUEVA CONSULTA */
.btn-header-reset {
    background-color: #ffffff !important;
    border: 1.5px solid #f87171 !important;
    color: #ef4444 !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04) !important;
}
.btn-header-reset i {
    color: #ef4444 !important;
}
.btn-header-reset:hover {
    background-color: #fef2f2 !important;
    border-color: #dc2626 !important;
    color: #dc2626 !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 2px 5px rgba(239, 68, 68, 0.15) !important;
}
.btn-header-reset:active {
    transform: translateY(0) !important;
    background-color: #fee2e2 !important;
}

/* 4. MENÚ DE TRES PUNTOS */
.header-more-wrapper {
    position: relative !important;
    display: inline-flex !important;
    align-items: center !important;
}

.btn-header-more {
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    min-height: 36px !important;
    border-radius: 50% !important;
    background-color: #f1f5f9 !important;
    border: 1px solid #e2e8f0 !important;
    color: #334155 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 0 !important;
    cursor: pointer !important;
    box-sizing: border-box !important;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
    outline: none !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04) !important;
}

.btn-header-more i {
    color: #334155 !important;
    font-size: 14px !important;
}

.btn-header-more:hover {
    background-color: #e2e8f0 !important;
    border-color: #cbd5e1 !important;
    color: #0f172a !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08) !important;
}

.btn-header-more:active {
    transform: translateY(0) !important;
    background-color: #cbd5e1 !important;
}

/* DROPDOWN MENU DE MÁS OPCIONES */
.header-dropdown-menu {
    position: absolute !important;
    top: calc(100% + 8px) !important;
    right: 0 !important;
    min-width: 220px !important;
    background-color: #ffffff !important;
    border: 1px solid #e2e8f0 !important;
    border-radius: 12px !important;
    box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.08) !important;
    padding: 6px !important;
    z-index: 1000 !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 2px !important;
    box-sizing: border-box !important;
    animation: headerMenuFadeIn 0.15s ease-out !important;
}

.header-dropdown-menu.hidden {
    display: none !important;
}

@keyframes headerMenuFadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.header-menu-item-btn {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    width: 100% !important;
    padding: 8px 12px !important;
    font-family: var(--font-main, 'Inter', sans-serif) !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    color: #334155 !important;
    background: transparent !important;
    border: none !important;
    border-radius: 8px !important;
    cursor: pointer !important;
    text-align: left !important;
    box-sizing: border-box !important;
    transition: all 0.15s ease !important;
    line-height: 1.3 !important;
}

.header-menu-item-btn i {
    width: 18px !important;
    text-align: center !important;
    font-size: 14px !important;
    color: #64748b !important;
    transition: color 0.15s ease !important;
}

.header-menu-item-btn:hover {
    background-color: #f1f5f9 !important;
    color: #0284c7 !important;
}

.header-menu-item-btn:hover i {
    color: #0284c7 !important;
}

.header-menu-item-btn:focus-visible {
    outline: 2px solid #0284c7 !important;
    outline-offset: -1px !important;
}

.header-menu-lang-row {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 6px 10px !important;
    font-family: var(--font-main, 'Inter', sans-serif) !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    color: #334155 !important;
}

.header-menu-label {
    display: inline-flex !important;
    align-items: center !important;
    gap: 10px !important;
    color: #334155 !important;
}

.header-menu-label i {
    width: 18px !important;
    text-align: center !important;
    font-size: 14px !important;
    color: #64748b !important;
}

.header-menu-lang-selector {
    display: inline-flex !important;
    gap: 3px !important;
    background: #f1f5f9 !important;
    padding: 3px !important;
    border-radius: 6px !important;
}

.header-menu-lang-selector .lang-btn {
    border: none !important;
    background: transparent !important;
    color: #64748b !important;
    font-size: 11.5px !important;
    font-weight: 700 !important;
    padding: 3px 8px !important;
    border-radius: 4px !important;
    cursor: pointer !important;
    transition: all 0.15s ease !important;
}

.header-menu-lang-selector .lang-btn.active {
    background: #0284c7 !important;
    color: #ffffff !important;
    box-shadow: 0 1px 2px rgba(2, 132, 199, 0.3) !important;
}

.header-menu-divider {
    height: 1px !important;
    background-color: #e2e8f0 !important;
    margin: 4px 6px !important;
}

/* Modo oscuro */
body.dark-mode .btn-header-open {
    background-color: #1e293b !important;
    border-color: rgba(56, 189, 248, 0.45) !important;
    color: #38bdf8 !important;
}
body.dark-mode .btn-header-open i {
    color: #38bdf8 !important;
}
body.dark-mode .btn-header-open:hover {
    background-color: rgba(56, 189, 248, 0.15) !important;
    border-color: #38bdf8 !important;
    color: #38bdf8 !important;
}

body.dark-mode .btn-header-reset {
    background-color: #1e293b !important;
    border-color: rgba(248, 113, 113, 0.45) !important;
    color: #f87171 !important;
}
body.dark-mode .btn-header-reset i {
    color: #f87171 !important;
}
body.dark-mode .btn-header-reset:hover {
    background-color: rgba(239, 68, 68, 0.15) !important;
    border-color: #f87171 !important;
    color: #fca5a5 !important;
}

body.dark-mode .btn-header-more {
    background-color: #1e293b !important;
    border-color: #334155 !important;
    color: #94a3b8 !important;
}
body.dark-mode .btn-header-more i {
    color: #cbd5e1 !important;
}
body.dark-mode .btn-header-more:hover {
    background-color: #334155 !important;
    color: #ffffff !important;
}

body.dark-mode .header-dropdown-menu {
    background-color: #1e293b !important;
    border-color: #334155 !important;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3) !important;
}

body.dark-mode .header-menu-item-btn {
    color: #cbd5e1 !important;
}
body.dark-mode .header-menu-item-btn i {
    color: #94a3b8 !important;
}
body.dark-mode .header-menu-item-btn:hover {
    background-color: #334155 !important;
    color: #38bdf8 !important;
}
body.dark-mode .header-menu-item-btn:hover i {
    color: #38bdf8 !important;
}

body.dark-mode .header-menu-lang-row,
body.dark-mode .header-menu-label {
    color: #cbd5e1 !important;
}
body.dark-mode .header-menu-label i {
    color: #94a3b8 !important;
}

body.dark-mode .header-menu-lang-selector {
    background: #0f172a !important;
}
body.dark-mode .header-menu-lang-selector .lang-btn {
    color: #94a3b8 !important;
}
body.dark-mode .header-menu-lang-selector .lang-btn.active {
    background: #0284c7 !important;
    color: #ffffff !important;
}

body.dark-mode .header-menu-divider {
    background-color: #334155 !important;
}

body.dark-mode .btn-info-outline {
    color: #38bdf8 !important;
    border-color: rgba(56, 189, 248, 0.35) !important;
}

body.dark-mode .btn-info-outline:hover {
    background-color: rgba(56, 189, 248, 0.15) !important;
    border-color: #38bdf8 !important;
    color: #38bdf8 !important;
}

/* Tab Management helper */
.tab-content {
    display: none;
    animation: fade-in 0.3s ease;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

@keyframes fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* -------------------------------------------------------------
   PRINT MEDIA RULES (EXEC REPORT IN PDF)
   ------------------------------------------------------------- */
.print-only:not(.active-print-target) {
    display: none !important;
}

body.printing-in-progress .app-container {
    display: none !important;
}

body.printing-in-progress .print-only.active-print-target {
    display: block !important;
    visibility: visible !important;
    position: static !important;
    width: 100% !important;
    height: auto !important;
    overflow: visible !important;
    background-color: #ffffff !important;
    color: #0f172a !important;
}

@media print {
    /* Ocultar interfaz principal de la app */
    .app-container {
        display: none !important;
        height: 0 !important;
        overflow: hidden !important;
    }

    /* Ocultar plantillas de impresión por defecto */
    .print-only {
        display: none !important;
        visibility: hidden !important;
    }

    body.print-mode-commercial #print-calculation-container,
    body.print-mode-commercial #print-diagram-container,
    body.print-mode-calculation #print-commercial-container,
    body.print-mode-calculation #print-diagram-container {
        display: none !important;
        visibility: hidden !important;
        height: 0 !important;
    }

    /* Mostrar únicamente el contenedor activo */
    body.print-mode-commercial #print-commercial-container,
    body.print-mode-calculation #print-calculation-container,
    body.print-mode-diagram #print-diagram-container,
    .print-only.active-print-target {
        display: block !important;
        visibility: visible !important;
        position: static !important;
        top: auto !important;
        left: auto !important;
        width: 100% !important;
        height: auto !important;
        overflow: visible !important;
        background-color: #ffffff !important;
        color: #0f172a !important;
        z-index: 99999 !important;
    }
    
    .print-only.active-print-target *,
    body.print-mode-commercial #print-commercial-container *,
    body.print-mode-calculation #print-calculation-container *,
    body.print-mode-diagram #print-diagram-container * {
        visibility: visible !important;
        color: #0f172a !important;
    }
    
    /* Reset layout structures inside print view */
    table.print-document-table {
        width: 100% !important;
        border-collapse: collapse !important;
        border: none !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    table.print-document-table > thead {
        display: table-header-group !important;
    }
    table.print-document-table > tbody {
        display: table-row-group !important;
    }
    table.print-document-table > thead > tr > td,
    table.print-document-table > tbody > tr > td {
        border: none !important;
        padding: 0 !important;
        vertical-align: top !important;
    }
    .print-only.active-print-target table,
    body.print-mode-commercial #print-commercial-container table,
    body.print-mode-calculation #print-calculation-container table {
        display: table !important;
        width: 100% !important;
        border-collapse: collapse !important;
    }
    .print-only.active-print-target tr,
    body.print-mode-commercial #print-commercial-container tr,
    body.print-mode-calculation #print-calculation-container tr {
        display: table-row !important;
    }
    .print-only.active-print-target th,
    .print-only.active-print-target td,
    body.print-mode-commercial #print-commercial-container th,
    body.print-mode-commercial #print-commercial-container td,
    body.print-mode-calculation #print-calculation-container th,
    body.print-mode-calculation #print-calculation-container td {
        display: table-cell !important;
        color: #0f172a !important;
    }
    .print-only.active-print-target .print-header,
    body.print-mode-commercial #print-commercial-container .print-header,
    body.print-mode-calculation #print-calculation-container .print-header {
        display: flex !important;
    }
    .print-only.active-print-target .print-results-box,
    body.print-mode-commercial #print-commercial-container .print-results-box,
    body.print-mode-calculation #print-calculation-container .print-results-box {
        display: grid !important;
    }
    
    .print-only {
        position: static !important;
        left: auto !important;
        top: auto !important;
        width: 100%;
        font-family: 'Helvetica Neue', Arial, sans-serif;
        color: #0f172a !important;
        background-color: #ffffff !important;
        padding: 0;
    }

    h1, h2, h3, h4, h5, h6, .print-subheading {
        page-break-after: avoid !important;
        break-after: avoid !important;
    }

    table,
    tr,
    .print-table,
    .print-justification-box,
    .print-exclusions-box,
    .print-header,
    .print-meta-fields,
    .print-section-block {
        page-break-inside: avoid !important;
        break-inside: avoid !important;
    }

    .print-table th,
    .print-table td {
        padding: 4px 6px !important;
        font-size: 10px !important;
        line-height: 1.2 !important;
    }

    #print-comm-quote-rows tr td {
        padding: 3px 5px !important;
        font-size: 9.5px !important;
        line-height: 1.2 !important;
    }

    /* Marca de Agua en todas las páginas del PDF (Superpuesta arriba del texto - 50% más grande) */
    .print-watermark-bg {
        display: flex !important;
        position: fixed !important;
        top: 50% !important;
        left: 50% !important;
        transform: translate(-50%, -50%) !important;
        width: 780px !important;
        max-width: 95% !important;
        height: auto !important;
        z-index: 9999 !important; /* Arriba del texto */
        pointer-events: none !important;
        align-items: center !important;
        justify-content: center !important;
        opacity: 0.18 !important;
    }
    .print-watermark-bg img {
        width: 100% !important;
        height: auto !important;
        object-fit: contain !important;
        display: block !important;
    }

    .print-page-body {
        position: relative !important;
        z-index: 1;
    }

    .print-header {
        display: flex !important;
        justify-content: space-between;
        align-items: center;
        border-bottom: 2px solid #1e3a8a;
        padding-bottom: 12px;
        margin-bottom: 20px;
    }

    .print-logo {
        font-size: 20px;
        font-weight: 700;
        color: #1e3a8a;
        display: flex !important;
        align-items: center;
        gap: 8px;
    }

    .print-title-box {
        text-align: right;
    }

    .print-title-box h1 {
        font-size: 18px;
        font-weight: 700;
        margin: 0;
        color: #111111;
    }

    .print-title-box p {
        font-size: 11px;
        color: #555555;
        margin-top: 4px;
    }

    .print-meta-fields {
        margin-bottom: 20px;
    }

    .print-meta-row {
        display: flex !important;
        justify-content: space-between;
        margin-bottom: 8px;
        font-size: 12px;
    }

    .meta-field {
        width: 48%;
        border-bottom: 1px dotted #ccc;
        padding-bottom: 4px;
    }

    .editable-print-text {
        border-bottom: none;
        outline: none;
    }

    .print-divider {
        border: 0;
        border-top: 1px solid #ddd;
        margin: 20px 0;
    }

    .print-only h2, .print-only h3 {
        font-size: 13px;
        font-weight: 700;
        background-color: #f3f4f6;
        padding: 6px 10px;
        margin-top: 20px;
        margin-bottom: 10px;
        border-left: none !important;
        padding-left: 0 !important;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    .print-table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
        font-size: 11px;
    }

    .print-table td, .print-table th {
        padding: 8px 10px;
        border-bottom: 1px solid #e5e7eb;
        text-align: left;
    }

    .print-table th {
        background-color: #f9fafb;
        font-weight: 700;
        border-bottom: 2px solid #d1d5db;
    }

    .table-total-row td {
        font-weight: 700;
        border-top: 2.5px double #111;
        border-bottom: 1px solid #111;
    }

    .table-total-row.highlight-row td {
        background-color: #f3f4f6;
        color: #1e3a8a;
    }

    .text-right {
        text-align: right !important;
    }

    .font-small {
        font-size: 10px;
    }

    .print-results-box {
        display: grid !important;
        grid-template-columns: repeat(4, 1fr);
        gap: 15px;
        margin: 15px 0;
    }

    .print-result-item {
        background-color: #f8fafc;
        border: 1px solid #e2e8f0;
        border-radius: 6px;
        padding: 10px;
        text-align: center;
    }

    .print-result-label {
        font-size: 9px;
        text-transform: uppercase;
        color: #64748b;
        font-weight: 600;
        display: block;
        margin-bottom: 4px;
    }

    .print-result-val {
        font-size: 16px;
        font-weight: 700;
        color: #0f172a;
    }

    .print-result-val.text-primary {
        color: #1e3a8a;
        font-size: 18px;
    }

    .print-footer {
        margin-top: 40px;
        border-top: 1px solid #ddd;
        padding-top: 10px;
        font-size: 9px;
        color: #666;
        text-align: center;
        line-height: 1.4;
    }

    /* Page break adjustments */
    h2, table {
        page-break-inside: avoid;
    }
}

/* -------------------------------------------------------------
   RESPONSIVE DESIGN SYSTEM
   ------------------------------------------------------------- */
@media (max-width: 1200px) {
    .workspace {
        flex-direction: column;
        overflow-y: auto;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 10px 0;
    }
    
    .nav-menu {
        flex-direction: row;
        overflow-x: auto;
        padding: 5px 15px;
        gap: 10px;
    }
    
    .nav-item {
        white-space: nowrap;
        padding: 10px 15px;
    }
    
    .sidebar-footer {
        display: none;
    }
    
    .results-panel {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding: 30px;
    }
    
    .results-sticky {
        flex-direction: column;
    }

    .grid-4-cols {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-2-cols, .grid-3-cols, .grid-4-cols, .walls-config-grid {
        grid-template-columns: 1fr;
    }
    
    .col-span-2 {
        grid-column: span 1;
    }
    
    .grid-4-cols-compact {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .content-area {
        padding: 15px;
    }
    
    .main-header {
        padding: 10px 15px;
    }
}

/* Quote inputs styling */
.quote-qty-input, .quote-price-input, .quote-disc-input {
    background-color: var(--bg-workspace) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 4px !important;
    color: var(--text-primary) !important;
    text-align: center;
    font-family: var(--font-main);
    font-size: 13px;
    outline: none;
    transition: border-color var(--trans-fast);
}

.quote-qty-input:focus, .quote-price-input:focus, .quote-disc-input:focus {
    border-color: var(--accent-blue) !important;
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.15);
}

/* Compact button styles for snapshots list */
.btn-primary-compact, .btn-success-compact, .btn-danger-compact {
    border: none;
    border-radius: 6px;
    font-weight: 600;
    color: #ffffff !important;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 4px 8px;
    font-size: 11px;
    font-family: var(--font-main);
    display: inline-block;
    text-align: center;
    outline: none;
    box-shadow: var(--shadow-sm);
}

.btn-primary-compact {
    background: var(--accent-blue) !important;
}
.btn-primary-compact:hover {
    filter: brightness(1.1);
}

.btn-success-compact {
    background: var(--accent-green, #10b981) !important;
}
.btn-success-compact:hover {
    filter: brightness(1.1);
}

.btn-danger-compact {
    background: var(--accent-red, #ef4444) !important;
}
.btn-danger-compact:hover {
    filter: brightness(1.1);
}

/* Ocultar contenedores de impresión en pantalla normal */
.print-only, #print-commercial-container, #print-calculation-container, #print-technical-container, #print-diagram-container {
    display: none !important;
}

@media print {
    /* Resetear body para impresion nativa */
    body {
        background: #ffffff !important;
        color: #0f172a !important;
        margin: 0 !important;
        padding: 0 !important;
        height: auto !important;
        min-height: auto !important;
        overflow: visible !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    /* Ocultar toda la interfaz de la app durante la impresión nativa */
    body > *:not(.active-print-target) {
        display: none !important;
    }
    .app-header, .app-container, .sidebar, .tab-navigation, .app-footer, button, .sku-pill-badge, .dashboard-grid, .section-card, aside {
        display: none !important;
    }

    .active-print-target,
    .print-only.active-print-target,
    #print-commercial-container.active-print-target,
    #print-calculation-container.active-print-target,
    #print-technical-container.active-print-target,
    #print-diagram-container.active-print-target {
        display: block !important;
        visibility: visible !important;
        position: static !important;
        float: none !important;
        left: auto !important;
        top: auto !important;
        width: 100% !important;
        height: auto !important;
        margin: 0 !important;
        padding: 0 !important;
        background: #ffffff !important;
        color: #0f172a !important;
        overflow: visible !important;
        opacity: 1 !important;
    }

    .active-print-target *,
    #print-commercial-container.active-print-target *,
    #print-calculation-container.active-print-target * {
        visibility: visible !important;
        opacity: 1 !important;
    }

    /* Print Cover Page Layout */
    .print-cover-page {
        height: 100vh;
        display: flex !important;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        padding: 40px;
        box-sizing: border-box;
        page-break-after: always;
        background-color: #ffffff;
    }
    
    .cover-logo-wrapper {
        margin-bottom: 30px;
        display: flex !important;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    
    .cover-logo-icon {
        font-size: 72px;
        color: #1e3a8a !important;
        margin-bottom: 15px;
    }
    
    .cover-logo-text {
        font-size: 30px;
        font-weight: 800;
        color: #1e3a8a !important;
        display: block;
        letter-spacing: 1px;
    }
    
    .cover-title-box {
        margin-bottom: 60px;
    }
    
    .cover-title-box h1 {
        font-size: 32px;
        font-weight: 800;
        color: #0f172a !important;
        margin-bottom: 10px;
        letter-spacing: -0.5px;
    }
    
    .cover-title-box h2 {
        font-size: 16px;
        font-weight: 600;
        color: #475569 !important;
        text-transform: uppercase;
        letter-spacing: 2px;
    }
    
    .cover-meta-info {
        width: 80%;
        max-width: 500px;
        text-align: left;
        background: #f8fafc;
        border: 1px solid #e2e8f0;
        border-radius: 12px;
        padding: 25px;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    }
    
    .cover-meta-item {
        font-size: 13px;
        margin-bottom: 10px;
        color: #334155 !important;
        border-bottom: 1px dashed #e2e8f0;
        padding-bottom: 6px;
        display: flex !important;
        justify-content: space-between;
    }
    
    .cover-meta-item:last-child {
        margin-bottom: 0;
        border-bottom: none;
        padding-bottom: 0;
    }
    
    .cover-meta-item strong {
        color: #1e3a8a !important;
        width: 120px;
    }

    /* Print Document Structure */
    .print-page-body {
        padding: 5px 0;
    }
    
    .page-break-before {
        page-break-before: auto !important;
        break-before: auto !important;
    }
    
    .print-subheading {
        font-size: 11px;
        font-weight: 700;
        color: #1e3a8a !important;
        margin: 12px 0 6px 0;
        text-transform: uppercase;
    }
    
    .print-justification-box, .print-exclusions-box {
        background-color: #f8fafc !important;
        border: 1px solid #e2e8f0 !important;
        border-radius: 6px;
        padding: 10px 12px;
        font-size: 10px;
        line-height: 1.5;
        margin-bottom: 15px;
        color: #334155 !important;
    }
}

/* ==========================================================================
   INTERACTIVE BLUEPRINT LAYOUT SYSTEM
   ========================================================================== */
.blueprint-layout-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-top: 20px;
}

.blueprint-tabs-header {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.blueprint-tab-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13.5px;
    font-weight: 500;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.blueprint-tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.blueprint-tab-btn.active {
    color: #fff;
    background: var(--accent-orange);
    border-color: var(--accent-orange);
    box-shadow: 0 0 10px rgba(249, 115, 22, 0.25);
}

.blueprint-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    padding: 10px;
    border-radius: 8px;
    border: 1px dashed var(--border-color);
}

.blueprint-canvas-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #090d16;
    border-radius: 10px;
    border: 2px dashed #334155;
    padding: 15px;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.6);
}

.blueprint-canvas {
    position: relative;
    width: 100%;
    max-width: 800px;
    height: 480px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    transition: background-image 0.25s ease;
}

.blueprint-canvas.empty-blueprint {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-secondary);
    border: 1px dashed rgba(255, 255, 255, 0.1);
    background-image: radial-gradient(rgba(255, 255, 255, 0.02) 1.5px, transparent 1.5px);
    background-size: 16px 16px;
}

.blueprint-canvas.empty-blueprint i {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

/* Draggable Items */
.draggable-equipment-item {
    position: absolute;
    width: 100px;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border: 2px solid #38bdf8;
    border-radius: 6px;
    padding: 6px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5), 0 0 10px rgba(56, 189, 248, 0.2);
    cursor: move;
    z-index: 100;
    user-select: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    font-size: 10.5px;
    color: #fff;
    text-align: center;
}

.draggable-equipment-item:hover {
    border-color: #60a5fa;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.6), 0 0 12px rgba(96, 165, 250, 0.4);
}

.draggable-equipment-item.dragging {
    opacity: 0.8;
    border-color: var(--accent-orange);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.7), 0 0 15px rgba(249, 115, 22, 0.5);
}

.draggable-equipment-item.item-condensadora {
    border-color: #a855f7;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5), 0 0 10px rgba(168, 85, 247, 0.2);
}

.draggable-equipment-item.item-condensadora:hover {
    border-color: #c084fc;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.6), 0 0 12px rgba(192, 132, 252, 0.4);
}

.draggable-equipment-item .item-title {
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}

.draggable-equipment-item .item-type {
    font-size: 9px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.draggable-equipment-item .item-visuals {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
    background: rgba(0, 0, 0, 0.25);
    border-radius: 4px;
    padding: 3px;
    margin-bottom: 4px;
}

.draggable-equipment-item .item-fan {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.draggable-equipment-item .item-fan i {
    font-size: 8px;
    animation: spin-fan 1.2s linear infinite;
}

.draggable-equipment-item.item-condensadora .item-fan i {
    color: #a855f7;
}

.draggable-equipment-item.item-evaporador .item-fan i {
    color: #38bdf8;
}

.draggable-equipment-item .item-airflow-arrow {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2px;
}

.draggable-equipment-item .item-airflow-arrow i {
    font-size: 11px;
    color: #38bdf8;
    animation: flow-arrow 1.5s infinite;
}

@keyframes flow-arrow {
    0% { transform: translateY(-2px); opacity: 0.4; }
    50% { transform: translateY(2px); opacity: 1; }
    100% { transform: translateY(-2px); opacity: 0.4; }
}

.draggable-equipment-item .item-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 4px;
    margin-top: 4px;
}

.draggable-equipment-item .ctrl-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 10px;
    padding: 2px 4px;
    border-radius: 3px;
    transition: all 0.2s;
}

.draggable-equipment-item .ctrl-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.draggable-equipment-item .ctrl-btn.btn-delete:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.15);
}

/* Responsive adjust for canvas */
@media (max-width: 768px) {
    .blueprint-canvas {
        height: 360px;
    }
}

/* Print custom blueprint adjustments */
@media print {
    .blueprint-canvas-wrapper {
        background: #fff !important;
        border: 1px solid #cbd5e1 !important;
        box-shadow: none !important;
        padding: 5px !important;
        page-break-inside: avoid;
    }
    
    .blueprint-canvas {
        max-width: 100% !important;
        height: 380px !important;
        border: none !important;
    }
    
    .draggable-equipment-item {
        background: #fff !important;
        border: 2px solid #000 !important;
        box-shadow: none !important;
        color: #000 !important;
    }
    
    .draggable-equipment-item .item-type {
        color: #475569 !important;
    }
    
    .draggable-equipment-item .item-visuals {
        background: #f1f5f9 !important;
        border: 1px solid #cbd5e1 !important;
    }
    
    .draggable-equipment-item .item-fan i,
    .draggable-equipment-item .item-airflow-arrow i {
        color: #000 !important;
        animation: none !important;
    }
    
    .draggable-equipment-item .item-controls {
        display: none !important;
    }
}

/* Calibration Box styles */
.blueprint-calibration-box {
    position: absolute;
    border: 2px dashed #10b981;
    background: rgba(16, 185, 129, 0.12);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
    cursor: move;
    z-index: 50;
    box-sizing: border-box;
}

.blueprint-calibration-label {
    position: absolute;
    top: -24px;
    left: 0;
    background: #10b981;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
    white-space: nowrap;
    text-transform: uppercase;
    pointer-events: none;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.calibration-resize-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #fff;
    border: 2px solid #10b981;
    border-radius: 50%;
    z-index: 60;
}

.calibration-resize-handle.handle-nw { top: -5px; left: -5px; cursor: nwse-resize; }
.calibration-resize-handle.handle-ne { top: -5px; right: -5px; cursor: nesw-resize; }
.calibration-resize-handle.handle-se { bottom: -5px; right: -5px; cursor: nwse-resize; }
.calibration-resize-handle.handle-sw { bottom: -5px; left: -5px; cursor: nesw-resize; }

.blueprint-canvas.hide-calibration .blueprint-calibration-box {
    border-color: transparent;
    background: transparent;
    box-shadow: none;
    cursor: default;
    pointer-events: none;
}

.blueprint-canvas.hide-calibration .blueprint-calibration-label,
.blueprint-canvas.hide-calibration .calibration-resize-handle {
    display: none !important;
}

/* -------------------------------------------------------------
   REFRIGERATION CIRCUIT DIAGRAM & UNCLUTTERED HOTSPOTS SYSTEM
   ------------------------------------------------------------- */
.circuit-diagram-container {
    position: relative;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    aspect-ratio: 1537 / 1023;
    min-height: 360px;
    border: 2px solid rgba(56, 189, 248, 0.3);
    border-radius: 12px;
    overflow: hidden;
    background: #090f1d;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.circuit-bg-img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

/* Uncluttered Circular Pins / Hotspots */
.circuit-hotspot-pin {
    position: absolute;
    transform: translate(calc(-50% + var(--offset-x, 0px)), calc(-50% + var(--offset-y, 0px)));
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0284c7, #1e3a8a);
    border: 2px solid #38bdf8;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.6), 0 4px 10px rgba(0,0,0,0.5);
    cursor: pointer;
    z-index: 25;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.circuit-hotspot-pin:hover,
.circuit-hotspot-pin.active-pin {
    transform: translate(calc(-50% + var(--offset-x, 0px)), calc(-50% + var(--offset-y, 0px))) scale(1.25);
    z-index: 50;
    border-color: #34d399;
    background: linear-gradient(135deg, #059669, #064e3b);
    box-shadow: 0 0 25px rgba(52, 211, 153, 0.8), 0 8px 20px rgba(0,0,0,0.8);
}

.circuit-hotspot-pin.is-quoted-pin {
    border-color: #34d399;
    background: linear-gradient(135deg, #0284c7, #059669);
}

.circuit-hotspot-pin.not-quoted-pin {
    border-color: #64748b;
    background: rgba(15, 23, 42, 0.8);
    color: #94a3b8;
    opacity: 0.7;
}

.circuit-hotspot-pin .pin-number {
    position: absolute;
    top: -6px;
    right: -6px;
    background: #fbbf24;
    color: #0f172a;
    font-size: 9px;
    font-weight: 800;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #0f172a;
}

/* Floating Popover Tooltip for Hotspot */
.circuit-pin-popover {
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    width: 250px;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border: 1.5px solid #38bdf8;
    border-radius: 10px;
    padding: 12px;
    color: #ffffff;
    box-shadow: 0 10px 30px rgba(0,0,0,0.7);
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 60;
    text-align: left;
}

.circuit-pin-popover.popover-down {
    bottom: auto;
    top: 120%;
}

.circuit-pin-popover.popover-left {
    left: auto;
    right: -10px;
    transform: none;
}

.circuit-pin-popover.popover-right {
    left: -10px;
    transform: none;
}

.circuit-hotspot-pin:hover .circuit-pin-popover,
.circuit-hotspot-pin.active-pin .circuit-pin-popover {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Spacious Quoted Product Card Grid */
.quoted-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.quoted-product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 14px 16px;
    display: flex;
    gap: 14px;
    align-items: center;
    transition: all 0.2s ease;
    cursor: pointer;
}

.quoted-product-card:hover,
.quoted-product-card.card-highlight {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(56, 189, 248, 0.15);
}

tr.anchor-row-highlight {
    background: rgba(56, 189, 248, 0.15) !important;
    outline: 1px solid var(--accent-blue);
}

/* Selector de Modo de Vista (Pines vs Fotos Reales) */
.diagram-view-toggle {
    display: inline-flex;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 8px;
    padding: 3px;
    gap: 4px;
}

.diagram-toggle-btn {
    background: transparent;
    border: none;
    border-radius: 6px;
    padding: 6px 12px;
    color: #94a3b8;
    font-size: 11.5px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.diagram-toggle-btn:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
}

.diagram-toggle-btn.active {
    background: linear-gradient(135deg, #0284c7, #0369a1);
    color: #ffffff;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(2, 132, 199, 0.4);
}

/* Badges de Fotografías Reales Flotantes sobre el Circuito */
.circuit-photo-badge {
    position: absolute;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #ffffff;
    border: 2.5px solid #34d399;
    box-shadow: 0 0 15px rgba(52, 211, 153, 0.6), 0 4px 12px rgba(0,0,0,0.5);
    cursor: pointer;
    z-index: 30;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.circuit-photo-badge.not-quoted-photo {
    border-color: #64748b;
    box-shadow: 0 2px 8px rgba(0,0,0,0.4);
    opacity: 0.8;
}

.circuit-photo-badge:hover,
.circuit-photo-badge.active-pin {
    transform: translate(-50%, -50%) scale(1.3);
    z-index: 55;
    border-color: #38bdf8;
    box-shadow: 0 0 25px rgba(56, 189, 248, 0.8), 0 8px 20px rgba(0,0,0,0.7);
}

.circuit-photo-badge .photo-thumb-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3px;
    background: #ffffff;
}

.circuit-photo-badge .photo-pin-num {
    position: absolute;
    bottom: -4px;
    right: -4px;
    background: #0284c7;
    color: #ffffff;
    font-size: 9px;
    font-weight: 800;
    padding: 1px 5px;
    border-radius: 10px;
    border: 1px solid #ffffff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.5);
}

.circuit-photo-badge:hover .circuit-pin-popover,
.circuit-photo-badge.active-pin .circuit-pin-popover {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Tarjeta / Overlay con Foto Real sobre el Diagrama del Circuito */
.circuit-real-product-overlay {
    position: absolute;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border: 2px solid #34d399;
    border-radius: 12px;
    padding: 6px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7), 0 0 15px rgba(52, 211, 153, 0.4);
    z-index: 35;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.circuit-real-product-overlay:hover,
.circuit-real-product-overlay.active-pin {
    transform: translate(-50%, -50%) scale(1.18);
    z-index: 60;
    border-color: #38bdf8;
    box-shadow: 0 15px 35px rgba(56, 189, 248, 0.6), 0 0 25px rgba(56, 189, 248, 0.8);
}

.circuit-real-product-overlay.not-quoted-overlay {
    border-color: #64748b;
    background: rgba(15, 23, 42, 0.85);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    opacity: 0.8;
}

.circuit-real-product-overlay .overlay-img-container {
    width: 75px;
    height: 65px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 8px;
    background: #ffffff;
    padding: 3px;
}

.circuit-real-product-overlay.is-large .overlay-img-container {
    width: 125px;
    height: 100px;
}

.circuit-real-product-overlay .overlay-badge-tag {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: #0284c7;
    color: #ffffff;
    font-size: 9.5px;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 12px;
    white-space: nowrap;
    box-shadow: 0 3px 8px rgba(0,0,0,0.5);
    border: 1px solid #ffffff;
    display: flex;
    align-items: center;
    gap: 4px;
}

.circuit-real-product-overlay.is-quoted-overlay .overlay-badge-tag {
    background: #059669;
}

.circuit-real-product-overlay:hover .circuit-pin-popover,
.circuit-real-product-overlay.active-pin .circuit-pin-popover {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Reglas de Impresión Personalizadas para el Diagrama Técnico 3D */
@media print {
    body.print-mode-diagram {
        background: #ffffff !important;
        color: #000000 !important;
        margin: 0 !important;
        padding: 0 !important;
        font-family: system-ui, -apple-system, sans-serif !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    body.print-mode-diagram * {
        visibility: visible !important;
    }

    body.print-mode-diagram .app-container {
        display: block !important;
        height: auto !important;
        overflow: visible !important;
        visibility: visible !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    body.print-mode-diagram .app-header,
    body.print-mode-diagram .sidebar,
    body.print-mode-diagram .tab-navigation,
    body.print-mode-diagram button,
    body.print-mode-diagram .btn-primary,
    body.print-mode-diagram .btn-secondary,
    body.print-mode-diagram .tab-content:not(#tab-diagram3d),
    body.print-mode-diagram #print-commercial-container,
    body.print-mode-diagram #print-calculation-container {
        display: none !important;
        height: 0 !important;
        overflow: hidden !important;
    }

    body.print-mode-diagram #tab-diagram3d {
        display: block !important;
        visibility: visible !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    body.print-mode-diagram .section-card {
        padding: 0 !important;
        box-shadow: none !important;
        border: none !important;
        background: transparent !important;
    }

    body.print-mode-diagram #diagram-3d-viewport {
        background: #0f172a !important;
        border: 1px solid #334155 !important;
        page-break-inside: avoid !important;
        border-radius: 8px !important;
        margin-bottom: 20px !important;
        display: block !important;
    }

    body.print-mode-diagram .circuit-diagram-container {
        page-break-inside: avoid !important;
        position: relative !important;
        display: block !important;
    }

    body.print-mode-diagram .circuit-bg-img {
        max-height: 480px !important;
        object-fit: contain !important;
        display: block !important;
    }

    body.print-mode-diagram .circuit-hotspot-pin {
        display: flex !important;
        visibility: visible !important;
        border-color: #34d399 !important;
        box-shadow: 0 0 10px rgba(52,211,153,0.5) !important;
    }

    body.print-mode-diagram .quoted-products-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
        page-break-inside: avoid !important;
    }

    body.print-mode-diagram .quoted-product-card {
        display: flex !important;
        border: 1px solid #cbd5e1 !important;
        background: #f8fafc !important;
        color: #0f172a !important;
        page-break-inside: avoid !important;
    }

    body.print-mode-diagram .anchors-matrix-table {
        display: table !important;
        width: 100% !important;
        page-break-inside: avoid !important;
        border: 1px solid #cbd5e1 !important;
    }

    body.print-mode-diagram .anchors-matrix-table tr {
        display: table-row !important;
    }

    body.print-mode-diagram .anchors-matrix-table th, 
    body.print-mode-diagram .anchors-matrix-table td {
        display: table-cell !important;
        color: #0f172a !important;
        border-bottom: 1px solid #cbd5e1 !important;
    }
}

/* ==========================================================================
   DISEÑO MINIMALISTA DE ALTA GAMA: TABLA DE PRESUPUESTO COMERCIAL
   ========================================================================== */
#quote-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(15, 23, 42, 0.2);
    border: 1px solid rgba(56, 189, 248, 0.15);
}

#quote-table th,
.table-section-header-row td {
    background: rgba(30, 41, 59, 0.7) !important;
    color: #ffffff !important;
    font-size: 13px !important;
    font-weight: 800 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.8px !important;
    padding: 15px 18px !important;
    border-top: 1px solid rgba(255, 255, 255, 0.15) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15) !important;
}

#quote-table td {
    padding: 14px 18px;
    vertical-align: middle;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: background 0.2s ease;
}

#quote-table tbody tr:last-child td {
    border-bottom: none;
}

#quote-table tbody tr:hover td {
    background: rgba(56, 189, 248, 0.03);
}

.quote-sku-select-modern {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid rgba(56, 189, 248, 0.25);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 12.5px;
    font-weight: 500;
    transition: border-color 0.2s, box-shadow 0.2s;
    text-overflow: ellipsis;
    overflow: hidden;
}

.quote-sku-select-modern:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
    outline: none;
}

.sku-pill-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(56, 189, 248, 0.08);
    color: var(--accent-blue);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    border: 1px solid rgba(56, 189, 248, 0.2);
    margin-top: 6px;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s;
}

.sku-pill-badge:hover {
    background: rgba(56, 189, 248, 0.18);
    border-color: var(--accent-blue);
    text-decoration: none;
}

/* ==========================================================================
   SISTEMA DE DISEÑO ADAPTATIVO TOTALMENTE RESPONSIVO (MÓVIL, TABLET, DESKTOP)
   ========================================================================== */

/* 1. CONTENEDORES PRINCIPALES Y WORKSPACE */
.app-container {
    width: 100%;
    max-width: 100%;
    min-height: 100vh;
    height: auto;
}

@media (min-width: 1600px) {
    .app-container {
        max-width: 1800px;
        margin: 0 auto;
    }
}

/* 2. ENCABEZADO SUPERIOR ADAPTATIVO (HEADER) */
@media (max-width: 992px) {
    .main-header {
        flex-wrap: wrap !important;
        padding: 10px 15px !important;
        gap: 10px !important;
        justify-content: space-between !important;
    }

    .logo-area {
        gap: 10px !important;
    }

    .logo-area h1 {
        font-size: 14px !important;
    }

    .header-controls {
        display: flex !important;
        align-items: center !important;
        gap: 8px !important;
        flex-wrap: wrap !important;
    }
}

@media (max-width: 576px) {
    .main-header {
        flex-direction: column !important;
        align-items: flex-start !important;
        padding: 10px 12px !important;
    }

    .logo-area {
        width: 100% !important;
        justify-content: space-between !important;
    }

    .logo-container {
        width: 140px !important;
        height: 40px !important;
    }

    .logo-area h1 {
        font-size: 12px !important;
        line-height: 1.2 !important;
    }

    .header-controls {
        width: 100% !important;
        justify-content: flex-end !important;
        margin-top: 5px !important;
        gap: 6px !important;
    }

    .header-controls button:not(.btn-header-more) {
        padding: 6px 10px !important;
        font-size: 11.5px !important;
    }

    .btn-header-action {
        padding: 0 10px !important;
        font-size: 12px !important;
        height: 34px !important;
    }

    .btn-header-more {
        width: 34px !important;
        height: 34px !important;
        min-width: 34px !important;
        min-height: 34px !important;
        padding: 0 !important;
    }
}

/* 3. BARRA DE NAVEGACIÓN Y PESTAÑAS CON DESPLAZAMIENTO TÁCTIL SUAVE */
@media (max-width: 1024px) {
    .workspace {
        flex-direction: column !important;
        height: auto !important;
        overflow: visible !important;
    }

    .sidebar {
        width: 100% !important;
        min-width: 100% !important;
        border-right: none !important;
        border-bottom: 1px solid var(--border-color) !important;
        padding: 8px 0 !important;
        background: var(--bg-sidebar) !important;
        position: sticky !important;
        top: 0 !important;
        z-index: 100 !important;
        box-shadow: 0 4px 12px rgba(0,0,0,0.15) !important;
    }

    .nav-menu {
        display: flex !important;
        flex-direction: row !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        white-space: nowrap !important;
        padding: 4px 12px !important;
        gap: 8px !important;
        scrollbar-width: none !important;
    }

    .nav-menu::-webkit-scrollbar {
        display: none !important;
    }

    .nav-item {
        flex: 0 0 auto !important;
        display: inline-flex !important;
        align-items: center !important;
        gap: 8px !important;
        padding: 8px 14px !important;
        font-size: 12.5px !important;
        border-radius: 8px !important;
        white-space: nowrap !important;
    }

    .content-area {
        width: 100% !important;
        padding: 15px 12px !important;
        overflow: visible !important;
    }

    .results-panel {
        width: 100% !important;
        min-width: 100% !important;
        border-left: none !important;
        border-top: 1px solid var(--border-color) !important;
        padding: 20px 15px !important;
    }

    .results-sticky {
        position: static !important;
    }
}

/* 4. REJILLAS Y FORMULARIOS ADAPTATIVOS */
@media (max-width: 1350px) {
    .product-adder-box .grid-4-cols {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 14px !important;
    }
    .product-adder-box .grid-4-cols-compact {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
    }
}

@media (max-width: 992px) {
    .grid-4-cols, .grid-3-cols {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 768px) {
    .product-adder-box {
        padding: 16px 14px !important;
    }
    .product-list-container .flex-header-row {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 10px !important;
    }
    .product-list-container .flex-header-row button {
        width: 100% !important;
    }
    #products-table th, #products-table td {
        white-space: nowrap !important;
        padding: 8px 10px !important;
    }
}

@media (max-width: 580px) {
    .product-adder-box .grid-4-cols,
    .product-adder-box .grid-4-cols-compact {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }
    .product-adder-box .col-span-2 {
        grid-column: span 1 !important;
    }
    .product-adder-box .flex-align-end {
        padding-bottom: 0 !important;
        margin-top: 5px !important;
    }
}

@media (max-width: 640px) {
    .grid-4-cols, .grid-3-cols, .grid-2-cols, .walls-config-grid, .dashboard-grid {
        grid-template-columns: 1fr !important;
    }

    .col-span-2, .col-span-3, .col-span-4 {
        grid-column: span 1 !important;
    }

    .section-card {
        padding: 15px 12px !important;
        border-radius: 12px !important;
    }

    .section-card h2 {
        font-size: 15px !important;
    }

    .form-group label {
        font-size: 12px !important;
    }

    input[type="text"], input[type="number"], select, textarea {
        font-size: 13px !important;
        padding: 10px 12px !important;
    }

    /* Sliders de rango en dispositivos táctiles */
    input[type="range"] {
        height: 10px !important;
        margin: 14px 0 !important;
    }

    input[type="range"]::-webkit-slider-thumb {
        width: 22px !important;
        height: 22px !important;
    }
}

/* 5. TABLAS RESPONSIVAS CON DESPLAZAMIENTO LATERAL TÁCTIL */
.data-table-container, div:has(> table.data-table), div:has(> table.print-table) {
    width: 100% !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    margin-bottom: 12px !important;
}

.data-table {
    width: 100% !important;
    border-collapse: collapse !important;
}

@media (max-width: 768px) {
    #tab-quote .data-table, #tab-selection .data-table {
        min-width: 580px !important;
    }
}

/* Sub-tarjetas y tablas del Inventario de Equipos Comercializados */
.internal-sub-card .data-table, table.font-small {
    min-width: 0 !important;
    width: 100% !important;
    table-layout: auto !important;
}

.internal-sub-card {
    min-width: 0 !important;
    width: 100% !important;
    overflow-x: auto !important;
    box-sizing: border-box !important;
}

#tab-catalog .grid-2-cols {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)) !important;
    gap: 20px !important;
    width: 100% !important;
}

@media (max-width: 640px) {
    .data-table th, .data-table td {
        padding: 8px 10px !important;
        font-size: 12px !important;
    }

    .sku-pill-badge {
        font-size: 10px !important;
        padding: 3px 8px !important;
    }

    .quote-sku-select-modern {
        font-size: 11.5px !important;
        padding: 6px 8px !important;
    }
}

/* 6. BOTONES Y GRUPOS DE ACCIONES */
.button-group, .product-adder-box, .actions-bar {
    max-width: 100% !important;
    flex-wrap: wrap !important;
}

@media (max-width: 768px) {
    .btn-primary, .btn-secondary, .btn-danger, .btn-success {
        padding: 8px 16px !important;
        font-size: 12.5px !important;
    }
}

/* 7. GRÁFICAS Y DIAGRAMAS RESPONSIVOS */
.chart-container {
    position: relative !important;
    width: 100% !important;
    max-width: 100% !important;
    max-height: 280px !important;
    margin: 0 auto !important;
}

#loadChart, canvas {
    max-width: 100% !important;
    height: auto !important;
}

/* 8. PANEL DE RESULTADOS Y CAPACIDADES TÉRMICAS */
@media (max-width: 1024px) {
    .results-summary-grid {
        display: grid !important;
        grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)) !important;
        gap: 10px !important;
    }
}

.hidden {
    display: none !important;
}

/* 9. ESTILOS DE ONBOARDING PROFESIONAL OYON */
.onboarding-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.82);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.onboarding-overlay.hidden {
    display: none !important;
}

.onboarding-modal-card {
    position: relative;
    background: #ffffff;
    width: 100%;
    max-width: 580px;
    border-radius: 18px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.4);
    padding: 32px 28px;
    overflow: hidden;
    color: #1e293b;
}

.onboarding-close-x {
    position: absolute;
    top: 14px;
    right: 18px;
    background: transparent;
    border: none;
    font-size: 26px;
    color: #94a3b8;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s ease;
    z-index: 10;
}

.onboarding-close-x:hover {
    color: #0f172a;
}

.onboarding-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}

.onboarding-screen.hidden {
    display: none !important;
}

.onboarding-screen.active {
    display: flex !important;
    animation: onboardingFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes onboardingFadeIn {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.onboarding-logo-badge {
    width: 200px;
    margin: 0 auto 16px auto;
    padding: 12px 18px;
    border-radius: 14px;
    background: rgba(2, 132, 199, 0.05);
    border: 1.5px solid rgba(2, 132, 199, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
}

.onboarding-logo-img {
    max-width: 100%;
    height: auto;
    display: block;
}

.onboarding-title-lg {
    font-size: 20px;
    font-weight: 800;
    color: #1e3a8a;
    margin-bottom: 8px;
    line-height: 1.3;
}

.onboarding-subtitle {
    font-size: 13.5px;
    color: #475569;
    max-width: 420px;
    margin: 0 auto;
    line-height: 1.5;
}

.onboarding-hero-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0284c7, #1e3a8a);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin: 0 auto 16px auto;
    box-shadow: 0 10px 25px rgba(2, 132, 199, 0.35);
}

.onboarding-title {
    font-size: 21px;
    font-weight: 800;
    color: #1e3a8a;
    margin-bottom: 10px;
    letter-spacing: -0.3px;
}

.onboarding-desc {
    font-size: 13.5px;
    color: #475569;
    line-height: 1.55;
    margin-bottom: 20px;
    max-width: 460px;
}

.onboarding-hero-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 24px;
}

.onboarding-feature-pill {
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: #334155;
    display: flex;
    align-items: center;
    gap: 6px;
}

.onboarding-feature-pill i {
    color: #0284c7;
}

.onboarding-actions-footer {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.full-width {
    width: 100% !important;
}

.onboarding-step-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.onboarding-step-badge {
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #0284c7;
    background: #e0f2fe;
    padding: 4px 12px;
    border-radius: 12px;
}

.onboarding-progress-text {
    font-size: 12.5px;
    font-weight: 700;
    color: #64748b;
}

.onboarding-progress-bar {
    width: 100%;
    height: 6px;
    background: #e2e8f0;
    border-radius: 3px;
    margin-bottom: 20px;
    overflow: hidden;
}

.onboarding-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #0284c7, #2563eb);
    border-radius: 3px;
    transition: width 0.35s ease;
}

.onboarding-body {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.onboarding-icon-banner {
    width: 54px;
    height: 54px;
    border-radius: 16px;
    background: rgba(2, 132, 199, 0.1);
    color: #0284c7;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px auto;
}

.onboarding-icon-banner.success {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.onboarding-step-title {
    font-size: 18px;
    font-weight: 800;
    color: #1e3a8a;
    margin-bottom: 6px;
}

.onboarding-grid-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    width: 100%;
    margin: 14px 0 20px 0;
}

.onboarding-info-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 12.5px;
    font-weight: 600;
    color: #334155;
    display: flex;
    align-items: center;
    gap: 10px;
    text-align: left;
}

.onboarding-info-card i {
    font-size: 16px;
    color: #0284c7;
    flex-shrink: 0;
}

.onboarding-info-card.full-span {
    grid-column: span 2;
}

.onboarding-checklist-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    width: 100%;
    text-align: left;
    margin: 14px 0 20px 0;
}

.onboarding-check-item {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 8px;
    padding: 9px 12px;
    font-size: 12.5px;
    font-weight: 600;
    color: #166534;
    display: flex;
    align-items: center;
    gap: 8px;
}

.onboarding-check-item i {
    color: #16a34a;
}

.onboarding-nav-buttons {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    padding-top: 16px;
    border-top: 1px solid #f1f5f9;
}

.onboarding-skip-link {
    background: none;
    border: none;
    color: #64748b;
    font-size: 12.5px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
    transition: color 0.2s ease;
    padding: 0;
}

.onboarding-skip-link:hover {
    color: #0f172a;
}

.onboarding-nav-right {
    display: flex;
    gap: 10px;
}

.onboarding-btn-glow {
    box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4);
}

@media (max-width: 600px) {
    .onboarding-modal-card {
        padding: 24px 18px;
    }
    .onboarding-grid-info, .onboarding-checklist-grid {
        grid-template-columns: 1fr;
    }
    .onboarding-info-card.full-span {
        grid-column: span 1;
    }
    .onboarding-title-lg {
        font-size: 18px;
    }
    .onboarding-title {
        font-size: 19px;
    }
}

/* ==========================================================================
   10. ESTILOS DE TOUR GUIADO INTERACTIVO EN PANTALLA (WALKTHROUGH TOUR)
   ========================================================================== */
.interactive-tour-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 2147483640;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.interactive-tour-overlay.hidden {
    display: none !important;
}

.interactive-tour-spotlight {
    position: absolute;
    box-shadow: 0 0 0 9999px rgba(15, 23, 42, 0.78),
                0 0 25px rgba(2, 132, 199, 0.6);
    border: 2.5px solid #0284c7;
    border-radius: 8px;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    animation: tourPulse 2.2s infinite ease-in-out;
}

@keyframes tourPulse {
    0% { box-shadow: 0 0 0 9999px rgba(15, 23, 42, 0.78), 0 0 15px rgba(2, 132, 199, 0.5); }
    50% { box-shadow: 0 0 0 9999px rgba(15, 23, 42, 0.78), 0 0 32px rgba(56, 189, 248, 0.95); }
    100% { box-shadow: 0 0 0 9999px rgba(15, 23, 42, 0.78), 0 0 15px rgba(2, 132, 199, 0.5); }
}

.interactive-tour-card {
    position: absolute;
    width: 360px;
    max-width: calc(100vw - 32px);
    background: var(--bg-card, #ffffff);
    color: var(--text-primary, #0f172a);
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 12px;
    box-shadow: 0 20px 35px -8px rgba(0, 0, 0, 0.35), 0 0 20px rgba(2, 132, 199, 0.25);
    padding: 18px 20px;
    z-index: 2147483645;
    pointer-events: auto;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

body.dark-mode .interactive-tour-card {
    background: #1e293b;
    border-color: #334155;
    color: #f8fafc;
}

.tour-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.tour-card-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(2, 132, 199, 0.12);
    color: #0284c7;
    font-weight: 600;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 20px;
}

body.dark-mode .tour-card-badge {
    background: rgba(56, 189, 248, 0.18);
    color: #38bdf8;
}

.tour-close-btn {
    background: none;
    border: none;
    font-size: 20px;
    line-height: 1;
    color: var(--text-secondary, #64748b);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
}

.tour-close-btn:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.tour-step-title {
    font-size: 16px;
    font-weight: 700;
    margin: 0 0 8px 0;
    color: var(--text-primary, #0f172a);
}

body.dark-mode .tour-step-title {
    color: #f8fafc;
}

.tour-step-desc {
    font-size: 13.5px;
    line-height: 1.5;
    margin: 0 0 16px 0;
    color: var(--text-secondary, #475569);
}

body.dark-mode .tour-step-desc {
    color: #cbd5e1;
}

.tour-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    border-top: 1px solid var(--border-color, #e2e8f0);
}

body.dark-mode .tour-card-footer {
    border-color: #334155;
}

.tour-skip-link {
    background: none;
    border: none;
    color: var(--text-muted, #94a3b8);
    font-size: 12.5px;
    cursor: pointer;
    text-decoration: underline;
    padding: 0;
}

.tour-skip-link:hover {
    color: var(--text-secondary, #64748b);
}

.tour-nav-buttons {
    display: flex;
    gap: 8px;
}

/* Adaptación responsive del Tour para Móviles y Tabletas (iPad, iPhone, Android) */
@media (max-width: 768px) {
    .interactive-tour-card {
        position: fixed !important;
        bottom: 20px !important;
        top: auto !important;
        left: 16px !important;
        right: 16px !important;
        width: auto !important;
        max-width: none !important;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(2, 132, 199, 0.4);
        padding: 16px 18px;
    }
    
    .tour-step-title {
        font-size: 15px;
    }
    
    .tour-step-desc {
        font-size: 12.5px;
        margin-bottom: 12px;
    }
}

/* ==========================================================================
   NAVEGACIÓN SECUENCIAL DE PANTALLAS (BOTONES ANTERIOR / SIGUIENTE)
   ========================================================================== */
.tab-navigation-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 25px;
    padding-top: 18px;
    border-top: 1px solid var(--border-color, #e2e8f0);
    width: 100%;
    box-sizing: border-box;
}

.btn-tab-nav {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    font-size: 13px;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    line-height: 1.2;
}

.btn-tab-prev {
    background: var(--bg-card, #f8fafc);
    color: var(--text-primary, #334155);
    border: 1px solid var(--border-color, #cbd5e1);
}

.btn-tab-prev:hover:not(:disabled) {
    background: #e2e8f0;
}

.btn-tab-next {
    background: linear-gradient(135deg, #0284c7, #0369a1);
    color: #ffffff;
    margin-left: auto;
}

.btn-tab-next:hover:not(:disabled) {
    background: linear-gradient(135deg, #0369a1, #075985);
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
}

.btn-tab-nav:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    box-shadow: none !important;
    pointer-events: none;
}

/* Custom City Dropdown Menu */
.custom-city-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    max-height: 250px;
    overflow-y: auto;
    z-index: 1000;
    padding: 6px 0;
}

#climate-loaded-badge {
    position: absolute;
    top: calc(100% + 2px);
    left: 0;
    white-space: nowrap;
    z-index: 10;
    pointer-events: none;
}

.city-dropdown-header {
    padding: 6px 12px 4px 12px;
    font-size: 11px;
    font-weight: 800;
    color: #0284c7;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
    border-bottom: 1px solid #e2e8f0;
}

.city-dropdown-header:first-child {
    border-top: none;
}

.city-dropdown-item {
    padding: 8px 14px;
    font-size: 13px;
    color: #0f172a;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.city-dropdown-item:hover {
    background: #f1f5f9;
    color: #0284c7;
}

.city-dropdown-item .city-meta {
    font-size: 11px;
    color: #64748b;
    font-weight: 500;
}

/* Selector Discreto de Idioma (i18n ES / EN) */
.lang-selector {
    display: inline-flex;
    align-items: center;
    background: rgba(2, 132, 199, 0.08);
    border: 1px solid rgba(2, 132, 199, 0.25);
    border-radius: 8px;
    padding: 2px;
    gap: 2px;
    font-weight: 700;
    font-size: 12px;
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary, #64748b);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1.2;
}

.lang-btn:hover {
    color: #0284c7;
}

.lang-btn.active {
    background: #0284c7;
    color: #ffffff !important;
    box-shadow: 0 2px 6px rgba(2, 132, 199, 0.3);
}

.cover-lang-selector {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.cover-lang-selector .lang-btn {
    color: #cbd5e1;
}

.cover-lang-selector .lang-btn:hover {
    color: #ffffff;
}

.cover-lang-selector .lang-btn.active {
    background: #0284c7;
    color: #ffffff !important;
}