/* indexteststyle.css - Lab.OS Technical Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&family=JetBrains+Mono:wght@400;500&display=swap');


@font-face {
    font-family: 'FreeBSC';
    src: url('resources/FREEBSC_.ttf') format('truetype');
}

@font-face {
    font-family: 'ArtySignature';
    src: url('resources/Arty Signature.otf') format('opentype');
}

:root {
    /* Default: Sky Blue Dark Theme */
    --bg-color: #0a0a0a;
    --surface-color: #141414;
    --accent-color: #00bfff; /* Sky Blue */
    --accent: var(--accent-color);
    --bg-main: var(--bg-color);
    --bg-secondary: var(--surface-color);
    --metallic-silver: #c0c0c0;
    --metallic-dark: #2c2c2c;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --border-color: rgba(255, 255, 255, 0.1);
    --metallic-gradient: linear-gradient(145deg, #2a2a2a, #141414);
    --header-height: 70px;
    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-handwriting: 'FreeBSC', serif;
    --font-signature: 'ArtySignature', cursive;
}

[data-theme="light"] {
    --bg-color: #f5f5f5;
    --surface-color: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --border-color: rgba(0, 0, 0, 0.1);
    --metallic-gradient: linear-gradient(145deg, #e0e0e0, #ffffff);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.6;
}

img, svg, video, canvas {
    max-width: 100%;
}

main {
    width: 100%;
}

button, input, select, textarea {
    font: inherit;
}

html {
    scroll-behavior: smooth;
}


/* Scan-line Overlay (Subtle) */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        rgba(18, 16, 16, 0) 50%,
        rgba(0, 0, 0, 0.1) 50%
    );
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.15;
}

/* Header Styles */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: opacity 0.3s ease;
    opacity: 1;
}

.header-ghost {
    /* Removed translateY to focus on opacity as requested */
}

.header-visible {
    opacity: 1;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.branding {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-box {
    border: 1px solid var(--metallic-silver);
    padding: 0.3rem 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    font-family: var(--font-mono);
    color: var(--metallic-silver);
    background: var(--metallic-gradient);
    box-shadow: inset 0 1px 1px rgba(255,255,255,0.1);
}

.company-name {
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    min-width: 200px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    padding: 0.5rem 0;
}

[data-theme="light"] .dropdown-content {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.dropdown-bridge {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 10px;
    background: transparent;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    padding: 0.8rem 1.5rem;
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.dropdown-content a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-color);
}

/* Nested Dropdown */
.nested-dropdown {
    position: relative;
}

.nested-dropdown-content {
    display: none;
    position: absolute;
    left: 100%;
    top: 0;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    min-width: 180px;
    box-shadow: 10px 10px 30px rgba(0,0,0,0.5);
    padding: 0.5rem 0;
}

.nested-dropdown:hover > .nested-dropdown-content {
    display: block;
}

.nested-dropdown-content a {
    padding: 0.8rem 1.5rem;
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.dropdown-group {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.dropdown-group:last-child {
    border-bottom: none;
}

.dropdown-group label {
    display: block;
    font-size: 0.6rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.dropdown-group button, .dropdown-group select {
    width: 100%;
    background: #000;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    cursor: pointer;
    outline: none;
}

[data-theme="light"] .dropdown-group button, 
[data-theme="light"] .dropdown-group select {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    color: var(--text-primary);
}

.dropdown-group button:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

[data-theme="light"] .dropdown-group button:hover {
    background: var(--bg-color);
}

/* Gatekeeper Modal */
#gatekeeper-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.98);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

.modal-content {
    border: 1px solid var(--border-color);
    padding: 4rem;
    max-width: 700px;
    text-align: center;
    background: var(--metallic-gradient);
    box-shadow: 0 20px 50px rgba(0,0,0,0.8), inset 0 1px 1px rgba(255,255,255,0.05);
}

[data-theme="light"] .modal-content {
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}

.modal-content h2 {
    margin-bottom: 2rem;
    letter-spacing: 5px;
    font-weight: 700;
    color: var(--metallic-silver);
    font-family: var(--font-mono);
}

.modal-content p {
    margin-bottom: 3rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.btn-accept {
    background: linear-gradient(135deg, var(--metallic-dark), #111);
    color: var(--metallic-silver);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 2.5rem;
    cursor: pointer;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] .btn-accept {
    background: var(--metallic-gradient);
    color: var(--text-primary);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.btn-accept:hover {
    background: var(--accent-color);
    color: #000;
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 191, 255, 0.2);
}

/* Hero Section */
.hero-section {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0 10%;
    text-align: center;
    background: radial-gradient(circle at center, #1a1a1a 0%, #0a0a0a 100%);
}

.mission-statement {
    max-width: 900px;
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
    line-height: 1.8;
    position: relative;
    padding: 2rem;
}

.mission-statement::before, .mission-statement::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 1px;
    background: var(--accent-color);
}

.mission-statement::before { top: 0; left: 0; }
.mission-statement::after { bottom: 0; right: 0; }

/* About Me Section */
.about-section {
    padding: 12rem 10%;
    background: #050505;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.handwriting-container {
    max-width: 1000px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 2;
}

.handwriting-trigger {
    font-family: var(--font-handwriting);
}

.signature-text {
    font-family: var(--font-signature);
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-top: 2rem;
    display: block;
}

/* Service Grid (Horizontal Showcase) */
.horizontal-scroll-section {
    height: 500vh; /* Provides scroll room for horizontal movement */
    position: relative;
    background: #000;
}

.sticky-wrapper {
    position: sticky;
    top: 0;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.service-grid {
    display: flex;
    height: 100%;
    width: max-content;
    will-change: transform;
}

.service-card {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.card-window {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.parallax-bg {
    position: absolute;
    top: 0;
    left: -20%;
    width: 140%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.3;
    filter: grayscale(100%) contrast(1.2);
    transition: transform 0.1s ease-out;
}

.card-content {
    z-index: 10;
    text-align: left;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(25px);
    padding: 4rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 600px;
    box-shadow: 0 50px 100px rgba(0,0,0,0.5);
    position: relative;
}

.card-content::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    width: 20px;
    height: 20px;
    border-top: 2px solid var(--accent-color);
    border-left: 2px solid var(--accent-color);
}

.card-content h3 {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: #fff;
    letter-spacing: -2px;
}

.card-content h3 span {
    color: var(--accent-color);
}

.card-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

/* Progress Ruler */
#progress-ruler {
    position: fixed;
    right: 0;
    top: 0;
    width: 50px;
    height: 100%;
    border-left: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(0,0,0,0.8);
    z-index: 900;
}

.ruler-track {
    height: 100%;
    position: relative;
}

.tick {
    position: absolute;
    right: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.tick-major { width: 25px; background: rgba(255, 255, 255, 0.3); }
.tick-minor { width: 12px; }

.ruler-indicator {
    position: absolute;
    right: 55px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-color);
}

/* Footer */
#main-footer {
    padding: 6rem 10%;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background: #0a0a0a;
}

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

.footer-links a {
    color: var(--text-secondary);
    margin-right: 3rem;
    text-decoration: none;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links a:hover {
    color: var(--accent-color);
}

.footer-info {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.2);
}

/* Lab Specifics */
.lab-container {
    padding: calc(var(--header-height) + 4rem) 10% 8rem;
    min-height: 100vh;
}

@media screen and (max-width: 768px) {
    .lab-container {
        padding: calc(var(--header-height) + 2rem) 5% 4rem;
    }
}

.lab-header {
    margin-bottom: 4rem;
}

.lab-header h1 {
    font-family: var(--font-mono);
    font-size: 3rem;
    letter-spacing: -2px;
    margin-bottom: 1rem;
}

.lab-header h1 span {
    color: var(--accent-color);
}

.lab-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
}


.lab-intro {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(255,255,255,0.03);
    border-left: 3px solid var(--accent-color);
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.lab-grid {
    display: grid;
    grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
    gap: 2rem;
    align-items: stretch;
    width: 100%;
}

.preview-panel {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    min-width: 0;
    min-height: 520px;
    overflow: auto;
}

.control-panel,
.preview-panel,
.conv-input-group,
.lab-intro,
.estimator-results,
.cta-box {
    border-radius: 0;
}

.lab-grid > * {
    min-width: 0;
}

/* Tabs System */
.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
}

.tabs::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.tab-btn {
    padding: 1rem 2rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s;
    position: relative;
    white-space: nowrap;
}

.tab-btn.active {
    color: var(--accent-color);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Document Lab Specifics */
:root {
    --canvas-bg: #ffffff;
    --canvas-shadow: 0 10px 30px rgba(0,0,0,0.3);
    --a4-width: 794px; /* Approx A4 at 96 DPI */
    --a4-height: 1123px;
}

.lab-grid.document-lab {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    height: calc(100vh - 200px);
    overflow: hidden;
}

.document-lab .control-panel {
    background: rgba(20, 20, 20, 0.8);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
}

.palette-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.palette-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.75rem;
    cursor: grab;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.palette-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
}

.editor-viewport {
    background: #1a1a1a;
    display: flex;
    justify-content: center;
    padding: 2rem;
    overflow: auto;
    position: relative;
    min-width: 0;
}


#document-canvas {
    width: var(--a4-width);
    height: var(--a4-height);
    background: var(--canvas-bg);
    box-shadow: var(--canvas-shadow);
    position: relative;
    transform-origin: top center;
    color: #000;
    padding: 40px;
    box-sizing: border-box;
}

.canvas-element {
    position: absolute;
    cursor: move;
    user-select: none;
    border: 1px solid transparent;
    min-width: 50px;
    min-height: 20px;
}

.canvas-element:hover {
    border: 1px dashed var(--accent-color);
}

.canvas-element.selected {
    border: 1px solid var(--accent-color);
    outline: 1px solid var(--accent-color);
}

.editable-text {
    outline: none;
    min-width: 20px;
    display: inline-block;
}

.editable-text:focus {
    background: rgba(0, 191, 255, 0.1);
}

/* Element-specific styles */
.doc-header-text { font-size: 32px; font-weight: 800; }
.doc-sub-text { font-size: 14px; color: #666; }
.doc-label { font-size: 10px; text-transform: uppercase; color: #999; border-bottom: 1px solid #eee; margin-bottom: 5px; }

/* Template Branching: Hide pricing for Packing Slips */
#document-canvas.template-packing-slip .price-col,
#document-canvas.template-packing-slip .total-col,
#document-canvas.template-packing-slip [data-type="total-box"] {
    display: none !important;
}

[data-type="total-box"] {
    right: 40px !important;
    left: auto !important;
    text-align: right;
}

.doc-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    overflow-wrap: break-word;
    word-wrap: break-word;
}
.doc-table th {
    text-align: left;
    font-size: 10px;
    text-transform: uppercase;
    padding: 8px 0;
    border-bottom: 2px solid #000;
}
.doc-table td {
    padding: 10px 0;
    font-size: 12px;
    border-bottom: 1px solid #eee;
}

.context-menu {
    position: fixed;
    background: #222;
    border: 1px solid #444;
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
    z-index: 1000;
    display: none;
}

.context-menu-item {
    padding: 8px 16px;
    cursor: pointer;
    font-size: 0.8rem;
    color: #eee;
}

.context-menu-item:hover {
    background: var(--accent-color);
    color: #000;
}

.drop-zone-active {
    background: rgba(0, 191, 255, 0.1) !important;
    border-color: var(--accent-color) !important;
}

@media screen and (max-width: 1200px) {
    .lab-grid.document-lab {
        grid-template-columns: 1fr;
        height: auto;
        overflow: visible;
    }

    .document-lab .control-panel {
        height: auto;
        max-height: none;
        order: 1;
    }

    .editor-viewport {
        order: 2;
        justify-content: flex-start;
        padding: 1rem;
        overflow: auto;
        -webkit-overflow-scrolling: touch;
    }

    #document-canvas {
        flex: 0 0 var(--a4-width);
        transform: none;
        transform-origin: top left;
    }
}

/* Estimator Specifics */
.estimator-results {
    margin-top: 2rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: none;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.result-item label {
    display: block;
    font-size: 0.6rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.result-item span {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    color: var(--accent-color);
}

.live-data-bar {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: #000;
    border-left: 3px solid var(--accent-color);
    overflow-x: auto;
}

.live-stat {
    display: flex;
    flex-direction: column;
    white-space: nowrap;
}

.live-stat label {
    font-size: 0.55rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.live-stat span {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: #fff;
}

.weather-alert {
    padding: 1rem;
    background: rgba(255, 165, 0, 0.1);
    border: 1px solid rgba(255, 165, 0, 0.3);
    color: #ffa500;
    font-size: 0.75rem;
    margin-bottom: 2rem;
    display: none;
}

.cta-box {
    margin-top: 3rem;
    text-align: center;
    padding: 3rem;
    border: 1px dashed var(--accent-color);
}

@media screen and (max-width: 768px) {
    .result-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-box {
        padding: 1.5rem;
    }
    
    .live-data-bar {
        gap: 1rem;
    }
}

.control-panel {
    background: var(--metallic-gradient);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    box-shadow: inset 0 1px 1px rgba(255,255,255,0.05);
}

.converter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.conv-input-group {
    background: rgba(255, 255, 255, 0.02);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.conv-input-group label {
    display: block;
    font-size: 0.6rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.8rem;
    letter-spacing: 1px;
}

.conv-input-group input {
    width: 100%;
    background: #000;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--accent-color);
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 1.2rem;
    outline: none;
}

.conv-input-group input:focus {
    border-color: var(--accent-color);
}

.input-group {
    margin-bottom: 2rem;
}

.input-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    letter-spacing: 1px;
}

.input-group input, .input-group select, .input-group textarea {
    width: 100%;
    background: #000;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.3s;
}

[data-theme="light"] .input-group input, 
[data-theme="light"] .input-group select, 
[data-theme="light"] .input-group textarea {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.input-group input:focus, .input-group select:focus, .input-group textarea:focus {
    border-color: var(--accent-color);
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-toggle .bar {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

/* Responsive Media Queries */
@media screen and (max-width: 1024px) {
    .header-container {
        padding: 0 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .nav-links a {
        font-size: 0.7rem;
    }

    .hero-section h1 {
        font-size: 4rem !important;
    }

    .lab-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media screen and (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    .mobile-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--surface-color);
        padding: 6rem 2rem;
        transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
        z-index: 1000;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-links {
        flex-direction: column;
        gap: 2rem;
        align-items: flex-start;
    }

    .nav-links a {
        font-size: 1rem;
    }

    .dropdown-content {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        background: rgba(255, 255, 255, 0.05);
        margin-top: 1rem;
        width: 100%;
    }

    .hero-section {
        padding: 0 5%;
    }

    .hero-section h1 {
        font-size: 3rem !important;
        letter-spacing: -2px !important;
    }

    .mission-statement {
        font-size: 0.9rem;
        padding: 1.5rem;
    }

    .about-section {
        padding: 6rem 5%;
    }

    .card-content {
        padding: 2rem;
        margin: 0 1rem;
    }

    .card-content h3 {
        font-size: 1.8rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .footer-links a {
        margin: 0 1rem;
    }

    .lab-header h1 {
        font-size: 2rem;
    }

    .control-panel {
        padding: 1.5rem;
    }

    .preview-panel {
        min-height: 400px;
        padding: 1.5rem;
    }

    #visuals-canvas {
        height: 400px;
    }
}

/* Accessibility and SEO Enhancements */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus States for Accessibility */
a:focus, button:focus, select:focus, textarea:focus, input:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
}



/* ---------------------------------------------------------
   LBR Responsive Repair Layer
   Desktop is preserved. These rules only tighten tablet/phone.
--------------------------------------------------------- */
@media screen and (max-width: 1200px) {
    .lab-container {
        padding-left: 6%;
        padding-right: 6%;
    }

    #progress-ruler {
        display: none;
    }
}

@media screen and (max-width: 1024px) {
    .lab-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .preview-panel {
        min-height: 420px;
        width: 100%;
    }

    .control-panel {
        width: 100%;
    }

    .live-data-bar {
        flex-wrap: wrap;
    }
}

@media screen and (max-width: 768px) {
    body.mobile-menu-open {
        overflow: hidden;
    }

    #main-header {
        opacity: 1 !important;
    }

    .header-container {
        padding: 0 1rem;
    }

    .company-name {
        font-size: 0.75rem;
        max-width: 48vw;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .mobile-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .mobile-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .mobile-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-menu {
        width: min(86vw, 380px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .nav-links {
        width: 100%;
    }

    .nav-links li,
    .nav-links a {
        width: 100%;
    }

    .dropdown-content,
    .nested-dropdown-content {
        display: none;
        position: static;
        transform: none;
        box-shadow: none;
        border: 1px solid var(--border-color);
        background: rgba(255, 255, 255, 0.04);
        margin-top: 0.75rem;
        width: 100%;
        min-width: 0;
        padding: 0.35rem 0;
    }

    .dropdown.is-open > .dropdown-content,
    .nested-dropdown.is-open > .nested-dropdown-content {
        display: block;
    }

    .dropdown:hover .dropdown-content,
    .nested-dropdown:hover > .nested-dropdown-content {
        display: none;
    }

    .dropdown.is-open:hover > .dropdown-content,
    .nested-dropdown.is-open:hover > .nested-dropdown-content {
        display: block;
    }

    .dropdown-content a,
    .nested-dropdown-content a {
        padding: 0.85rem 1rem;
    }

    .dropdown-bridge {
        display: none;
    }

    .horizontal-scroll-section {
        height: auto;
    }

    .sticky-wrapper {
        position: relative;
        height: auto;
        width: 100%;
        overflow: visible;
        display: block;
    }

    .service-grid {
        display: grid;
        width: 100%;
        height: auto;
        transform: none !important;
    }

    .service-card {
        width: 100%;
        min-height: 75vh;
        height: auto;
        padding: 6rem 1rem;
    }

    .parallax-bg {
        left: 0;
        width: 100%;
        transform: none !important;
    }

    .lab-container {
        padding: calc(var(--header-height) + 2rem) 1rem 4rem;
    }

    .lab-header {
        margin-bottom: 2rem;
    }

    .lab-header p {
        font-size: 0.95rem;
    }

    .lab-intro,
    section.lab-intro {
        padding: 1rem !important;
        font-size: 0.85rem !important;
    }

    .tabs {
        gap: 0.35rem;
        padding-bottom: 0.25rem;
    }

    .tab-btn {
        padding: 0.8rem 1rem;
        font-size: 0.7rem;
    }

    .converter-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .input-group {
        margin-bottom: 1.25rem;
    }

    .input-group input,
    .input-group select,
    .input-group textarea,
    .conv-input-group input {
        min-height: 44px;
    }

    .result-grid {
        grid-template-columns: 1fr;
    }

    .estimator-results,
    .preview-panel,
    .control-panel {
        padding: 1.25rem;
    }

    .preview-panel[style] {
        padding: 1.25rem !important;
    }

    .document-lab .control-panel {
        max-height: none;
    }

    .editor-viewport {
        width: 100%;
        max-width: 100%;
        min-height: 70vh;
        padding: 0.75rem;
    }

    #document-canvas {
        width: var(--a4-width);
        height: var(--a4-height);
        min-width: var(--a4-width);
    }

    #visuals-canvas {
        height: 380px !important;
    }
}

@media screen and (max-width: 480px) {
    .modal-content {
        padding: 2rem 1.25rem;
        margin: 0 1rem;
    }

    .hero-section h1 {
        font-size: 2.6rem !important;
    }

    .card-content {
        padding: 1.5rem;
        margin: 0;
    }

    .card-content h3 {
        font-size: 1.55rem;
        letter-spacing: -1px;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .footer-links a {
        margin: 0;
    }
}

/* Print Styles */
@media print {
    #main-header, #main-footer, #progress-ruler, .scanlines, .mobile-toggle {
        display: none !important;
    }
    body {
        background: #fff;
        color: #000;
    }
    .lab-container {
        padding: 0;
    }
}