/**
 * Modern High-Tech Design System & Global Stylesheet
 */

:root {
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

    /* Theme: Dark (Default) */
    --bg-primary: #0a0d14;
    --bg-secondary: #111622;
    --bg-tertiary: #182030;
    --bg-card: rgba(22, 29, 44, 0.75);
    --bg-card-hover: rgba(28, 38, 58, 0.85);
    --bg-surface: #1e283d;
    --bg-elevated: #24314c;

    --text-primary: #f0f4fc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-inverse: #0a0d14;

    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.16);
    --border-accent: rgba(56, 189, 248, 0.3);

    --primary: #38bdf8;
    --primary-hover: #0284c7;
    --primary-glow: rgba(56, 189, 248, 0.25);
    --accent: #818cf8;
    --accent-glow: rgba(129, 140, 248, 0.25);
    
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.25);
    --warning: #f59e0b;
    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.25);
    --info: #06b6d4;

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 24px var(--primary-glow);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --header-height: 70px;
    --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-card-hover: #ffffff;
    --bg-surface: #e2e8f0;
    --bg-elevated: #cbd5e1;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-inverse: #f8fafc;

    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(0, 0, 0, 0.16);
    --border-accent: rgba(2, 132, 199, 0.3);

    --primary: #0284c7;
    --primary-hover: #0369a1;
    --primary-glow: rgba(2, 132, 199, 0.2);
    --accent: #6366f1;

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.5;
    background-image: 
        radial-gradient(ellipse at 50% 0%, rgba(56, 189, 248, 0.07) 0%, transparent 60%),
        radial-gradient(circle at 90% 20%, rgba(129, 140, 248, 0.04) 0%, transparent 40%);
    background-attachment: fixed;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
    color: inherit;
    transition: var(--transition);
}

input, select, textarea {
    font-family: inherit;
    color: inherit;
}

svg {
    display: inline-block;
    vertical-align: middle;
}

.icon {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

/* Layout Container */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header Styles */
.site-header {
   
    top: 0;
    z-index: 100;
    height: var(--header-height);
    background: rgba(10, 13, 20, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .site-header {
    background: rgba(255, 255, 255, 0.85);
}

.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

/* Brand */
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
}

.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.brand-icon svg {
    width: 22px;
    height: 22px;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.brand-accent {
    color: var(--primary);
}

.brand-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-list {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 6px;
    height: 100%;
}

.nav-item {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 14px;
    border-radius: var(--radius-md);
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

.nav-link:hover, .nav-item:hover > .nav-link {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active, .nav-item.active-category > .nav-link {
    color: var(--primary);
    background: rgba(56, 189, 248, 0.1);
}

.nav-icon {
    width: 17px;
    height: 17px;
}

.dropdown-arrow {
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
}

.nav-item:hover .dropdown-arrow {
    transform: rotate(180deg);
}

/* Dropdown Menus */
.dropdown-menu {
    position: absolute;
    top: calc(100% - 6px);
    left: 0;
    min-width: 280px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    z-index: 110;
    pointer-events: none;
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.dropdown-header {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    padding: 6px 12px 10px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 8px;
}

.dropdown-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: 480px;
    overflow-y: auto;
}

/* Mega Camera Dropdown */
.mega-camera {
    width: 680px;
    left: -120px;
}

.dropdown-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
    max-height: 480px;
    overflow-y: auto;
    padding-right: 4px;
}

.dropdown-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 10px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
    transform: translateX(2px);
}

.dropdown-item.active {
    background: rgba(56, 189, 248, 0.12);
    border-left: 3px solid var(--primary);
}

.dropdown-item-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.dropdown-item-icon svg {
    width: 17px;
    height: 17px;
}

.dropdown-item-info {
    flex: 1;
    min-width: 0;
}

.dropdown-item-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.dropdown-item-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 7px;
    border-radius: var(--radius-full);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    line-height: 1.2;
}

.badge-popular { background: rgba(56, 189, 248, 0.15); color: var(--primary); border: 1px solid rgba(56, 189, 248, 0.3); }
.badge-pro { background: rgba(245, 158, 11, 0.15); color: var(--warning); border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-diagnostic, .badge-hardware { background: rgba(129, 140, 248, 0.15); color: var(--accent); border: 1px solid rgba(129, 140, 248, 0.3); }
.badge-recorder, .badge-benchmark { background: rgba(239, 68, 68, 0.15); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.3); }
.badge-creative, .badge-fun { background: rgba(16, 185, 129, 0.15); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-utility, .badge-essential { background: var(--bg-surface); color: var(--text-secondary); }

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: var(--transition);
}

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

/* Theme Toggle */
.theme-icon-light { display: none; }
[data-theme="light"] .theme-icon-dark { display: none; }
[data-theme="light"] .theme-icon-light { display: block; }

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 38px;
    height: 38px;
    padding: 8px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.mobile-menu-toggle .bar {
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Mobile Navigation Drawer Base (Hidden on Desktop) */
body.mobile-nav-open {
    overflow: hidden !important;
}

.mobile-drawer-backdrop,
.mobile-drawer {
    display: none;
}

/* Main Content Area */
.main-content {
    flex: 1;
    padding: 32px 0 60px;
}

/* Tool Header Section */
.tool-hero {
    margin-bottom: 24px;
}

.tool-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.tool-breadcrumbs a:hover {
    color: var(--primary);
}

.tool-hero-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.tool-hero-title-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.tool-hero-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(129, 140, 248, 0.15));
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    box-shadow: 0 4px 16px var(--primary-glow);
}

.tool-hero-icon svg {
    width: 26px;
    height: 26px;
}

.tool-title {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.6px;
    color: var(--text-primary);
}

.tool-hero-desc {
    color: var(--text-secondary);
    font-size: 0.98rem;
    max-width: 860px;
    margin-top: 6px;
    line-height: 1.6;
}

.tool-hero-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

.btn svg {
    width: 17px;
    height: 17px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #0284c7);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0284c7, #0369a1);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-surface);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--danger-glow);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--success-glow);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.btn-sm svg {
    width: 14px;
    height: 14px;
}

/* Tool Workspace Card */
.tool-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-bottom: 28px;
    transition: border-color 0.2s ease;
}

.tool-card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.02);
}

.tool-card-title {
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tool-card-body {
    padding: 24px;
}

/* Stats Badges / Status Chips */
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
}

.status-active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-inactive {
    background: rgba(100, 116, 139, 0.15);
    color: var(--text-muted);
    border: 1px solid rgba(100, 116, 139, 0.3);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
}

.status-active .status-dot {
    box-shadow: 0 0 8px currentColor;
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

/* Form Controls & Inputs */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-select, .form-input {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    font-size: 0.88rem;
    color: var(--text-primary);
    transition: var(--transition);
    outline: none;
}

.form-select:focus, .form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Sliders */
.form-range {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: var(--bg-surface);
    border-radius: 3px;
    outline: none;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 2px 6px var(--primary-glow);
    transition: transform 0.1s ease;
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Toast Container */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    pointer-events: auto;
    padding: 12px 18px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    font-size: 0.88rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    transition: opacity 0.2s, transform 0.2s;
}

.toast-success { border-left: 4px solid var(--success); color: var(--text-primary); }
.toast-error { border-left: 4px solid var(--danger); color: var(--text-primary); }
.toast-info { border-left: 4px solid var(--primary); color: var(--text-primary); }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Footer */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
    margin-top: auto;
}

.footer-top {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.privacy-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: var(--radius-full);
    font-size: 0.76rem;
    color: var(--success);
    font-weight: 600;
}

.privacy-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
}

.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.footer-col-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.footer-col-icon {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-links a {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--primary);
    transform: translateX(2px);
}

.footer-more-link {
    color: var(--primary) !important;
    font-weight: 600;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-legal-links {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.82rem;
}

.footer-legal-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.15s ease;
}

.footer-legal-links a:hover {
    color: var(--primary);
    text-decoration: underline;
}

.footer-legal-links .sep {
    color: var(--border-color);
    font-size: 0.7rem;
}

.footer-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.meta-tag {
    padding: 3px 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.72rem;
}

/* Responsive Media Queries */
@media (max-width: 1100px) {
    .footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .footer-links-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .mega-camera {
        width: 520px;
        left: -160px;
    }
}

@media (max-width: 900px) {
    .main-nav {
        display: none !important;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.open .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

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

    .mobile-menu-toggle.open .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* Mobile Drawer Backdrop */
    .mobile-drawer-backdrop {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.75);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        z-index: 998;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.25s ease, visibility 0.25s;
    }

    .mobile-drawer-backdrop.open {
        opacity: 1;
        visibility: visible;
    }

    /* Mobile Drawer Main Container - NO SCROLLBAR */
    .mobile-drawer {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background: var(--bg-primary);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-16px);
        transition: transform 0.26s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.22s ease, visibility 0.26s;
        scrollbar-width: none !important;
        -ms-overflow-style: none !important;
    }

    .mobile-drawer.open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .mobile-drawer,
    .mobile-drawer * {
        scrollbar-width: none !important;
        -ms-overflow-style: none !important;
    }

    .mobile-drawer::-webkit-scrollbar,
    .mobile-drawer *::-webkit-scrollbar {
        display: none !important;
        width: 0 !important;
        height: 0 !important;
    }

    /* Mobile Drawer Header */
    .mobile-drawer-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 12px 16px;
        background: rgba(13, 20, 36, 0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border-color);
        flex-shrink: 0;
    }

    .mobile-drawer-title {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.95rem;
        font-weight: 700;
        color: var(--text-primary);
    }

    .mobile-drawer-title svg {
        width: 18px;
        height: 18px;
        color: var(--primary);
    }

    .mobile-drawer-close {
        width: 34px;
        height: 34px;
        border-radius: 50%;
        background: var(--bg-tertiary);
        border: 1px solid var(--border-color);
        color: var(--text-secondary);
        font-size: 1.4rem;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: var(--transition);
        line-height: 1;
        padding-bottom: 2px;
    }

    .mobile-drawer-close:active {
        background: var(--border-hover);
        color: var(--primary);
        transform: scale(0.92);
    }

    /* Mobile Drawer Body */
    .mobile-drawer-body {
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 14px 14px 20px;
        display: flex;
        flex-direction: column;
        gap: 12px;
        scrollbar-width: none !important;
        -ms-overflow-style: none !important;
    }

    /* Featured Home Card */
    .mobile-home-card {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 14px;
        background: linear-gradient(135deg, rgba(0, 229, 255, 0.12) 0%, rgba(13, 20, 36, 0.9) 100%);
        border: 1px solid rgba(0, 229, 255, 0.35);
        border-radius: var(--radius-lg);
        text-decoration: none;
        color: var(--text-primary);
        transition: transform 0.15s ease, border-color 0.15s ease;
        flex-shrink: 0;
    }

    .mobile-home-card:active {
        transform: scale(0.98);
        background: linear-gradient(135deg, rgba(0, 229, 255, 0.2) 0%, rgba(13, 20, 36, 0.95) 100%);
    }

    .mobile-home-card.active {
        border-color: var(--primary);
        box-shadow: 0 0 16px rgba(0, 229, 255, 0.25);
    }

    .mobile-home-icon {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: rgba(0, 229, 255, 0.18);
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        border: 1px solid rgba(0, 229, 255, 0.4);
    }

    .mobile-home-icon svg {
        width: 20px;
        height: 20px;
    }

    .mobile-home-info {
        flex: 1;
        min-width: 0;
    }

    .mobile-home-title {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.96rem;
        font-weight: 700;
        color: var(--text-primary);
    }

    .mobile-home-desc {
        font-size: 0.78rem;
        color: var(--text-muted);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        margin-top: 2px;
    }

    .mobile-home-arrow {
        width: 18px;
        height: 18px;
        color: var(--primary);
        flex-shrink: 0;
    }

    /* Tools Content & App Grid - ALL Directly Displayed */
    .mobile-tools-content {
        display: flex;
        flex-direction: column;
        gap: 16px;
        scrollbar-width: none !important;
        -ms-overflow-style: none !important;
    }

    .mobile-category-section {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .mobile-section-heading {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 8px 4px 4px;
        font-size: 0.84rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.8px;
        color: var(--text-muted);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .mobile-heading-icon svg {
        width: 15px;
        height: 15px;
        color: var(--primary);
    }

    .mobile-heading-badge {
        background: var(--bg-tertiary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-full);
        padding: 1px 7px;
        font-size: 0.7rem;
        font-family: var(--font-mono);
    }

    .mobile-tools-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .mobile-tool-card {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px 12px;
        min-height: 52px;
        background: var(--bg-tertiary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        text-decoration: none;
        color: var(--text-primary);
        position: relative;
        transition: all 0.15s ease;
        overflow: hidden;
    }

    .mobile-tool-card:active {
        transform: scale(0.97);
        background: var(--border-hover);
    }

    .mobile-tool-card.active {
        background: rgba(0, 229, 255, 0.12);
        border-color: var(--primary);
        box-shadow: 0 0 12px rgba(0, 229, 255, 0.22);
    }

    .mobile-tool-card.active .mobile-tool-name {
        color: var(--primary);
    }

    .mobile-tool-icon {
        width: 32px;
        height: 32px;
        border-radius: var(--radius-sm);
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--primary);
        flex-shrink: 0;
    }

    .mobile-tool-icon svg {
        width: 16px;
        height: 16px;
    }

    .mobile-tool-card.active .mobile-tool-icon {
        background: var(--primary);
        color: #050811;
        border-color: var(--primary);
    }

    .mobile-tool-name {
        font-size: 0.82rem;
        font-weight: 600;
        line-height: 1.25;
        flex: 1;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .mobile-tool-badge {
        position: absolute;
        top: 3px;
        right: 4px;
        font-size: 0.6rem;
        padding: 1px 5px;
        border-radius: 4px;
        line-height: 1.2;
    }

    /* Mobile Drawer Quick Actions Footer */
    .mobile-drawer-footer {
        display: flex;
        gap: 10px;
        padding: 12px 16px;
        background: rgba(13, 20, 36, 0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-top: 1px solid var(--border-color);
        flex-shrink: 0;
    }

    .mobile-footer-btn {
        flex: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 6px;
        padding: 10px;
        font-size: 0.85rem;
    }
}

@media (max-width: 768px) {
    /* Global Container */
    .container {
        padding: 0 14px;
    }

    /* Site Header */
    .site-header {
        height: 58px;
    }
    .brand-icon {
        width: 32px;
        height: 32px;
    }
    .brand-icon svg {
        width: 18px;
        height: 18px;
    }
    .brand-title {
        font-size: 1.15rem;
    }
    .brand-sub {
        display: none;
    }
    .header-actions {
        gap: 6px;
    }
    .btn-icon {
        width: 36px;
        height: 36px;
    }
    .main-content {
        padding: 16px 0 40px;
    }

    /* Tool Hero */
    .tool-hero {
        padding: 16px;
        margin-bottom: 16px;
        border-radius: var(--radius-md);
    }
    .tool-breadcrumbs {
        font-size: 0.78rem;
        margin-bottom: 8px;
    }
    .tool-hero-top {
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
    }
    .tool-hero-title-group {
        align-items: flex-start;
        gap: 12px;
    }
    .tool-hero-icon {
        width: 42px;
        height: 42px;
        flex-shrink: 0;
    }
    .tool-hero-icon svg {
        width: 22px;
        height: 22px;
    }
    .tool-title {
        font-size: 1.35rem;
        line-height: 1.25;
    }
    .tool-hero-desc {
        font-size: 0.85rem;
        line-height: 1.5;
        margin-top: 4px;
    }
    .tool-hero-actions {
        display: flex;
        flex-wrap: wrap;
        width: 100%;
        gap: 8px;
    }
    .tool-hero-actions > .btn {
        flex: 1 1 calc(50% - 4px);
        justify-content: center;
        padding: 10px 12px;
        font-size: 0.88rem;
    }
    .tool-hero-actions > .btn-primary:first-child,
    .tool-hero-actions > button[id*="Start"],
    .tool-hero-actions > button[id*="Record"],
    .tool-hero-actions > button[id*="Stop"] {
        flex: 1 1 100%;
        justify-content: center;
        padding: 11px 16px;
        font-size: 0.95rem;
    }

    /* Live Camera Card */
    .tool-card {
        margin-bottom: 16px;
        border-radius: var(--radius-md);
    }
    .tool-card-header {
        padding: 12px 14px;
        flex-wrap: wrap;
        gap: 8px;
    }
    .tool-card-title {
        font-size: 0.92rem;
        flex-wrap: wrap;
        gap: 6px;
    }
    .tool-card-actions {
        display: flex;
        gap: 6px;
    }
    .stage-hud-badge {
        font-size: 0.72rem;
        padding: 3px 8px;
    }
    .tool-card-body {
        padding: 12px !important;
    }

    /* Video Stage & Camera Placeholder */
    .video-stage-container {
        min-height: 280px;
        border-radius: var(--radius-md);
    }
    .video-wrapper {
        min-height: 280px;
    }
    .camera-placeholder {
        min-height: 280px;
        padding: 24px 12px;
        gap: 12px;
    }
    .camera-placeholder-icon {
        width: 56px;
        height: 56px;
    }
    .camera-placeholder-icon svg {
        width: 28px;
        height: 28px;
    }
    .camera-placeholder h3 {
        font-size: 1.12rem;
    }
    .camera-placeholder p {
        font-size: 0.82rem;
        line-height: 1.45;
        padding: 0 4px;
    }
    .camera-placeholder .btn {
        width: 100%;
        max-width: 260px;
        padding: 10px 16px;
        font-size: 0.9rem;
    }

    /* Stage HUD */
    .stage-top-hud {
        top: 8px;
        left: 8px;
        right: 8px;
    }
    .stage-top-hud .btn-sm {
        padding: 4px 8px;
        font-size: 0.75rem;
    }

    /* Control Panel */
    .control-panel {
        padding: 12px;
        margin-top: 14px;
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    .control-group {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        align-items: stretch;
        gap: 8px;
    }
    .control-group .btn-sm,
    .control-group > .btn {
        flex: 1 1 calc(50% - 6px);
        justify-content: center;
        padding: 8px 10px;
        font-size: 0.8rem;
        text-align: center;
    }
    .control-group .form-group,
    .form-group-select,
    .form-group-slider {
        width: 100% !important;
        min-width: 0 !important;
        flex: 1 1 100%;
    }
    .form-select,
    .form-input {
        width: 100% !important;
        min-width: 0 !important;
        font-size: 0.85rem;
        padding: 8px 10px;
    }
    .control-group .form-range {
        width: 100% !important;
    }
    .control-group label {
        font-size: 0.84rem;
    }
    .btn-reset-adjust {
        width: 100%;
        justify-content: center;
        margin-top: 4px;
        padding: 8px 12px;
    }

    /* Real-Time Metrics Grid */
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        margin-top: 14px;
    }
    .metric-card {
        padding: 10px;
        border-radius: var(--radius-sm);
        gap: 2px;
    }
    .metric-label {
        font-size: 0.68rem;
    }
    .metric-value {
        font-size: 1.15rem;
    }
    .metric-unit {
        font-size: 0.72rem;
    }
    .metric-sub {
        font-size: 0.68rem;
    }

    /* Diagnostics Checklist Card */
    .diagnostics-checklist-card {
        margin-top: 16px;
        padding: 14px;
    }
    .checklist-header {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    .checklist-header .btn {
        width: 100%;
        justify-content: center;
    }
    .checklist-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    /* FAQ Grid */
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* Footer */
    .footer-links-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    .tool-hero {
        padding: 14px 10px;
    }
    .tool-title {
        font-size: 1.25rem;
    }
    .video-stage-container {
        min-height: 230px;
    }
    .video-wrapper {
        min-height: 230px;
    }
    .camera-placeholder {
        min-height: 230px;
        padding: 16px 6px;
        gap: 10px;
    }
    .camera-placeholder-icon {
        width: 48px;
        height: 48px;
    }
    .camera-placeholder-icon svg {
        width: 24px;
        height: 24px;
    }
    .camera-placeholder h3 {
        font-size: 1.05rem;
    }
    .camera-placeholder p {
        font-size: 0.78rem;
    }
    .metrics-grid {
        gap: 6px;
    }
    .metric-card {
        padding: 8px 6px;
    }
    .metric-value {
        font-size: 1.02rem;
    }
    .footer-links-grid {
        grid-template-columns: 1fr;
    }
    .mobile-tools-grid {
        gap: 6px;
    }
    .mobile-tool-card {
        padding: 8px 10px;
        min-height: 48px;
        gap: 8px;
    }
    .mobile-tool-icon {
        width: 28px;
        height: 28px;
    }
    .mobile-tool-icon svg {
        width: 14px;
        height: 14px;
    }
    .mobile-tool-name {
        font-size: 0.78rem;
    }
}

@media (max-width: 340px) {
    .mobile-tools-grid {
        grid-template-columns: 1fr;
    }
}