/* ==========================================================================
   SynthID Shield v2.0 — Modern Deep-Tech / Cyberpunk UI Styles
   ========================================================================== */

:root,
[data-theme="dark"] {
    color-scheme: dark;
    --bg-base: #080b12;
    --bg-card: rgba(15, 21, 37, 0.75);
    --bg-card-hover: rgba(22, 30, 52, 0.85);
    --card-border: rgba(0, 242, 254, 0.12);
    --card-border-active: rgba(0, 242, 254, 0.45);
    
    --accent-cyan: #00f2fe;
    --accent-purple: #7928ca;
    --accent-magenta: #ff007a;
    --accent-green: #00ff88;
    --accent-amber: #ffb300;
    --accent-red: #ff2a55;

    --text-main: #f0f4fc;
    --text-muted: #8e9bb5;
    --text-dim: #5c6882;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    --shadow-glow-cyan: 0 0 25px rgba(0, 242, 254, 0.25);
    --shadow-glow-purple: 0 0 25px rgba(121, 40, 202, 0.25);
    --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);

    /* Component specifics */
    --card-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    --select-bg: #0d1322;
    --select-option-bg: #101625;
    --code-bg: #05070d;
    --preview-canvas-bg: #05070d;
    --textarea-bg: rgba(10, 14, 25, 0.6);
    --textarea-readonly-bg: rgba(10, 14, 25, 0.3);
    --glow-opacity: 0.28;

    /* Logo specifics */
    --logo-accent-1: #00f2fe;
    --logo-accent-2: #7928ca;
    --logo-fill-1: rgba(0, 242, 254, 0.18);
    --logo-fill-2: rgba(121, 40, 202, 0.18);
    --logo-check-color: #00f2fe;
}

[data-theme="light"] {
    color-scheme: light;
    --bg-base: #f0f4f9;
    --bg-card: rgba(255, 255, 255, 0.88);
    --bg-card-hover: rgba(255, 255, 255, 0.98);
    --card-border: rgba(14, 165, 233, 0.18);
    --card-border-active: rgba(14, 165, 233, 0.55);
    
    --accent-cyan: #0284c7;
    --accent-purple: #7c3aed;
    --accent-magenta: #e11d48;
    --accent-green: #059669;
    --accent-amber: #d97706;
    --accent-red: #e11d48;

    --text-main: #0f172a;
    --text-muted: #475569;
    --text-dim: #64748b;

    --shadow-glow-cyan: 0 4px 20px rgba(2, 132, 199, 0.18);
    --shadow-glow-purple: 0 4px 20px rgba(124, 58, 237, 0.18);

    /* Component specifics in light theme */
    --card-shadow: 0 10px 30px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
    --select-bg: #ffffff;
    --select-option-bg: #ffffff;
    --code-bg: #0f172a;
    --preview-canvas-bg: #0b1120;
    --textarea-bg: rgba(255, 255, 255, 0.92);
    --textarea-readonly-bg: rgba(241, 245, 249, 0.85);
    --glow-opacity: 0.10;

    /* Logo specifics in light theme */
    --logo-accent-1: #0284c7;
    --logo-accent-2: #4f46e5;
    --logo-fill-1: rgba(2, 132, 199, 0.16);
    --logo-fill-2: rgba(79, 70, 229, 0.16);
    --logo-check-color: #0284c7;
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-main);
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    line-height: 1.5;
    transition: background-color 0.35s cubic-bezier(0.16, 1, 0.3, 1), color 0.25s ease;
}

/* Ambient Background Glows */
.ambient-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(140px);
    pointer-events: none;
    z-index: 0;
    opacity: var(--glow-opacity);
    animation: floatGlow 18s ease-in-out infinite alternate;
    transition: opacity 0.5s ease;
}

.glow-1 {
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #00f2fe 0%, #7928ca 80%);
}

.glow-2 {
    bottom: -15%;
    right: -10%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, #7928ca 0%, #ff007a 80%);
    animation-delay: -9s;
}

.glow-3 {
    top: 40%;
    left: 45%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.4) 0%, transparent 70%);
}

@keyframes floatGlow {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(40px, 30px) scale(1.08); }
    100% { transform: translate(-30px, -20px) scale(0.95); }
}

/* Rolls-Royce Starlight Headliner (Dark Theme Only) */
.starlight-sky {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    opacity: 1;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] .starlight-sky {
    opacity: 0;
    visibility: hidden;
}

/* Quantum Neural Grid & Interactive Matrix (Light Theme Only) */
.quantum-grid-sky {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] .quantum-grid-sky {
    opacity: 1;
    visibility: visible;
}

/* Layout Container */
.app-container {
    position: relative;
    z-index: 1;
    max-width: 1380px;
    margin: 0 auto;
    padding: 24px 32px 48px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--card-border);
    margin-bottom: 28px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: default;
}

.brand-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid var(--card-border-active);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow-cyan);
    transition: var(--transition-smooth);
}

.brand-icon svg {
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.3s ease;
}

.brand:hover .brand-icon svg {
    transform: scale(1.08);
}

.logo-shield,
.logo-check {
    transition: stroke 0.3s ease, fill 0.3s ease;
}

.brand-text h1 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #9b51e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tagline {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 2px;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.header-badges {
    display: flex;
    gap: 12px;
    align-items: center;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
}

.live-status {
    color: var(--accent-green);
    border-color: rgba(0, 255, 136, 0.3);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.25); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.tech-badge {
    color: var(--accent-cyan);
    border-color: rgba(0, 242, 254, 0.3);
}

/* =============================================================================
   CUSTOM NON-STANDARD THEME TOGGLE SWITCH: CELESTIAL QUANTUM CORE
   ============================================================================= */
.theme-switch-wrap {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.02);
    padding: 4px 8px 4px 5px;
    border-radius: var(--radius-full);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
    user-select: none;
}

.theme-switch-wrap:hover {
    border-color: var(--card-border-active);
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.1);
}

.theme-toggle-btn {
    appearance: none;
    -webkit-appearance: none;
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    outline: none;
    border-radius: var(--radius-full);
    display: block;
    position: relative;
    touch-action: manipulation;
}

.theme-toggle-btn:focus-visible {
    box-shadow: 0 0 0 2px var(--bg-base), 0 0 0 4px var(--accent-cyan);
}

/* Track capsule */
.theme-switch-track {
    display: block;
    width: 74px;
    height: 36px;
    border-radius: 9999px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: linear-gradient(135deg, #050811 0%, #0d1424 50%, #171b38 100%);
    border: 1.5px solid rgba(0, 242, 254, 0.35);
    box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.75), 0 2px 10px rgba(0, 0, 0, 0.3), 0 0 16px rgba(0, 242, 254, 0.12);
    transition: all 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark mode starfield inside track */
.track-stars {
    position: absolute;
    inset: 0;
    pointer-events: none;
    transition: opacity 0.4s ease, transform 0.4s ease;
    opacity: 1;
}

.twinkle-star {
    position: absolute;
    border-radius: 50%;
    background-color: #e0f2fe;
    box-shadow: 0 0 4px #00f2fe;
}

.twinkle-star.s-1 {
    top: 7px;
    left: 12px;
    width: 2.5px;
    height: 2.5px;
    animation: starPulse 2.8s ease-in-out infinite;
}

.twinkle-star.s-2 {
    top: 22px;
    left: 20px;
    width: 2px;
    height: 2px;
    animation: starPulse 3.4s ease-in-out 0.8s infinite;
}

.twinkle-star.s-3 {
    top: 11px;
    left: 28px;
    width: 3px;
    height: 3px;
    animation: starPulse 2.2s ease-in-out 1.5s infinite;
}

.twinkle-star.s-4 {
    top: 24px;
    left: 8px;
    width: 1.5px;
    height: 1.5px;
    animation: starPulse 4s ease-in-out 0.4s infinite;
}

@keyframes starPulse {
    0%, 100% { opacity: 0.3; transform: scale(0.85); }
    50% { opacity: 1; transform: scale(1.3); filter: drop-shadow(0 0 3px #00f2fe); }
}

/* Light mode aurora/cloud inside track */
.track-aurora {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 243, 199, 0.95) 0%, rgba(125, 211, 252, 0.65) 50%, rgba(56, 189, 248, 0) 80%);
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.45s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

/* Track side icons (Sun on left, Moon on right) */
.track-glyph {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 1;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.track-glyph.glyph-sun {
    left: 10px;
    color: rgba(254, 240, 138, 0.35);
    filter: drop-shadow(0 0 2px transparent);
}

.track-glyph.glyph-moon {
    right: 10px;
    color: #a5f3fc;
    filter: drop-shadow(0 0 6px rgba(0, 242, 254, 0.7));
}

/* 3D Celestial Thumb (Sphere) */
.theme-switch-thumb {
    position: absolute;
    top: 2.5px;
    left: 3px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    z-index: 2;
    cursor: pointer;
    transform: translateX(40px) rotate(0deg);
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.4s ease,
                background 0.4s ease;
    /* Dark Mode: 3D Bioluminescent Moon */
    background: radial-gradient(circle at 35% 30%, #f1f5f9 0%, #94a3b8 45%, #475569 80%, #1e293b 100%);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.7),
                0 0 16px rgba(0, 242, 254, 0.55),
                inset -2px -2px 4px rgba(0, 0, 0, 0.7),
                inset 1.5px 1.5px 3px rgba(255, 255, 255, 0.8);
}

/* Moon face details */
.thumb-moon-face {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.lunar-crater {
    position: absolute;
    border-radius: 50%;
    background: #64748b;
    box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.6), 0 0.5px 1px rgba(255, 255, 255, 0.4);
}

.lunar-crater.c-1 {
    top: 6px;
    left: 8px;
    width: 6px;
    height: 6px;
}

.lunar-crater.c-2 {
    top: 15px;
    left: 14px;
    width: 5px;
    height: 5px;
}

.lunar-crater.c-3 {
    top: 17px;
    left: 6px;
    width: 3.5px;
    height: 3.5px;
}

/* Sun face details */
.thumb-sun-face {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.solar-disk {
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

.solar-corona {
    position: absolute;
    inset: -5px;
    pointer-events: none;
    animation: coronaSpin 14s linear infinite;
}

.solar-corona i {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 2px;
    margin-top: -1px;
    margin-left: -50%;
    background: linear-gradient(90deg, #f59e0b 0%, transparent 22%, transparent 78%, #f59e0b 100%);
    border-radius: 2px;
}

.solar-corona i:nth-child(2) { transform: rotate(45deg); }
.solar-corona i:nth-child(3) { transform: rotate(90deg); }
.solar-corona i:nth-child(4) { transform: rotate(135deg); }

@keyframes coronaSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Click Shockwave Effect */
.theme-switch-track::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 9999px;
    border: 2px solid var(--accent-cyan);
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
    transition: transform 0.4s ease-out, opacity 0.4s ease-out;
}

.theme-toggle-btn.toggled .theme-switch-track::after {
    opacity: 0.85;
    transform: scale(1.15);
    transition: transform 0s, opacity 0s;
}

/* HUD Pill */
.theme-hud-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 11px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.6px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    transition: var(--transition-smooth);
}

.hud-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--accent-cyan);
    box-shadow: 0 0 8px var(--accent-cyan);
    transition: all 0.3s ease;
}

/* -----------------------------------------------------------------------------
   LIGHT THEME ACTIVE STATES FOR SWITCH
   ----------------------------------------------------------------------------- */
[data-theme="light"] .theme-switch-track {
    background: linear-gradient(135deg, #38bdf8 0%, #60a5fa 55%, #818cf8 100%);
    border-color: rgba(2, 132, 199, 0.45);
    box-shadow: inset 0 3px 6px rgba(14, 116, 144, 0.25),
                0 2px 10px rgba(2, 132, 199, 0.2),
                0 0 16px rgba(56, 189, 248, 0.35);
}

[data-theme="light"] .track-stars {
    opacity: 0;
    transform: translateY(-8px);
}

[data-theme="light"] .track-aurora {
    opacity: 1;
    transform: translateY(0);
}

[data-theme="light"] .track-glyph.glyph-sun {
    color: #ffffff;
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.95));
}

[data-theme="light"] .track-glyph.glyph-moon {
    color: rgba(255, 255, 255, 0.35);
    filter: none;
}

[data-theme="light"] .theme-switch-thumb {
    transform: translateX(0px) rotate(-360deg);
    /* Light Mode: 3D Radiant Sun */
    background: radial-gradient(circle at 35% 30%, #ffffff 0%, #fef08a 25%, #f59e0b 65%, #d97706 100%);
    box-shadow: 0 2px 10px rgba(180, 83, 9, 0.4),
                0 0 22px rgba(245, 158, 11, 0.85),
                inset -2px -2px 4px rgba(180, 83, 9, 0.6),
                inset 1.5px 1.5px 3px #ffffff;
}

[data-theme="light"] .thumb-moon-face {
    opacity: 0;
}

[data-theme="light"] .thumb-sun-face {
    opacity: 1;
}

[data-theme="light"] .theme-switch-wrap {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(14, 165, 233, 0.25);
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.05);
}

[data-theme="light"] .theme-switch-wrap:hover {
    border-color: rgba(14, 165, 233, 0.5);
    box-shadow: 0 4px 18px rgba(2, 132, 199, 0.15);
}

[data-theme="light"] .theme-hud-pill {
    background: rgba(255, 255, 255, 0.92);
    border-color: rgba(14, 165, 233, 0.25);
    color: #0369a1;
}

[data-theme="light"] .hud-dot {
    background-color: #f59e0b;
    box-shadow: 0 0 8px #f59e0b;
}

/* Tabs */
.nav-tabs {
    display: flex;
    gap: 10px;
    background: rgba(12, 17, 30, 0.6);
    padding: 6px;
    border-radius: var(--radius-md);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    margin-bottom: 28px;
    width: fit-content;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.tab-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
    color: #000;
    background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

/* Tab Contents */
.tab-content {
    display: none;
    animation: fadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

/* Grid Layout */
.grid-layout {
    display: grid;
    grid-template-columns: minmax(0, 460px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
    width: 100%;
    max-width: 100%;
}

@media (max-width: 1024px) {
    .grid-layout {
        grid-template-columns: 1fr;
    }
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(20px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
    min-width: 0;
    box-sizing: border-box;
}

.control-panel,
.preview-panel {
    min-width: 0;
    max-width: 100%;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.badge-subtle {
    font-size: 11px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
    font-weight: 500;
}

.badge-subtle.green {
    background: rgba(0, 255, 136, 0.12);
    color: var(--accent-green);
}

.badge-subtle.red {
    background: rgba(255, 42, 85, 0.12);
    color: var(--accent-red);
}

/* Dropzone */
.dropzone {
    border: 2px dashed var(--card-border);
    border-radius: var(--radius-md);
    background: rgba(0, 242, 254, 0.02);
    padding: 36px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    margin-bottom: 22px;
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent-cyan);
    background: rgba(0, 242, 254, 0.06);
    box-shadow: var(--shadow-glow-cyan);
}

.drop-icon {
    color: var(--accent-cyan);
    margin-bottom: 12px;
}

.drop-title {
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 6px;
}

.accent-link {
    color: var(--accent-cyan);
    text-decoration: underline;
}

.drop-subtitle {
    font-size: 12px;
    color: var(--text-dim);
}

/* Selected File Card */
.file-preview-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border-active);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.file-icon {
    font-size: 24px;
}

.file-meta {
    flex: 1;
    overflow: hidden;
}

.file-name {
    display: block;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-size {
    font-size: 12px;
    color: var(--text-muted);
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
}

.btn-icon:hover {
    color: var(--accent-red);
    background: rgba(255, 42, 85, 0.1);
}

/* Mode Selection Cards */
.section-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.mode-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 22px;
}

.mode-card {
    display: block;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
}

.mode-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(0, 242, 254, 0.3);
}

.mode-card input[type="radio"],
.mode-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.mode-card.active {
    background: rgba(0, 242, 254, 0.06);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.15);
}

.mode-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
    padding-right: 32px;
}

.mode-name {
    font-size: 14px;
    font-weight: 600;
}

.mode-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: var(--radius-full);
}

.mode-badge.green { background: rgba(0, 255, 136, 0.15); color: var(--accent-green); }
.mode-badge.purple { background: rgba(121, 40, 202, 0.2); color: #b76eff; }
.mode-badge.cyan { background: rgba(0, 242, 254, 0.15); color: var(--accent-cyan); }
.mode-badge.amber { background: rgba(255, 179, 0, 0.15); color: var(--accent-amber); }

.mode-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Options Group */
.options-group {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 24px;
    min-width: 0;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 1px solid var(--card-border-active);
    background: rgba(255, 255, 255, 0.04);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    content: "✓";
    color: #000;
    font-size: 12px;
    font-weight: 800;
}

.select-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
    color: var(--text-muted);
    min-width: 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.select-row label {
    flex-shrink: 0;
}

.custom-select {
    background: #0d1322 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2300f2fe' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") no-repeat calc(100% - 12px) center;
    border: 1px solid var(--card-border);
    color: var(--text-main);
    padding: 9px 34px 9px 12px;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 13px;
    outline: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}

.custom-select:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

.custom-select option {
    background: #101625;
    color: #fff;
}

/* Buttons */
.btn {
    width: 100%;
    padding: 14px;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition-smooth);
}

.action-btn-row {
    margin: 18px 0 14px 0;
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    color: #000;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.35);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0, 242, 254, 0.5);
}

.btn-primary:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-sm {
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    border-radius: var(--radius-sm);
    border: 1px solid var(--card-border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-sm:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--card-border-active);
}

.btn-accent {
    background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    color: #000;
    border: none;
    font-weight: 600;
}

.btn-accent:hover {
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
}

/* Spinner */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-top-color: #000;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Results Panel & Empty State */
.result-panel {
    display: flex;
    flex-direction: column;
    min-height: 580px;
}

.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-icon {
    color: var(--text-dim);
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
    max-width: 360px;
    line-height: 1.5;
}

/* Before/After Image Comparison Slider */
.comparison-wrapper {
    position: relative;
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #000;
    margin-bottom: 22px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

.comparison-slider {
    position: relative;
    width: 100%;
    height: 480px;
    overflow: hidden;
    user-select: none;
    cursor: col-resize;
}

.comp-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: #05070d;
}

.comp-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
    pointer-events: none;
}

.comp-badge {
    position: absolute;
    bottom: 14px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    backdrop-filter: blur(8px);
    z-index: 5;
}

.badge-before {
    left: 14px;
    background: rgba(255, 42, 85, 0.3);
    border: 1px solid var(--accent-red);
    color: #ff99aa;
}

.badge-after {
    right: 14px;
    background: rgba(0, 255, 136, 0.3);
    border: 1px solid var(--accent-green);
    color: #99ffd5;
}

.comp-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background: var(--accent-cyan);
    box-shadow: 0 0 12px var(--accent-cyan);
    z-index: 10;
    transform: translateX(-50%);
    cursor: col-resize;
}

.handle-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 1px;
    width: 2px;
    background: #fff;
}

.handle-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #000;
    border: 2px solid var(--accent-cyan);
    box-shadow: var(--shadow-glow-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
}

/* Difference Heatmap Overlay */
.diff-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #05070d;
    z-index: 20;
    display: flex;
    flex-direction: column;
}

.diff-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.diff-legend {
    position: absolute;
    bottom: 14px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 16px;
    background: rgba(10, 14, 25, 0.85);
    border: 1px solid var(--card-border);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 11px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

/* Metrics Row */
.metrics-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.metric-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 14px;
    display: flex;
    flex-direction: column;
}

.metric-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.metric-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 2px;
}

.metric-value.green { color: var(--accent-green); }
.metric-value.cyan { color: var(--accent-cyan); }

.metric-hint {
    font-size: 11px;
    color: var(--text-dim);
}

/* Audit Details */
.audit-details {
    background: rgba(0, 0, 0, 0.25);
    border-radius: var(--radius-md);
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.audit-details h4 {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-muted);
}

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

.audit-list li {
    font-size: 13px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.4;
}

/* 2D FFT Spectral Radar Tab */
.spectral-layout {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.spectral-intro-card p {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 8px;
    line-height: 1.6;
}

.fft-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.fft-card {
    display: flex;
    flex-direction: column;
}

.fft-img-wrap {
    width: 100%;
    height: 380px;
    background: #05070d;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 12px;
    border: 1px solid var(--card-border);
}

.fft-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.fft-caption {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* SynthID-Text Tab */
.text-grid-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    align-items: stretch;
    width: 100%;
    max-width: 100%;
}

@media (max-width: 1024px) {
    .text-grid-layout {
        grid-template-columns: 1fr;
    }
}

.text-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-width: 0;
    box-sizing: border-box;
}

.custom-textarea {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    height: 320px;
    flex: 1;
    min-height: 260px;
    background: rgba(10, 14, 25, 0.6);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    color: var(--text-main);
    padding: 16px;
    font-family: inherit;
    font-size: 14px;
    line-height: 1.6;
    resize: vertical;
    outline: none;
    transition: var(--transition-smooth);
    margin-bottom: 16px;
}

.custom-textarea:focus {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow-cyan);
}

.readonly-textarea {
    background: rgba(10, 14, 25, 0.3);
    border-color: rgba(255, 255, 255, 0.06);
}

.text-controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
    margin-top: auto;
}

.intensity-group {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    min-width: 0;
}

#btn-clean-text {
    width: auto;
    min-width: 220px;
    padding: 12px 20px;
    white-space: nowrap;
}

@media (max-width: 600px) {
    .text-controls-row {
        flex-direction: column;
        align-items: stretch;
    }
    #btn-clean-text {
        width: 100%;
    }
}

.control-label {
    font-size: 13px;
    color: var(--text-muted);
}

.radio-tag {
    cursor: pointer;
    font-size: 12px;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    border: 1px solid var(--card-border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
    transition: var(--transition-smooth);
}

.radio-tag input {
    display: none;
}

.radio-tag.active {
    background: rgba(0, 242, 254, 0.15);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    font-weight: 600;
}

.text-metrics-bar {
    display: flex;
    gap: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 10px 16px;
    margin-bottom: 16px;
}

.t-metric {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.t-label { color: var(--text-muted); }
.t-val { font-family: 'JetBrains Mono', monospace; font-weight: 700; }
.t-val.green { color: var(--accent-green); }
.t-val.cyan { color: var(--accent-cyan); }
.t-sub { font-size: 11px; color: var(--text-dim); }

/* CLI Tab */
.cli-doc-card h3 {
    margin-top: 24px;
    margin-bottom: 10px;
    font-size: 15px;
    color: var(--accent-cyan);
}

.code-block {
    background: #05070d;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 18px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: #9cdcfe;
    overflow-x: auto;
    line-height: 1.6;
}

/* Footer */
.footer {
    margin-top: auto;
    padding-top: 36px;
    text-align: center;
    font-size: 12px;
    color: var(--text-dim);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: rgba(16, 22, 38, 0.95);
    border: 1px solid var(--accent-cyan);
    box-shadow: var(--shadow-glow-cyan);
    color: var(--text-main);
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    z-index: 1000;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-smooth);
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}


/* Select All button */
.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-select-all {
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.3);
    color: var(--accent-cyan);
    font-size: 12px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-main);
}

.btn-select-all:hover {
    background: rgba(0, 242, 254, 0.15);
    border-color: var(--accent-cyan);
}

.btn-select-all.active {
    background: var(--accent-cyan);
    color: var(--bg-deep);
}

/* Checkbox indicator on mode cards */
.mode-card::before {
    content: '';
    position: absolute;
    top: 16px;
    right: 16px;
    width: 20px;
    height: 20px;
    border-radius: 5px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    background: rgba(0, 0, 0, 0.25);
    transition: var(--transition-smooth);
    box-sizing: border-box;
    pointer-events: none;
}

.mode-card.active::before {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.4);
}

.mode-card.active::after {
    content: '✓';
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 14px;
    font-weight: 800;
    color: #0b0f19;
    z-index: 1;
    pointer-events: none;
    line-height: 18px;
}

/* Multi-select hint */
.mode-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: -6px;
    margin-bottom: 14px;
    opacity: 0.7;
}


/* =============================================================================
   BATCH PROCESSING UI (UP TO 25 IMAGES)
   ============================================================================= */
.batch-container {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border-active);
    border-radius: var(--radius-md);
    padding: 14px;
    margin-bottom: 22px;
}

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

.batch-title-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.batch-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-main);
}

.batch-counter {
    font-size: 11px;
    font-weight: 700;
    background: rgba(0, 242, 254, 0.12);
    color: var(--accent-cyan);
    padding: 2px 8px;
    border-radius: 12px;
    border: 1px solid rgba(0, 242, 254, 0.3);
}

.btn-clear-batch {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-smooth);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

.btn-clear-batch:hover {
    color: #ff5252;
    background: rgba(255, 82, 82, 0.1);
}

.batch-progress-box {
    margin-bottom: 12px;
    background: rgba(0, 0, 0, 0.25);
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.batch-progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.batch-progress-track {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
    overflow: hidden;
}

.batch-progress-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), #7928ca);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.batch-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 250px;
    overflow-y: auto;
    padding-right: 4px;
}

.batch-list::-webkit-scrollbar {
    width: 5px;
}
.batch-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

.batch-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.batch-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 242, 254, 0.2);
}

.batch-item.active {
    background: rgba(0, 242, 254, 0.07);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 12px rgba(0, 242, 254, 0.15);
}

.batch-item-num {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    min-width: 18px;
    text-align: center;
}

.batch-thumb {
    width: 36px;
    height: 36px;
    border-radius: 4px;
    object-fit: cover;
    background: #111;
    border: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

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

.batch-item-name {
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

.batch-item-meta {
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    gap: 8px;
    margin-top: 2px;
}

.batch-item-status {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    flex-shrink: 0;
}

.batch-item-status.pending {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
}

.batch-item-status.processing {
    background: rgba(0, 242, 254, 0.15);
    color: var(--accent-cyan);
}

.batch-item-status.done {
    background: rgba(0, 255, 136, 0.15);
    color: #00ff88;
}

.batch-item-status.error {
    background: rgba(255, 82, 82, 0.15);
    color: #ff5252;
}

.batch-item-remove {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 14px;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
    border-radius: 4px;
    transition: var(--transition-smooth);
}

.batch-item-remove:hover {
    color: #ff5252;
    background: rgba(255, 82, 82, 0.15);
}

.btn-zip {
    background: linear-gradient(135deg, #7928ca, #ff0080);
    color: #fff;
    border: none;
}

.btn-zip:hover {
    box-shadow: 0 0 15px rgba(255, 0, 128, 0.4);
}


/* Random Camera Button & Header */
.select-row-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    width: 100%;
}

.btn-random-camera {
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.3);
    color: var(--accent-cyan);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-main);
}

.btn-random-camera:hover {
    background: rgba(0, 242, 254, 0.18);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.25);
    transform: translateY(-1px);
}

.btn-random-camera:active {
    transform: translateY(1px);
}

/* Camera Select Box (Full-width vertical stack to prevent layout overflow) */
.camera-select-box {
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: rgba(0, 242, 254, 0.03);
    border: 1px solid rgba(0, 242, 254, 0.2);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    margin-top: 6px;
    margin-bottom: 8px;
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    overflow: hidden;
}

.camera-select-box .select-row-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
    min-width: 0;
}

.camera-select-box .select-row-header label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.camera-select-box .custom-select {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    padding: 10px 36px 10px 12px;
    background: #0d1322 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2300f2fe' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") no-repeat calc(100% - 12px) center;
    border: 1px solid rgba(0, 242, 254, 0.25);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 13px;
    line-height: 1.4;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}

.camera-select-box .custom-select:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 12px rgba(0, 242, 254, 0.25);
}

.camera-select-box .custom-select option,
.camera-select-box .custom-select optgroup {
    background: #101625;
    color: #fff;
    font-size: 13px;
    padding: 6px 8px;
}

.camera-info-banner {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 12px;
    line-height: 1.45;
    color: #b8c7dc;
    background: rgba(0, 242, 254, 0.05);
    border: 1px solid rgba(0, 242, 254, 0.18);
    border-radius: var(--radius-sm);
    padding: 9px 12px;
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    word-break: break-word;
    overflow-wrap: break-word;
}

.camera-info-banner .banner-icon {
    font-size: 15px;
    flex-shrink: 0;
    margin-top: 1px;
}

.camera-info-banner .banner-text {
    flex: 1;
    min-width: 0;
}

.camera-info-banner .banner-text strong {
    color: var(--accent-cyan);
    display: block;
    margin-bottom: 2px;
    font-weight: 600;
}

/* =============================================================================
   COMPREHENSIVE LIGHT THEME OVERRIDES & COMPONENT STYLES
   ============================================================================= */
[data-theme="light"] .navbar {
    border-bottom-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .brand-icon {
    background: linear-gradient(135deg, #ffffff 0%, #f0f7ff 60%, #e0f2fe 100%);
    border: 1.5px solid rgba(2, 132, 199, 0.4);
    box-shadow: 0 10px 25px rgba(2, 132, 199, 0.16),
                0 2px 6px rgba(15, 23, 42, 0.05),
                inset 0 1px 1px #ffffff;
}

[data-theme="light"] .brand-icon svg {
    filter: drop-shadow(0 2px 4px rgba(2, 132, 199, 0.28));
}

[data-theme="light"] .brand-text h1 {
    color: #0f172a;
}

[data-theme="light"] .gradient-text {
    background: linear-gradient(135deg, #0284c7 0%, #2563eb 45%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

[data-theme="light"] .tagline {
    color: #475569;
    font-weight: 500;
}

[data-theme="light"] .status-badge {
    background: rgba(255, 255, 255, 0.85);
    border-color: rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
}

[data-theme="light"] .live-status {
    color: #059669;
    border-color: rgba(5, 150, 105, 0.3);
}

[data-theme="light"] .tech-badge {
    color: #0284c7;
    border-color: rgba(2, 132, 199, 0.3);
}

[data-theme="light"] .nav-tabs {
    background: rgba(226, 232, 240, 0.75);
    border-color: rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

[data-theme="light"] .tab-btn {
    color: #475569;
}

[data-theme="light"] .tab-btn:hover {
    color: #0f172a;
    background: rgba(255, 255, 255, 0.7);
}

[data-theme="light"] .tab-btn.active {
    color: #ffffff;
    background: linear-gradient(135deg, #0284c7 0%, #38bdf8 100%);
    box-shadow: 0 4px 16px rgba(2, 132, 199, 0.35);
}

[data-theme="light"] .card {
    background: var(--bg-card);
    border-color: var(--card-border);
    box-shadow: var(--card-shadow);
}

[data-theme="light"] .badge-subtle {
    background: rgba(15, 23, 42, 0.06);
    color: #475569;
}

[data-theme="light"] .badge-subtle.green {
    background: rgba(5, 150, 105, 0.12);
    color: #059669;
}

[data-theme="light"] .badge-subtle.red {
    background: rgba(225, 29, 72, 0.12);
    color: #e11d48;
}

[data-theme="light"] .dropzone {
    background: rgba(2, 132, 199, 0.02);
    border-color: rgba(2, 132, 199, 0.25);
}

[data-theme="light"] .dropzone:hover,
[data-theme="light"] .dropzone.dragover {
    border-color: var(--accent-cyan);
    background: rgba(2, 132, 199, 0.06);
    box-shadow: 0 0 25px rgba(2, 132, 199, 0.15);
}

[data-theme="light"] .mode-card {
    background: rgba(255, 255, 255, 0.75);
    border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .mode-card:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(2, 132, 199, 0.35);
}

[data-theme="light"] .mode-card.active {
    background: rgba(2, 132, 199, 0.05);
    border-color: var(--accent-cyan);
    box-shadow: 0 4px 18px rgba(2, 132, 199, 0.12);
}

[data-theme="light"] .mode-card::before {
    background: #ffffff;
    border-color: rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .mode-card.active::before {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

[data-theme="light"] .mode-card.active::after {
    color: #ffffff;
}

[data-theme="light"] .custom-select {
    background-color: #ffffff;
    color: #0f172a;
    border-color: rgba(2, 132, 199, 0.25);
}

[data-theme="light"] .custom-select option,
[data-theme="light"] .custom-select optgroup {
    background-color: #ffffff;
    color: #0f172a;
}

[data-theme="light"] .camera-select-box {
    background: rgba(2, 132, 199, 0.03);
    border-color: rgba(2, 132, 199, 0.18);
}

[data-theme="light"] .camera-info-banner {
    background: rgba(2, 132, 199, 0.05);
    border-color: rgba(2, 132, 199, 0.18);
    color: #334155;
}

[data-theme="light"] .batch-container {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(2, 132, 199, 0.25);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

[data-theme="light"] .batch-item {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(0, 0, 0, 0.07);
}

[data-theme="light"] .batch-item:hover {
    background: #ffffff;
    border-color: rgba(2, 132, 199, 0.35);
}

[data-theme="light"] .batch-item.active {
    background: rgba(2, 132, 199, 0.08);
    border-color: var(--accent-cyan);
    box-shadow: 0 2px 10px rgba(2, 132, 199, 0.12);
}

[data-theme="light"] .batch-progress-box {
    background: rgba(241, 245, 249, 0.85);
    border-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .batch-progress-track {
    background: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .batch-item-status.pending {
    background: rgba(0, 0, 0, 0.06);
    color: #475569;
}

[data-theme="light"] .metric-card {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(0, 0, 0, 0.07);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
}

[data-theme="light"] .audit-details {
    background: rgba(241, 245, 249, 0.75);
    border-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .diff-legend {
    background: rgba(255, 255, 255, 0.92);
    border-color: rgba(0, 0, 0, 0.08);
    color: #0f172a;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .custom-textarea {
    background: rgba(255, 255, 255, 0.92);
    color: #0f172a;
    border-color: rgba(2, 132, 199, 0.25);
}

[data-theme="light"] .readonly-textarea {
    background: rgba(241, 245, 249, 0.85);
    border-color: rgba(0, 0, 0, 0.07);
    color: #1e293b;
}

[data-theme="light"] .text-metrics-bar {
    background: rgba(255, 255, 255, 0.75);
    border-color: rgba(0, 0, 0, 0.07);
}

[data-theme="light"] .radio-tag {
    background: rgba(255, 255, 255, 0.75);
    border-color: rgba(0, 0, 0, 0.1);
    color: #475569;
}

[data-theme="light"] .radio-tag.active {
    background: rgba(2, 132, 199, 0.1);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

[data-theme="light"] .toast {
    background: rgba(255, 255, 255, 0.98);
    border-color: var(--accent-cyan);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.15);
    color: #0f172a;
}

[data-theme="light"] .btn-select-all {
    background: rgba(2, 132, 199, 0.08);
    border-color: rgba(2, 132, 199, 0.3);
    color: var(--accent-cyan);
}

[data-theme="light"] .btn-random-camera {
    background: rgba(2, 132, 199, 0.08);
    border-color: rgba(2, 132, 199, 0.3);
    color: var(--accent-cyan);
}

/* Header Responsiveness */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .header-controls {
        width: 100%;
        justify-content: space-between;
    }

    .theme-switch-wrap {
        margin-left: auto;
    }
}