/* ================================================================
   WhiteScreen.css
   Tool: White Screen Online
   Primary Color: #F59E0B (Amber/Gold — warm, professional, unique)
   Dark Mode: Full support via prefers-color-scheme + [data-theme]
   ================================================================ */

/* ── CSS Custom Properties ─────────────────────────────────────── */
:root {
    --ws-primary:        #F59E0B;
    --ws-primary-dark:   #D97706;
    --ws-primary-light:  #FDE68A;
    --ws-primary-glow:   rgba(245, 158, 11, 0.25);

    --ws-bg:             #F8F9FA;
    --ws-surface:        #FFFFFF;
    --ws-surface-2:      #F1F3F5;
    --ws-border:         #E2E8F0;
    --ws-border-focus:   #F59E0B;

    --ws-text-primary:   #1A202C;
    --ws-text-secondary: #4A5568;
    --ws-text-muted:     #718096;

    --ws-shadow-sm:      0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --ws-shadow-md:      0 4px 16px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.06);
    --ws-shadow-lg:      0 10px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.08);
    --ws-shadow-glow:    0 0 0 3px var(--ws-primary-glow);

    --ws-radius-sm:      6px;
    --ws-radius-md:      12px;
    --ws-radius-lg:      18px;
    --ws-radius-xl:      24px;

    --ws-transition:     all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --ws-transition-slow: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Tokens */
@media (prefers-color-scheme: dark) {
    :root {
        --ws-bg:             #0F1117;
        --ws-surface:        #1A1D27;
        --ws-surface-2:      #242736;
        --ws-border:         #2D3148;
        --ws-text-primary:   #F0F4FF;
        --ws-text-secondary: #A0AABF;
        --ws-text-muted:     #6B7280;
        --ws-shadow-sm:      0 1px 3px rgba(0,0,0,0.4);
        --ws-shadow-md:      0 4px 16px rgba(0,0,0,0.45);
        --ws-shadow-lg:      0 10px 40px rgba(0,0,0,0.55);
    }
}

/* ── Base Reset ────────────────────────────────────────────────── */
.ws-hero *,
.ws-seo-section *,
.ws-faq-section * {
    box-sizing: border-box;
}

/* ── Hero Section ──────────────────────────────────────────────── */
.ws-hero {
    background: var(--ws-bg);
    padding: 2.5rem 0 3rem;
    min-height: 100vh;
    transition: var(--ws-transition-slow);
}

.ws-hero .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ── Hero Header ───────────────────────────────────────────────── */
.ws-hero__header {
    margin-bottom: 2rem;
}

.ws-hero__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--ws-text-primary);
    letter-spacing: -0.03em;
    margin: 0 0 0.6rem;
    line-height: 1.15;
}

.ws-hero__subtitle {
    font-size: 1.05rem;
    color: var(--ws-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.65;
}

/* ── Tool Card ─────────────────────────────────────────────────── */
.ws-tool-card {
    display: grid;
    grid-template-columns: 180px 1fr 240px;
    gap: 1.5rem;
    background: var(--ws-surface);
    border: 1px solid var(--ws-border);
    border-radius: var(--ws-radius-xl);
    padding: 1.75rem;
    box-shadow: var(--ws-shadow-lg);
    margin-bottom: 1.75rem;
    transition: var(--ws-transition-slow);
}

@media (max-width: 900px) {
    .ws-tool-card {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
    }
}

/* ── Sidebar ───────────────────────────────────────────────────── */
.ws-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.ws-sidebar__item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.45rem 0.75rem;
    border: 1px solid var(--ws-border);
    border-radius: var(--ws-radius-sm);
    background: var(--ws-surface-2);
    cursor: pointer;
    transition: var(--ws-transition);
    text-align: left;
    width: 100%;
}

.ws-sidebar__item:hover {
    border-color: var(--ws-primary);
    background: var(--ws-surface);
    box-shadow: var(--ws-shadow-sm);
    transform: translateX(2px);
}

.ws-sidebar__item:focus-visible {
    outline: 2px solid var(--ws-primary);
    outline-offset: 2px;
}

.ws-sidebar__swatch {
    width: 28px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid rgba(0,0,0,0.12);
    flex-shrink: 0;
    display: block;
}

.ws-sidebar__swatch--ring {
    background: radial-gradient(circle at center, transparent 35%, #555 35%, #555 55%, transparent 55%),
                #1a1a1a;
}

.ws-sidebar__label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--ws-text-secondary);
    white-space: nowrap;
}

/* ── Preview ───────────────────────────────────────────────────── */
.ws-preview-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.ws-preview {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--ws-radius-lg);
    border: 3px solid var(--ws-primary);
    box-shadow: 0 0 0 6px var(--ws-primary-glow), var(--ws-shadow-md);
    position: relative;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    overflow: hidden;
}

.ws-preview:hover .ws-preview__fullscreen-btn {
    opacity: 1;
    transform: scale(1);
}

.ws-preview__fullscreen-btn {
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    border-radius: var(--ws-radius-sm);
    background: rgba(0, 0, 0, 0.45);
    border: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.85);
    transition: var(--ws-transition);
    backdrop-filter: blur(4px);
}

.ws-preview__fullscreen-btn:hover {
    background: rgba(0, 0, 0, 0.7);
}

.ws-preview__fullscreen-btn:focus-visible {
    outline: 2px solid var(--ws-primary);
    outline-offset: 2px;
    opacity: 1;
}

/* ── Open All Screens Button ───────────────────────────────────── */
.ws-open-all-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.4rem;
    font-size: 0.9rem;
    font-weight: 600;
}

/* ── Controls Panel ────────────────────────────────────────────── */
.ws-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.ws-controls__title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ws-text-primary);
    margin: 0 0 0.25rem;
}

.ws-controls__group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.ws-controls__label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ws-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ws-controls__dims {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
}

.ws-dim-field {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
}

.ws-dim-sep {
    color: var(--ws-text-muted);
    font-weight: 600;
    flex-shrink: 0;
}

.ws-dim-unit {
    font-size: 0.78rem;
    color: var(--ws-text-muted);
    flex-shrink: 0;
}

/* ── Form Controls ─────────────────────────────────────────────── */
.ws-select,
.ws-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1.5px solid var(--ws-border);
    border-radius: var(--ws-radius-sm);
    background: var(--ws-surface-2);
    color: var(--ws-text-primary);
    font-size: 0.875rem;
    font-family: inherit;
    transition: var(--ws-transition);
    appearance: none;
    -webkit-appearance: none;
}

.ws-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.65rem center;
    padding-right: 2rem;
    cursor: pointer;
}

.ws-select:focus,
.ws-input:focus {
    outline: none;
    border-color: var(--ws-primary);
    box-shadow: var(--ws-shadow-glow);
}

.ws-hex-input {
    font-family: 'Courier New', monospace;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ── Buttons ───────────────────────────────────────────────────── */
.ws-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.55rem 1.2rem;
    border-radius: var(--ws-radius-sm);
    border: none;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--ws-transition);
    text-decoration: none;
    white-space: nowrap;
}

.ws-btn--primary {
    background: var(--ws-primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.35);
}

.ws-btn--primary:hover {
    background: var(--ws-primary-dark);
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.45);
    transform: translateY(-1px);
}

.ws-btn--primary:active {
    transform: translateY(0);
}

.ws-btn--download {
    background: var(--ws-surface-2);
    color: var(--ws-text-primary);
    border: 1.5px solid var(--ws-border);
    width: 100%;
}

.ws-btn--download:hover {
    background: var(--ws-primary);
    color: #fff;
    border-color: var(--ws-primary);
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

.ws-btn:focus-visible {
    outline: 2px solid var(--ws-primary);
    outline-offset: 2px;
}

/* ── Color Picker Row ──────────────────────────────────────────── */
.ws-color-input-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--ws-surface-2);
    border: 1.5px solid var(--ws-border);
    border-radius: var(--ws-radius-sm);
    padding: 0.35rem 0.6rem;
    transition: var(--ws-transition);
}

.ws-color-input-wrap:focus-within {
    border-color: var(--ws-primary);
    box-shadow: var(--ws-shadow-glow);
}

.ws-color-palette-icon {
    font-size: 1.1rem;
    cursor: pointer;
    flex-shrink: 0;
}

.ws-color-native {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 4px;
    padding: 0;
    cursor: pointer;
    background: none;
    flex-shrink: 0;
}

.ws-color-native::-webkit-color-swatch-wrapper { padding: 0; }
.ws-color-native::-webkit-color-swatch { border-radius: 4px; border: 1px solid rgba(0,0,0,0.15); }
.ws-color-native::-moz-color-swatch { border-radius: 4px; border: 1px solid rgba(0,0,0,0.15); }

.ws-hex-input {
    border: none;
    background: transparent;
    padding: 0;
    width: 80px;
    flex: 1;
}

.ws-hex-input:focus {
    outline: none;
    box-shadow: none;
}

/* ── Sliders ───────────────────────────────────────────────────── */
.ws-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--ws-border);
    outline: none;
    cursor: pointer;
    transition: var(--ws-transition);
}

.ws-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--ws-primary);
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
    transition: var(--ws-transition);
}

.ws-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--ws-primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.ws-slider:hover::-webkit-slider-thumb {
    transform: scale(1.2);
    box-shadow: 0 0 0 4px var(--ws-primary-glow);
}

.ws-slider:focus-visible {
    outline: 2px solid var(--ws-primary);
    outline-offset: 2px;
}

.ws-brightness-val {
    font-weight: 700;
    color: var(--ws-primary);
    font-size: 0.8rem;
}

/* ── Color Presets Row ─────────────────────────────────────────── */
.ws-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.ws-preset {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    background: var(--ws-surface);
    border: 2px solid var(--ws-border);
    border-radius: var(--ws-radius-md);
    padding: 0.6rem 0.75rem;
    cursor: pointer;
    transition: var(--ws-transition);
    min-width: 90px;
}

.ws-preset:hover {
    border-color: var(--ws-primary);
    box-shadow: var(--ws-shadow-md);
    transform: translateY(-2px);
}

.ws-preset--active {
    border-color: var(--ws-primary);
    box-shadow: 0 0 0 3px var(--ws-primary-glow), var(--ws-shadow-sm);
}

.ws-preset:focus-visible {
    outline: 2px solid var(--ws-primary);
    outline-offset: 2px;
}

.ws-preset__swatch {
    width: 72px;
    height: 48px;
    border-radius: var(--ws-radius-sm);
    border: 1px solid rgba(0,0,0,0.12);
    display: block;
    transition: var(--ws-transition);
}

.ws-preset__label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--ws-text-secondary);
    white-space: nowrap;
}

/* ── Fullscreen Overlay ────────────────────────────────────────── */
.ws-fullscreen-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    transition: background-color 0.3s ease;
    cursor: none;
}

.ws-fullscreen-overlay.ws-fs-ui-visible {
    cursor: default;
}

.ws-fullscreen-ui {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 1rem 1.5rem;
    background: linear-gradient(to bottom, rgba(0,0,0,0.55) 0%, transparent 100%);
    display: flex;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transform: translateY(-100%);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.ws-fullscreen-overlay.ws-fs-ui-visible .ws-fullscreen-ui {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.ws-fs-btn {
    width: 38px;
    height: 38px;
    border-radius: var(--ws-radius-sm);
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--ws-transition);
    backdrop-filter: blur(8px);
    flex-shrink: 0;
}

.ws-fs-btn:hover {
    background: rgba(255,255,255,0.3);
}

.ws-fs-color-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.ws-fs-preset {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.6);
    cursor: pointer;
    transition: var(--ws-transition);
    flex-shrink: 0;
}

.ws-fs-preset:hover {
    transform: scale(1.2);
    border-color: #fff;
    box-shadow: 0 0 0 3px rgba(255,255,255,0.3);
}

.ws-fs-color-picker {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.6);
    padding: 0;
    cursor: pointer;
    background: none;
    overflow: hidden;
}

.ws-fs-color-picker::-webkit-color-swatch-wrapper { padding: 0; }
.ws-fs-color-picker::-webkit-color-swatch { border: none; border-radius: 50%; }

.ws-fs-info {
    margin-left: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    font-weight: 700;
    color: rgba(255,255,255,0.9);
    background: rgba(0,0,0,0.3);
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    backdrop-filter: blur(8px);
    letter-spacing: 0.08em;
}

/* ── SEO Content Sections ──────────────────────────────────────── */
.ws-seo-section,
.ws-faq-section {
    background: var(--ws-bg);
    padding: 3.5rem 0;
    border-top: 1px solid var(--ws-border);
}

.ws-seo-section .container,
.ws-faq-section .container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.ws-seo-section__title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    color: var(--ws-text-primary);
    text-align: center;
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
}

.ws-seo-section__intro {
    text-align: center;
    color: var(--ws-text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

/* ── Use Cases Grid ────────────────────────────────────────────── */
.ws-use-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.ws-use-case {
    background: var(--ws-surface);
    border: 1px solid var(--ws-border);
    border-radius: var(--ws-radius-lg);
    padding: 1.5rem;
    transition: var(--ws-transition);
}

.ws-use-case:hover {
    border-color: var(--ws-primary);
    box-shadow: var(--ws-shadow-md);
    transform: translateY(-2px);
}

.ws-use-case__icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    display: block;
}

.ws-use-case__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--ws-text-primary);
    margin: 0 0 0.5rem;
}

.ws-use-case p {
    font-size: 0.875rem;
    color: var(--ws-text-secondary);
    line-height: 1.65;
    margin: 0;
}

/* ── FAQ ───────────────────────────────────────────────────────── */
.ws-faq-list {
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.ws-faq-item {
    background: var(--ws-surface);
    border: 1px solid var(--ws-border);
    border-radius: var(--ws-radius-md);
    overflow: hidden;
    transition: var(--ws-transition);
}

.ws-faq-item[open] {
    border-color: var(--ws-primary);
    box-shadow: var(--ws-shadow-sm);
}

.ws-faq-item__q {
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ws-text-primary);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
    transition: var(--ws-transition);
}

.ws-faq-item__q::-webkit-details-marker { display: none; }

.ws-faq-item__q::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--ws-primary);
    flex-shrink: 0;
    transition: transform 0.25s ease;
    line-height: 1;
}

.ws-faq-item[open] .ws-faq-item__q::after {
    transform: rotate(45deg);
}

.ws-faq-item__q:hover {
    color: var(--ws-primary);
}

.ws-faq-item__a {
    padding: 0 1.25rem 1rem;
    border-top: 1px solid var(--ws-border);
}

.ws-faq-item__a p {
    font-size: 0.875rem;
    color: var(--ws-text-secondary);
    line-height: 1.7;
    margin: 0.75rem 0 0;
}

.ws-faq-item__a kbd {
    display: inline-block;
    padding: 0.1em 0.4em;
    font-size: 0.8em;
    font-family: 'Courier New', monospace;
    background: var(--ws-surface-2);
    border: 1px solid var(--ws-border);
    border-radius: 4px;
    color: var(--ws-text-primary);
}

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .ws-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .ws-sidebar__item {
        flex: 1 1 calc(50% - 0.25rem);
        min-width: 120px;
    }

    .ws-controls {
        order: -1;
    }
}

@media (max-width: 600px) {
    .ws-tool-card {
        padding: 1.25rem;
        gap: 1.25rem;
    }

    .ws-presets {
        gap: 0.5rem;
    }

    .ws-preset {
        min-width: 70px;
        padding: 0.5rem;
    }

    .ws-preset__swatch {
        width: 56px;
        height: 38px;
    }

    .ws-hero {
        padding: 1.5rem 0 2rem;
    }
}

/* ── Accessibility: Reduced Motion ─────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* ── Print ─────────────────────────────────────────────────────── */
@media print {
    .ws-fullscreen-overlay,
    .ws-sidebar,
    .ws-controls,
    .ws-presets,
    .ws-seo-section,
    .ws-faq-section {
        display: none !important;
    }
}




/* ══════════════════════════════════════════════════════════════
   STACKING & POINTER-EVENTS FIXES — v4.0
   These rules are the definitive fix for click-blocking issues.
══════════════════════════════════════════════════════════════ */

/* 1. Overlay: inert when hidden, active when shown */
#wsFullscreenOverlay {
    display: none;
    pointer-events: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    outline: none;
    /* Use flex so the UI bar child aligns to top */
    flex-direction: column;
    align-items: stretch;
}

/* 2. Tool card: never create a blocking stacking context */
.ws-tool-card {
    position: relative;
    z-index: 1;
    isolation: auto;  /* do NOT use isolate — it traps z-index */
}

/* 3. Hero section: base layer, never above tool content */
.ws-hero {
    position: relative;
    z-index: 0;
}

/* 4. Preview: ensure it's always interactive */
.ws-preview {
    position: relative;
    z-index: 2;
    cursor: pointer;
}

/* 5. Fullscreen button: always on top inside preview */
.ws-preview__fullscreen-btn {
    position: absolute;
    z-index: 3;
    pointer-events: auto;
    /* Always visible on touch devices */
}

@media (hover: none) {
    .ws-preview__fullscreen-btn {
        opacity: 0.7 !important;
        transform: scale(1) !important;
    }
}

/* 6. Sidebar & preset spans: never absorb clicks */
.ws-sidebar__item > *,
.ws-preset > * {
    pointer-events: none;
}

/* 7. Controls panel: always interactive */
.ws-controls,
.ws-sidebar {
    position: relative;
    z-index: 2;
    pointer-events: auto;
}

/* 8. All buttons: explicit pointer-events */
.ws-btn,
.ws-sidebar__item,
.ws-preset,
.ws-preview__fullscreen-btn,
#wsDownloadBtn,
#wsOpenAllBtn,
#wsFullscreenBtn {
    pointer-events: auto !important;
    cursor: pointer;
}

/* 9. Form inputs: always interactive */
.ws-select,
.ws-input,
.ws-slider,
.ws-color-native {
    pointer-events: auto !important;
    cursor: pointer;
    position: relative;
    z-index: 2;
}

/* 10. Fullscreen overlay UI bar */
.ws-fullscreen-ui {
    position: absolute;
    top: 0; left: 0; right: 0;
    padding: 1rem 1.5rem;
    background: linear-gradient(to bottom, rgba(0,0,0,0.55), transparent);
    display: flex;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transform: translateY(-100%);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
    z-index: 10000;
}

.ws-fs-ui-visible .ws-fullscreen-ui {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}