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

:root {
    --bg: #0a0a0f;
    --bg2: #12121a;
    --surface: rgba(255,255,255,0.04);
    --surface-hover: rgba(255,255,255,0.08);
    --magenta: #ff2d78;
    --cyan: #00f0ff;
    --amber: #ffaa00;
    --text: #e8e8f0;
    --text-dim: #6a6a80;
    --font-display: 'Bricolage Grotesque', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --glow-magenta: 0 0 20px rgba(255,45,120,0.4), 0 0 60px rgba(255,45,120,0.1);
    --glow-cyan: 0 0 20px rgba(0,240,255,0.4), 0 0 60px rgba(0,240,255,0.1);
}

html, body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    min-height: 100vh;
    overflow-x: hidden;
}

body {
    background: 
        radial-gradient(ellipse at 20% 0%, rgba(255,45,120,0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(0,240,255,0.05) 0%, transparent 50%),
        var(--bg);
}

/* Header */
header {
    padding: 20px 24px 12px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(1.6rem, 5vw, 2.4rem);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--magenta), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none;
    position: relative;
    display: inline-block;
    animation: glitch-flicker 4s infinite;
}

.badge {
    -webkit-text-fill-color: initial;
    font-size: 0.6em;
    vertical-align: super;
}

.subtitle {
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-top: 4px;
}

@keyframes glitch-flicker {
    0%, 94%, 100% { opacity: 1; }
    95% { opacity: 0.8; transform: translateX(-1px); }
    96% { opacity: 1; transform: translateX(1px); }
    97% { opacity: 0.9; transform: translateX(0); }
}

/* Main layout */
#app {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 900px) {
    #app {
        grid-template-columns: 1fr 320px;
        grid-template-rows: auto auto;
    }
    #preview-area { grid-column: 1; grid-row: 1 / 3; }
    #effects-panel { grid-column: 2; grid-row: 1; }
    #export-section { grid-column: 2; grid-row: 2; }
}

/* Drop zone */
.drop-zone {
    border: 2px dashed rgba(255,255,255,0.15);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 360px;
    cursor: pointer;
    transition: all 0.3s;
    background: var(--surface);
}

.drop-zone:hover, .drop-zone.drag-over {
    border-color: var(--cyan);
    background: rgba(0,240,255,0.04);
    box-shadow: var(--glow-cyan);
}

.drop-zone-content { text-align: center; }

.film-icon {
    font-size: 3rem;
    margin-bottom: 12px;
    filter: grayscale(0.5);
}

.drop-text {
    font-size: 0.95rem;
    color: var(--text);
    margin-bottom: 6px;
}

.drop-hint {
    font-size: 0.7rem;
    color: var(--text-dim);
}

/* Canvas area */
#canvas-container {
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0,0,0,0.6), 0 0 1px rgba(0,240,255,0.2);
}

#gl-canvas {
    display: block;
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
}

#video-meta {
    padding: 6px 14px;
    font-size: 0.65rem;
    color: var(--text-dim);
    background: rgba(0,0,0,0.6);
}

/* Transport */
#transport {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg2);
}

.transport-btn {
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    background: var(--surface);
    color: var(--text);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.transport-btn:hover {
    border-color: var(--cyan);
    box-shadow: var(--glow-cyan);
}

#scrubber-wrap { flex: 1; }

#scrubber {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    border-radius: 2px;
    background: rgba(255,255,255,0.1);
    outline: none;
    cursor: pointer;
}

#scrubber::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 8px rgba(0,240,255,0.5);
    cursor: pointer;
}

#scrubber::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--cyan);
    border: none;
    box-shadow: 0 0 8px rgba(0,240,255,0.5);
    cursor: pointer;
}

#time-display {
    font-size: 0.7rem;
    color: var(--text-dim);
    white-space: nowrap;
    min-width: 80px;
    text-align: right;
}

/* Effects panel */
#effects-panel {
    background: var(--surface);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 16px;
    padding: 16px;
    backdrop-filter: blur(20px);
}

.panel-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 14px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

#effects-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.effect-card {
    padding: 10px;
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 10px;
    background: rgba(255,255,255,0.02);
    cursor: pointer;
    transition: all 0.25s;
    text-align: center;
    user-select: none;
}

.effect-card:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.12);
}

.effect-card.active {
    border-color: var(--magenta);
    background: rgba(255,45,120,0.08);
    box-shadow: 0 0 16px rgba(255,45,120,0.15);
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 16px rgba(255,45,120,0.15); }
    50% { box-shadow: 0 0 24px rgba(255,45,120,0.25); }
}

.effect-icon {
    font-size: 1.3rem;
    display: block;
    margin-bottom: 4px;
}

.effect-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
}

.effect-card.active .effect-label { color: var(--magenta); }

.effect-key {
    font-size: 0.55rem;
    color: rgba(255,255,255,0.15);
    margin-top: 2px;
}

/* Params */
#params-panel {
    margin-top: 14px;
}

.param-group {
    margin-bottom: 10px;
    padding: 10px;
    background: rgba(0,0,0,0.3);
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.04);
}

.param-group-title {
    font-size: 0.65rem;
    color: var(--magenta);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.param-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.param-row:last-child { margin-bottom: 0; }

.param-label {
    font-size: 0.6rem;
    color: var(--text-dim);
    min-width: 60px;
    text-transform: uppercase;
}

.param-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 3px;
    border-radius: 2px;
    background: rgba(255,255,255,0.08);
    outline: none;
}

.param-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--magenta);
    box-shadow: 0 0 6px rgba(255,45,120,0.4);
    cursor: pointer;
}

.param-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--magenta);
    border: none;
    box-shadow: 0 0 6px rgba(255,45,120,0.4);
    cursor: pointer;
}

.param-value {
    font-size: 0.6rem;
    color: var(--cyan);
    min-width: 30px;
    text-align: right;
}

/* Export */
#export-section {
    background: var(--surface);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 16px;
    padding: 16px;
    backdrop-filter: blur(20px);
}

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

.export-label {
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

#res-select {
    background: var(--bg);
    color: var(--text);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    padding: 6px 10px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    outline: none;
    cursor: pointer;
}

.export-btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    color: #fff;
    background: linear-gradient(135deg, var(--magenta), var(--cyan));
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.export-btn:hover:not(:disabled) {
    box-shadow: 0 0 30px rgba(255,45,120,0.3), 0 0 30px rgba(0,240,255,0.3);
    transform: translateY(-1px);
}

.export-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.export-icon { margin-right: 6px; }

.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 6px;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--magenta), var(--cyan));
    border-radius: 2px;
    transition: width 0.3s;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { opacity: 0.8; }
    50% { opacity: 1; }
    100% { opacity: 0.8; }
}

#progress-text {
    font-size: 0.65rem;
    color: var(--text-dim);
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    font-size: 0.65rem;
    color: var(--text-dim);
    border-top: 1px solid rgba(255,255,255,0.04);
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 16px;
}

footer a {
    color: var(--cyan);
    text-decoration: none;
}

footer a:hover { text-decoration: underline; }

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 20px;
    background: rgba(0,240,255,0.15);
    border: 1px solid var(--cyan);
    border-radius: 10px;
    font-size: 0.75rem;
    color: var(--cyan);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.4s;
    transform: translateY(0);
}

.toast.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
}

/* Fallback */
.fallback-msg {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    color: var(--text);
    z-index: 9999;
    text-align: center;
    padding: 40px;
}

.fallback-msg h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--magenta);
}

.hidden { display: none !important; }

/* Mobile stacking */
@media (max-width: 899px) {
    #effects-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 500px) {
    #effects-grid { grid-template-columns: repeat(2, 1fr); }
    #app { padding: 12px; }
}