:root {
    --bg: #0B0B0C;
    --surface: #111113;
    --surface-card: rgba(255,255,255,0.04);
    --accent: #ED1C24;
    --accent-dark: #d0181f;
    --accent-glow: rgba(237,28,36,0.5);
    --gold: #FFC90E;
    --gold-glow: rgba(255,201,14,0.25);
    --muted: rgba(255,255,255,0.6);
    --overlay-bg: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.7) 50%, rgba(0,0,0,0.85) 100%);
    --topbar-bg: linear-gradient(180deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0) 100%);
    --radius: 10px;
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-top: env(safe-area-inset-top, 0px);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
html,body{height:100%;overflow:hidden;background:var(--bg);color:#fff;font-family:'Inter',system-ui,sans-serif;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}
body{position:relative}

/* APP */
#app{position:fixed;inset:0;overflow:hidden;display:flex;flex-direction:column}

/* PLAYER */
#player-container{position:absolute;inset:0;background:#000;display:flex;align-items:center;justify-content:center}
#player-container video,#player-container iframe{width:100%;height:100%;border:none;display:block;object-fit:contain}
#player-container .video-wrapper{width:100%;height:100%}

/* PLACEHOLDER */
.placeholder{text-align:center;color:var(--muted);padding:24px;max-width:400px}
.placeholder-logo{width:64px;height:64px;margin:0 auto 16px;border-radius:16px;background:linear-gradient(135deg,rgba(237,28,36,0.2),rgba(255,201,14,0.15));display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;color:var(--accent);box-shadow:0 8px 32px rgba(0,0,0,0.4)}
.placeholder-title{font-size:20px;font-weight:700;margin-bottom:8px;color:#fff}
.placeholder-sub{font-size:13px;margin-bottom:20px;line-height:1.5}
.placeholder-input-row{display:flex;gap:6px;margin-bottom:12px}
#video-url{flex:1;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.1);border-radius:var(--radius);padding:10px 14px;color:#fff;font-size:14px;outline:none}
#video-url:focus{border-color:var(--accent)}
#load-btn{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;border:none;border-radius:12px;padding:10px 18px;font-weight:600;font-size:13px;cursor:pointer;transition:all .3s;box-shadow:0 8px 25px rgba(237,28,36,.25)}
#load-btn:hover{transform:translateY(-3px);box-shadow:0 15px 35px rgba(237,28,36,.35)}
.browse-btn{background:transparent;color:var(--gold);border:1.5px solid var(--gold-glow);border-radius:12px;padding:10px 24px;font-size:13px;font-weight:600;cursor:pointer;transition:all .3s;box-shadow:0 4px 15px rgba(255,201,14,.1)}
.browse-btn:hover{transform:translateY(-2px);border-color:rgba(255,201,14,.4);box-shadow:0 8px 25px rgba(255,201,14,.2);background:rgba(255,201,14,.05)}

/* TOP BAR */
.top-bar{position:absolute;top:0;left:0;right:0;padding:calc(12px + var(--safe-top)) 16px 16px;background:var(--topbar-bg);display:flex;align-items:center;justify-content:space-between;z-index:20;opacity:0;pointer-events:none;transition:opacity .25s}
.top-bar.visible{opacity:1;pointer-events:auto}
.file-name{font-size:13px;font-weight:500;color:rgba(255,255,255,0.9);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60%}
.top-actions{display:flex;gap:8px}
.top-btn{background:rgba(255,255,255,0.1);border:none;border-radius:12px;width:36px;height:36px;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#fff;transition:all .3s;backdrop-filter:blur(8px)}
.top-btn:hover{transform:translateY(-2px);background:rgba(255,255,255,0.18)}
.top-btn:active{transform:translateY(0);background:rgba(255,255,255,0.25)}

/* CENTER PLAY */
.center-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:15;opacity:0;transition:opacity .2s;pointer-events:none}
.center-play.visible{opacity:1;pointer-events:auto}
.btn-play-large{width:72px;height:72px;border-radius:50%;background:rgba(255,255,255,0.12);border:none;font-size:0;cursor:pointer;color:#fff;display:flex;align-items:center;justify-content:center;transition:all .3s;backdrop-filter:blur(12px)}
.btn-play-large:hover{transform:translateY(-3px) scale(1.05);background:rgba(255,255,255,0.2);box-shadow:0 8px 30px rgba(0,0,0,.4)}
.btn-play-large:active{transform:scale(0.92);background:rgba(255,255,255,0.25)}
.btn-play-large svg{width:32px;height:32px}

/* CONTROLS OVERLAY */
.controls-overlay{position:absolute;bottom:0;left:0;right:0;padding:16px 16px calc(16px + var(--safe-bottom));background:var(--overlay-bg);z-index:20;opacity:0;transition:opacity .25s;pointer-events:none}
.controls-overlay.visible{opacity:1;pointer-events:auto}
.seek-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.time{font-size:12px;font-family:monospace;color:rgba(255,255,255,0.8);min-width:42px;text-align:center;white-space:nowrap}
.seek-container{flex:1;position:relative;height:28px;display:flex;align-items:center;cursor:pointer}
.seek-bar{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;z-index:2;margin:0}
.seek-track{position:absolute;left:0;right:0;height:4px;background:rgba(255,255,255,0.2);border-radius:4px;overflow:hidden}
.seek-fill{height:100%;width:0%;background:var(--accent);border-radius:4px;transition:width .1s linear}
.seek-thumb{position:absolute;top:50%;left:0%;width:14px;height:14px;background:var(--accent);border-radius:50%;transform:translate(-50%,-50%);opacity:0;transition:opacity .15s;box-shadow:0 0 8px var(--accent-glow);pointer-events:none}
.seek-container:hover .seek-thumb,
.seek-container:active .seek-thumb{opacity:1}

/* TRANSPORT ROW */
.transport-row{display:flex;align-items:center;gap:10px}
.ctrl-btn{background:rgba(255,255,255,0.08);border:none;border-radius:12px;width:40px;height:40px;font-size:0;cursor:pointer;color:#fff;display:flex;align-items:center;justify-content:center;transition:all .3s;flex-shrink:0;backdrop-filter:blur(8px)}
.ctrl-btn:hover{transform:translateY(-2px);background:rgba(255,255,255,0.18);box-shadow:0 4px 15px rgba(0,0,0,.3)}
.ctrl-btn:active{transform:scale(0.9);background:rgba(255,255,255,0.25)}
.ctrl-btn svg{width:20px;height:20px}
.ctrl-btn-play{width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,0.15)}
.ctrl-btn-play svg{width:24px;height:24px}
.ctrl-btn-sm{width:32px;height:32px}
.ctrl-btn-sm svg{width:16px;height:16px}
.spacer{flex:1}
.vol-group{display:flex;align-items:center;gap:6px}
.vol-slider{width:80px;height:4px;accent-color:var(--accent);cursor:pointer;opacity:0.8}

/* DRAWER */
.drawer-overlay{position:absolute;inset:0;z-index:40;display:none}
.drawer-overlay.visible{display:block}
.drawer{position:absolute;top:0;right:0;bottom:0;width:340px;max-width:85vw;background:rgba(17,17,19,0.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);z-index:45;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .3s cubic-bezier(0.4,0,0.2,1);box-shadow:-8px 0 40px rgba(0,0,0,0.5)}
.drawer.open{transform:translateX(0)}
.drawer-header{display:flex;justify-content:space-between;align-items:center;padding:24px 32px;border-bottom:1px solid rgba(255,255,255,0.05);flex-shrink:0}
.drawer-header h2{font-size:18px;font-weight:700;margin:0}
.drawer-close{background:rgba(255,255,255,0.06);border:none;border-radius:12px;width:32px;height:32px;font-size:0;cursor:pointer;color:rgba(255,255,255,0.6);display:flex;align-items:center;justify-content:center;transition:all .3s;backdrop-filter:blur(8px)}
.drawer-close:hover{transform:translateY(-2px);background:rgba(255,255,255,0.12);color:#fff}
.drawer-close:active{transform:scale(0.9)}
.drawer-close svg{width:16px;height:16px}
.drawer-body{flex:1;overflow-y:auto;padding:32px;-webkit-overflow-scrolling:touch}
.drawer-body::-webkit-scrollbar{width:6px}
.drawer-body::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.1);border-radius:10px}

/* FILTER CARDS */
.card{background:linear-gradient(135deg,rgba(255,255,255,0.03),rgba(255,255,255,0.01));border:1px solid rgba(255,255,255,0.04);border-radius:16px;padding:20px;margin-bottom:24px;transition:border-color 0.3s}
.card:hover{border-color:rgba(237,28,36,0.15)}
.card h3{font-size:10px;text-transform:uppercase;letter-spacing:2px;color:var(--gold);margin:0 0 20px;opacity:0.8}
.row{margin-bottom:20px}
.row:last-child{margin-bottom:0}
.row label{display:block;font-size:12px;font-weight:500;color:#E8E8E8;margin-bottom:8px}
.row input[type="range"]{width:100%;cursor:pointer;accent-color:var(--accent);height:auto}
.value-display{display:block;text-align:right;font-size:10px;color:var(--gold);font-family:monospace;margin-top:4px}
.row.sub-control{margin-left:15px;margin-top:-10px;margin-bottom:12px;opacity:0.8}
.row.sub-control label{font-size:11px;color:var(--gold)}
.master-toggle-container{display:flex;align-items:center;gap:8px;margin-top:4px}
.toggle-label{font-size:10px;text-transform:uppercase;color:var(--gold);font-weight:700;letter-spacing:0.5px}
.btn-text{background:transparent;border:none;color:var(--gold);font-weight:600;font-size:12px;cursor:pointer;text-transform:uppercase;letter-spacing:0.5px;flex-shrink:0}
.toggle-row{display:flex;align-items:center;gap:10px}
.switch{position:relative;display:inline-block;width:32px;height:18px;flex-shrink:0}
.switch input{opacity:0;width:0;height:0}
.switch .slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background:rgba(255,255,255,0.12);transition:.3s;border-radius:20px}
.switch .slider:before{position:absolute;content:"";height:12px;width:12px;left:3px;bottom:3px;background:#fff;transition:.3s;border-radius:50%}
.switch input:checked+.slider{background:var(--accent)}
.switch input:checked+.slider:before{transform:translateX(14px)}
.slider.round{border-radius:20px}
.slider.round:before{border-radius:50%}

/* GESTURE INDICATORS */
.gesture-indicator{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0.8);z-index:25;background:rgba(0,0,0,0.7);border-radius:12px;padding:12px 20px;backdrop-filter:blur(12px);opacity:0;transition:opacity .15s,transform .15s;pointer-events:none;text-align:center;white-space:nowrap}
.gesture-indicator.show{opacity:1;transform:translate(-50%,-50%) scale(1)}
.gi-icon{font-size:24px;display:block;margin-bottom:4px}
.gi-value{font-size:14px;font-weight:600;color:#fff}
.gi-seek .gi-value{font-size:13px;font-family:monospace;color:var(--gold)}
.gi-bar{width:100px;height:4px;background:rgba(255,255,255,0.2);border-radius:4px;margin-top:6px;overflow:hidden}
.gi-bar-fill{height:100%;width:50%;background:var(--gold);border-radius:4px;transition:width .05s}

/* LOCKED STATE */
#app.locked .controls-overlay,
#app.locked .top-bar,
#app.locked .center-play,
#app.locked .drawer,
#app.locked .drawer-overlay { display: none !important; }

.btn-lock-fixed {
    position: absolute;
    top: calc(56px + var(--safe-top));
    left: 16px;
    z-index: 40;
    background: rgba(255,255,255,0.08);
    border: none;
    border-radius: 12px;
    width: 44px;
    height: 44px;
    font-size: 0;
    cursor: grab;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: all .3s;
    touch-action: none;
    backdrop-filter: blur(8px);
}
.btn-lock-fixed.visible{opacity:1;pointer-events:auto}
.btn-lock-fixed:hover{transform:translateY(-2px);background:rgba(255,255,255,0.18)}
#app.locked .btn-lock-fixed{opacity:0;pointer-events:none}
.btn-lock-fixed.dragging {
    cursor: grabbing;
    transform: scale(1.25);
    transition: opacity .25s;
    background: rgba(255,255,255,0.15);
    z-index: 50;
    box-shadow:0 4px 20px rgba(0,0,0,.4);
}
.btn-lock-fixed svg{width:22px;height:22px}
#app.locked .btn-lock-fixed.dragging { pointer-events: auto !important; }

/* FULLSCREEN */
#player-container:fullscreen{max-width:none;width:100%;height:100%;background:#000}

/* LANDSCAPE: optimize transport row */
@media (orientation:landscape) and (max-height:500px) {
    .controls-overlay{padding:8px 12px calc(8px + var(--safe-bottom))}
    .seek-row{margin-bottom:6px}
    .transport-row{gap:6px}
    .ctrl-btn{width:32px;height:32px;font-size:0}
    .ctrl-btn svg{width:16px;height:16px}
    .ctrl-btn-play{width:40px;height:40px}
    .ctrl-btn-play svg{width:20px;height:20px}
    .ctrl-btn-sm{width:26px;height:26px}
    .ctrl-btn-sm svg{width:13px;height:13px}
    .vol-slider{width:60px}
    .seek-container{height:24px}
}
@media (max-width:480px) {
    .controls-overlay{padding:12px 10px calc(12px + var(--safe-bottom))}
    .seek-row{gap:8px}
    .ctrl-btn{width:36px;height:36px;font-size:0}
    .ctrl-btn svg{width:18px;height:18px}
    .ctrl-btn-play{width:44px;height:44px}
    .ctrl-btn-play svg{width:22px;height:22px}
    .vol-slider{width:60px}
    .drawer{width:300px}
}
@media (hover:none) and (pointer:coarse) {
    .seek-container{height:32px}
    .seek-track{height:5px}
    .seek-thumb{opacity:1;width:16px;height:16px}
    .ctrl-btn{width:44px;height:44px;font-size:0}
    .ctrl-btn svg{width:22px;height:22px}
    .ctrl-btn-play{width:52px;height:52px}
    .ctrl-btn-play svg{width:26px;height:26px}
    .vol-slider{width:100px;height:6px}
    .top-btn{width:40px;height:40px;font-size:0}
    .top-btn svg{width:20px;height:20px}
}
/* SMALL PORTRAIT: prevent overflow */
@media (max-width:400px) and (orientation:portrait) {
    .controls-overlay{padding:8px 8px calc(8px + var(--safe-bottom))}
    .seek-row{gap:6px;margin-bottom:6px}
    .transport-row{gap:6px}
    .time{min-width:36px;font-size:11px}
    .ctrl-btn{width:32px;height:32px}
    .ctrl-btn svg{width:16px;height:16px}
    .ctrl-btn-play{width:38px;height:38px}
    .ctrl-btn-play svg{width:19px;height:19px}
    .ctrl-btn-sm{width:28px;height:28px}
    .ctrl-btn-sm svg{width:14px;height:14px}
    .vol-slider{width:48px}
    .top-bar{padding:calc(8px + var(--safe-top)) 8px 12px}
    .top-btn{width:32px;height:32px}
    .top-btn svg{width:16px;height:16px}
    .btn-lock-fixed{width:36px;height:36px;top:calc(48px + var(--safe-top));left:8px}
    .btn-lock-fixed svg{width:18px;height:18px}
    .file-name{font-size:12px;max-width:50%}
    .drawer{width:260px}
    .drawer-header{padding:16px 20px}
    .drawer-body{padding:20px}
    .card{padding:14px;margin-bottom:16px}
}