/* YouTube-dark theme */
:root{
  --bg:#0f0f0f; --surface:#181818; --surface-2:#212121; --chip:#272727; --chip-h:#3f3f3f;
  --line:#303030; --line-2:#3f3f3f;
  --txt:#f1f1f1; --muted:#aaaaaa; --dim:#717171;
  --red:#ff5252; --brand:#ff0000; --blue:#3ea6ff; --green:#3ecf8e; --yellow:#ffd23d; --purple:#c299ff;
  --shadow:0 4px 24px rgba(0,0,0,.5);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  background:var(--bg); color:var(--txt);
  font-family:"Roboto","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased;font-size:14px;
}
a{color:inherit;text-decoration:none}
code{font-family:"Roboto Mono",ui-monospace,Menlo,monospace;background:#0006;padding:1px 5px;border-radius:4px;font-size:.9em}
.muted{color:var(--muted);font-weight:400}
.dim{color:var(--dim)}

/* Topbar */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:0 18px;height:56px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:var(--bg);z-index:30;
}
.brand{font-weight:700;letter-spacing:.2px;font-size:1.1rem;display:flex;align-items:center;gap:8px}
.brand .dot{width:26px;height:19px;background:var(--brand);border-radius:5px;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:.7rem}
.topnav{display:flex;gap:10px;align-items:center}
#sync-status{font-size:.8rem;color:var(--muted)}

/* Buttons */
.btn{
  background:var(--chip);color:var(--txt);border:1px solid var(--line-2);
  padding:8px 15px;border-radius:20px;font-weight:600;font-size:.85rem;cursor:pointer;transition:.12s;
  display:inline-flex;align-items:center;gap:7px;
}
.btn:hover{background:var(--chip-h)}
.btn-primary{background:var(--txt);color:#0f0f0f;border-color:var(--txt)}
.btn-primary:hover{background:#fff}
.btn-yt{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-yt:hover{background:#e60000}
.btn-sm{padding:5px 11px;font-size:.8rem}
.btn-ghost{background:transparent;border-color:transparent;color:var(--muted)}
.btn-ghost:hover{color:var(--txt);background:var(--chip)}

main{max-width:1400px;margin:0 auto;padding:22px 20px 80px}

/* Grid */
.grid-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:16px;gap:16px;flex-wrap:wrap}
.grid-head h1{font-size:1.35rem;margin:0}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.card{background:transparent;border-radius:12px;cursor:pointer;transition:.12s;display:flex;flex-direction:column;gap:9px}
.card:hover .card-thumb{transform:translateY(-2px)}
.card-thumb{position:relative;aspect-ratio:16/9;background:#000;overflow:hidden;border-radius:12px;transition:.12s}
.card-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.card-dur{position:absolute;right:8px;bottom:8px;background:#000c;padding:2px 6px;border-radius:4px;font-size:.75rem;font-weight:600}
.card-badge{position:absolute;left:8px;top:8px;background:#000c;padding:3px 8px;border-radius:6px;font-size:.72rem;font-weight:700}
.card-body{display:flex;flex-direction:column;gap:9px;padding:0 2px}
.card-title{font-weight:600;font-size:.95rem;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.5em}
.spark{width:100%;height:46px;display:block;border-radius:6px}
.card-stats{display:flex;gap:16px;flex-wrap:wrap}
.stat{display:flex;flex-direction:column;line-height:1.2}
.stat b{font-size:.98rem;font-weight:700}
.stat small{color:var(--muted);font-size:.68rem;text-transform:uppercase;letter-spacing:.3px}
.stat.warn b{color:var(--red)} .stat.good b{color:var(--green)}

.empty{text-align:center;padding:70px 20px;border:1px solid var(--line);border-radius:14px;color:var(--muted);background:var(--surface)}
.empty h2{color:var(--txt);margin:.2em 0}
.empty .btn{margin:6px}

/* Detail — 2 column */
.detail-top{display:flex;align-items:center;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.back{color:var(--muted);font-weight:600}.back:hover{color:var(--txt)}
.detail-top h1{font-size:1.25rem;margin:0;flex:1;min-width:200px;line-height:1.3}
.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:18px;align-items:start}
@media(max-width:1080px){.detail-layout{grid-template-columns:1fr}}
.col-side{display:flex;flex-direction:column;gap:14px;position:sticky;top:72px}
@media(max-width:1080px){.col-side{position:static}}
.col-main{display:flex;flex-direction:column;gap:16px;min-width:0}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:15px}
.panel h3{margin:0 0 12px;font-size:.9rem;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:8px}
.panel h3 .muted{font-weight:400;font-size:.85em}

.player-panel{padding:0;overflow:hidden;background:#000}
.player-wrap{position:relative;aspect-ratio:16/9;background:#000}
.player-wrap iframe,.player-wrap>div{position:absolute;inset:0;width:100%;height:100%}

/* KPIs */
.kpis{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.kpi{background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:9px 12px}
.kpi b{display:block;font-size:1.15rem;font-weight:700;line-height:1.1}
.kpi small{color:var(--muted);font-size:.66rem;text-transform:uppercase;letter-spacing:.3px}
.kpi.red b{color:var(--red)} .kpi.green b{color:var(--green)}

/* Hook / benchmark panel */
.hook-row{display:grid;grid-template-columns:42px 1fr auto;gap:10px;align-items:center;padding:9px 0;border-bottom:1px solid var(--line)}
.hook-row:last-child{border-bottom:none}
.hook-t{font-weight:700;font-size:.9rem;font-variant-numeric:tabular-nums}
.hook-bar{height:8px;border-radius:6px;background:var(--surface-2);overflow:hidden;position:relative}
.hook-bar i{display:block;height:100%;border-radius:6px}
.hook-bar .bench{position:absolute;top:-2px;bottom:-2px;width:2px;background:var(--txt);opacity:.55}
.hook-val{text-align:right;min-width:100px}
.hook-val b{font-size:1rem}
.hook-val .vt{font-size:.72rem;display:block}
.grade{padding:1px 7px;border-radius:20px;font-size:.66rem;font-weight:700;margin-left:6px}
.grade.g{background:#3ecf8e22;color:var(--green)} .grade.o{background:#ffd23d22;color:var(--yellow)} .grade.b{background:#ff525222;color:var(--red)}
.hook-note{font-size:.72rem;color:var(--dim);margin-top:8px}

/* Chart */
.chart-card{padding:16px 16px 10px}
.chart-legend{display:flex;gap:14px;font-size:.75rem;color:var(--muted);flex-wrap:wrap;align-items:center;font-weight:400}
.chart-legend .sw{display:inline-block;width:14px;height:9px;border-radius:2px;margin-right:5px;vertical-align:0}
.chart-legend .ln{display:inline-block;width:14px;height:2px;margin-right:5px;vertical-align:3px}
.chart-wrap{position:relative;width:100%}
svg.chart{width:100%;display:block;cursor:crosshair;touch-action:none}
.chart-tip{position:absolute;pointer-events:none;background:#000d;border:1px solid var(--line-2);border-radius:8px;padding:7px 10px;font-size:.78rem;box-shadow:var(--shadow);opacity:0;transition:opacity .06s;white-space:nowrap;z-index:5}
.chart-ctl{display:flex;gap:16px;align-items:center;margin-top:8px;flex-wrap:wrap}
.chart-ctl label{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;color:var(--muted);cursor:pointer}

/* Tables */
.tables{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:760px){.tables{grid-template-columns:1fr}}
table{width:100%;border-collapse:collapse;font-size:.83rem}
th,td{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:500;font-size:.7rem;text-transform:uppercase;letter-spacing:.3px}
tr.clickable{cursor:pointer}
tr.clickable:hover td{background:var(--surface-2)}
.tag{padding:2px 8px;border-radius:20px;font-size:.72rem;font-weight:700}
.tag.red{background:#ff525222;color:var(--red)} .tag.green{background:#3ecf8e22;color:var(--green)}
.mono{font-family:"Roboto Mono",ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}

/* imports / toggles */
.imports-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:8px}
.chip{background:var(--chip);border:1px solid var(--line-2);border-radius:20px;padding:5px 12px;font-size:.78rem;display:inline-flex;align-items:center;gap:7px;cursor:pointer}
.chip input{accent-color:var(--blue)}

/* Annotations */
.ann-list{display:flex;flex-direction:column;gap:7px;margin-top:2px}
.ann-item{display:flex;gap:9px;align-items:flex-start;background:var(--surface-2);border:1px solid var(--line);border-radius:9px;padding:8px 10px;font-size:.83rem}
.ann-item .t{color:var(--blue);font-weight:700;cursor:pointer;white-space:nowrap}
.ann-item .x{margin-left:auto;color:var(--dim);cursor:pointer}.ann-item .x:hover{color:var(--red)}
.ann-add{display:flex;gap:8px;margin-top:10px}

input[type=text],textarea{width:100%;background:#0f0f0f;border:1px solid var(--line-2);border-radius:9px;color:var(--txt);padding:9px 11px;font-size:.9rem;font-family:inherit}
input:focus,textarea:focus{outline:none;border-color:var(--blue)}
label.field{display:flex;flex-direction:column;gap:6px;font-size:.82rem;font-weight:600;margin-bottom:12px}

/* Modal */
.modal{position:fixed;inset:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal.hidden{display:none}
.modal-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;width:min(540px,100%);padding:22px;box-shadow:var(--shadow);max-height:90vh;overflow:auto}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.modal-head h2{margin:0;font-size:1.15rem}
.modal-close{background:none;border:none;color:var(--muted);font-size:1.1rem;cursor:pointer}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}
.dropzone{border:2px dashed var(--line-2);border-radius:12px;padding:32px 20px;text-align:center;cursor:pointer;transition:.12s}
.dropzone.drag{border-color:var(--blue);background:#3ea6ff11}
.dropzone p{margin:5px 0}
.upload-preview{margin:6px 0 14px}
.hidden{display:none}
.divider{display:flex;align-items:center;gap:12px;color:var(--dim);font-size:.78rem;margin:16px 0}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}
.help{font-size:.8rem;color:var(--muted);line-height:1.5}
.help ol{margin:6px 0;padding-left:20px}.help li{margin:3px 0}
.progress{height:6px;background:var(--surface-2);border-radius:6px;overflow:hidden;margin-top:8px}
.progress i{display:block;height:100%;background:var(--blue);width:0;transition:width .2s}

.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--surface-2);border:1px solid var(--line-2);border-radius:10px;padding:11px 18px;box-shadow:var(--shadow);z-index:60;font-size:.88rem;opacity:0;transition:.2s;pointer-events:none;max-width:90vw}
.toast.show{opacity:1}
.toast.err{border-color:var(--red);color:var(--red)}