/* Swing Splitter — dark, high-contrast, thumb-sized targets. */

:root{
  --bg:#0e1512;
  --panel:#151f1b;
  --panel-2:#1b2723;
  --line:#26352f;
  --ink:#e9f0ec;
  --muted:#93a29b;
  --accent:#7ade8a;
  --accent-ink:#08160c;
  --warn:#ffb27a;
  --danger:#ff8a8a;
  --wave:rgba(233,240,236,.5);
  --band:rgba(122,222,138,.12);
  --band-on:rgba(122,222,138,.26);
  --band-edge:rgba(122,222,138,.5);
  --playhead:#ffd166;
  --radius:16px;
}

*{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:
    radial-gradient(1100px 480px at 50% -220px, #1d2f27 0%, transparent 70%),
    var(--bg);
  color:var(--ink);
  font:16px/1.55 ui-sans-serif,system-ui,-apple-system,"SF Pro Text",Segoe UI,Roboto,sans-serif;
  padding:0 0 max(48px,env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;
}

main{max-width:640px;margin:0 auto;padding:0 16px}

/* ---------- hero ---------- */
.hero{max-width:640px;margin:0 auto;padding:34px 16px 18px;text-align:center}
.hero-mark{
  width:46px;height:46px;margin:0 auto 12px;border-radius:50%;
  background:
    radial-gradient(circle at 2.6px 2.6px, rgba(126,148,134,.5) 1.05px, transparent 1.5px) 0 0/7px 7px,
    radial-gradient(circle at 35% 29%, #fff 0%, #f3f8f4 42%, #d5e1d9 100%);
  box-shadow:0 6px 22px rgba(0,0,0,.5), inset -3px -4px 9px rgba(116,138,126,.28);
}
h1{margin:0;font-size:27px;letter-spacing:-.02em;font-weight:700}
.tagline{margin:6px 0 0;color:var(--muted);font-size:15px}

/* ---------- panels ---------- */
.panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px 16px;
  margin:14px 0;
}
.panel.warn{border-color:#4a3326;background:#241a15}
.panel.warn h2{color:var(--warn)}
h2{margin:0 0 8px;font-size:19px;letter-spacing:-.01em}

.step-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.step-head h2{margin:0}
.step-num{
  flex:0 0 auto;width:25px;height:25px;border-radius:50%;
  background:var(--accent);color:var(--accent-ink);
  font-weight:700;font-size:14px;display:grid;place-items:center;
}

.hint{color:var(--muted);font-size:14px;margin:8px 0}
.hint.sub{font-size:13px;opacity:.85}
.soft{color:var(--muted)}
.tracehint{margin-top:6px;text-align:center}

.hidden{display:none !important}

/* ---------- big pick button ---------- */
.bigbtn{
  display:flex;align-items:center;justify-content:center;gap:10px;
  width:100%;min-height:60px;margin:12px 0 6px;
  background:var(--accent);color:var(--accent-ink);
  border-radius:14px;font-weight:700;font-size:17px;
  cursor:pointer;user-select:none;
}
.bigbtn:active{transform:translateY(1px)}
.bigbtn-icon{font-size:23px;line-height:1}

.gobtn{
  display:block;width:100%;min-height:56px;margin:16px 0 8px;
  background:var(--accent);color:var(--accent-ink);
  border:0;border-radius:14px;font:700 17px/1.2 inherit;cursor:pointer;
}
.gobtn:disabled{background:#2b3a34;color:#6d7b74;cursor:default}
.gobtn.secondary{background:var(--panel-2);color:var(--ink);border:1px solid var(--line)}
.gobtn:active:not(:disabled){transform:translateY(1px)}

.linkbtn{
  display:block;margin:6px auto 0;background:none;border:0;
  color:var(--muted);font:inherit;font-size:14px;text-decoration:underline;cursor:pointer;
}

.chip{
  background:var(--panel-2);color:var(--ink);
  border:1px solid var(--line);border-radius:999px;
  padding:9px 14px;font:600 14px/1 inherit;cursor:pointer;
  text-decoration:none;display:inline-block;
}
.chip:active{transform:translateY(1px)}
.chip.big{padding:12px 16px}
.chip.danger{color:var(--danger);border-color:#4a2c2c}

/* ---------- import / progress ---------- */
.importing{display:flex;gap:12px;align-items:flex-start;margin:14px 0;
  background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:13px}
.importing-text{display:flex;flex-direction:column;gap:4px;font-size:14px}
.importing-text span{color:var(--muted);font-size:13px}
.spinner{
  flex:0 0 auto;width:20px;height:20px;margin-top:2px;border-radius:50%;
  border:2px solid rgba(122,222,138,.25);border-top-color:var(--accent);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.summary{
  background:var(--panel-2);border:1px solid var(--line);border-radius:12px;
  padding:12px;font-size:14px;margin:12px 0;line-height:1.5;
}

.bar{height:9px;border-radius:99px;background:#22302b;overflow:hidden;margin:14px 0 6px}
.bar-fill{height:100%;width:0;background:var(--accent);border-radius:99px;transition:width .18s linear}
.prog-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--muted)}

/* ---------- motion trace ---------- */
.trace{
  display:block;width:100%;height:74px;
  background:#101a16;border:1px solid var(--line);border-radius:12px;
  touch-action:none;
}
.trace.tall{height:104px}
.trace.zoom{height:88px;margin:10px 0 2px}

/* ---------- swing list ---------- */
.swing-list,.done-list{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:10px}

.swing{background:var(--panel-2);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.swing.open{border-color:rgba(122,222,138,.45)}

.swing-head{
  display:flex;align-items:center;gap:12px;width:100%;
  background:none;border:0;color:inherit;font:inherit;
  padding:10px;text-align:left;cursor:pointer;
}
.thumb{
  flex:0 0 auto;width:76px;height:56px;border-radius:9px;overflow:hidden;
  background:#0c1310;display:block;
}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.swing-info{display:flex;flex-direction:column;gap:2px;flex:1 1 auto;min-width:0}
.swing-info b{font-size:16px}
.swing-sub{color:var(--muted);font-size:13px}
.swing-badge{color:var(--accent);font-size:12px;opacity:.85}
.chev{color:var(--muted);font-size:15px;padding:0 4px}

.swing-edit{padding:0 10px 12px;border-top:1px solid var(--line)}
.preview{width:100%;border-radius:11px;background:#000;margin-top:10px;display:block}

.nudges{display:flex;gap:18px;flex-wrap:wrap;margin:10px 0 4px}
.nudge-group{display:flex;align-items:center;gap:6px}
.nudge-label{color:var(--muted);font-size:13px;min-width:34px}

.swing-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}

/* ---------- tuner ---------- */
.field{margin:16px 0 4px}
.field label{display:flex;justify-content:space-between;align-items:baseline;
  font-size:14px;font-weight:600;margin-bottom:7px;gap:8px}
.opt{color:var(--accent);font-weight:600;font-size:13px}
.row{display:flex;align-items:center;gap:10px}
.rowend{color:var(--muted);font-size:12px;flex:0 0 auto}
.tuner{border-top:1px solid var(--line);padding-top:14px;margin-top:18px}

input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;
  background:transparent;height:34px;margin:0;
}
input[type=range]::-webkit-slider-runnable-track{height:5px;border-radius:99px;background:#2a3a34}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:26px;height:26px;border-radius:50%;
  background:var(--accent);border:0;margin-top:-10px;
  box-shadow:0 2px 8px rgba(0,0,0,.4);
}
input[type=range]::-moz-range-track{height:5px;border-radius:99px;background:#2a3a34}
input[type=range]::-moz-range-thumb{width:26px;height:26px;border-radius:50%;background:var(--accent);border:0}
output{color:var(--muted);font-weight:500;font-size:13px}

details.more{margin-top:14px;border-top:1px solid var(--line);padding-top:12px}
details.more summary{cursor:pointer;color:var(--muted);font-size:14px;list-style:none}
details.more summary::-webkit-details-marker{display:none}
details.more summary::before{content:"▸ ";color:var(--accent)}
details.more[open] summary::before{content:"▾ "}

.empty{
  color:var(--muted);text-align:center;padding:22px 12px;font-size:14px;
  border:1px dashed var(--line);border-radius:12px;margin-top:12px;
}

/* ---------- results ---------- */
.done-item{background:var(--panel-2);border:1px solid var(--line);border-radius:14px;padding:10px}
.done-video{width:100%;border-radius:10px;background:#000;display:block}
.done-row{display:flex;justify-content:space-between;align-items:center;gap:10px;
  margin-top:9px;font-size:13px;flex-wrap:wrap}
.done-btns{display:flex;gap:7px}

.result-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px;justify-content:center}

.detail{
  white-space:pre-wrap;word-break:break-word;font-size:12px;color:var(--muted);
  background:#0c1310;border-radius:9px;padding:10px;max-height:200px;overflow:auto;
}

footer{max-width:640px;margin:26px auto 0;padding:0 16px;color:var(--muted);
  font-size:12.5px;text-align:center;opacity:.75}

@media (min-width:560px){
  .thumb{width:96px;height:66px}
  h1{font-size:31px}
}