/* =============================================================
   motion-reel / style.css — control-room chrome around the reel
   ============================================================= */
:root{
  --ink:#05060b;
  --ink2:#0a0c17;
  --line:rgba(255,255,255,.12);
  --line2:rgba(255,255,255,.06);
  --paper:#f4f2ff;
  --dim:#8b90b8;
  --cyan:#4de3ff;
  --magenta:#ff4d8d;
  --violet:#8b5cf6;
  --lime:#c9ff4d;
  --red:#ff3b3b;
  --topbar:56px;
  --transport:104px;
  --radius:12px;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:
    radial-gradient(1200px 700px at 78% -10%, rgba(139,92,246,.20), transparent 60%),
    radial-gradient(900px 600px at 8% 110%, rgba(77,227,255,.14), transparent 62%),
    var(--ink);
  color:var(--paper);
  font-family:Inter,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
}

#app{
  height:100vh;
  height:100dvh;
  display:grid;
  /* Without an explicit column the implicit one is sized to the widest item's
     min-content — the top-right control row — which pushed the whole layout
     69px past a 390px viewport and put the export/fullscreen buttons off
     screen. minmax(0,1fr) lets the column shrink and keeps overflow local. */
  grid-template-columns:minmax(0,1fr);
  grid-template-rows:var(--topbar) 1fr var(--transport);
}

/* ---------------- top bar ---------------- */
#topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;gap:12px;
  border-bottom:1px solid var(--line2);
  background:linear-gradient(180deg, rgba(10,12,23,.92), rgba(5,6,11,.55));
  backdrop-filter:blur(14px);
  z-index:20;
}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.mark{
  width:30px;height:30px;flex:0 0 30px;border-radius:8px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--magenta));
  box-shadow:0 0 20px rgba(77,227,255,.45);
}
.mark svg{width:15px;height:15px;fill:#05060b}
.btxt{display:flex;flex-direction:column;line-height:1.24;min-width:0}
.btxt b{font-size:12.5px;letter-spacing:.16em;font-weight:700}
.btxt i{font-style:normal;font-size:11px;color:var(--dim);letter-spacing:.02em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.topright{display:flex;align-items:center;gap:8px;min-width:0}
.segmented{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;background:rgba(255,255,255,.03)}
.seg{
  appearance:none;border:0;background:transparent;color:var(--dim);
  font:600 11.5px/1 Inter,sans-serif;padding:8px 10px;cursor:pointer;
  border-right:1px solid var(--line2);transition:.16s;
}
.seg:last-child{border-right:0}
.seg:hover{color:var(--paper);background:rgba(255,255,255,.05)}
.seg.is-on{color:var(--ink);background:linear-gradient(135deg,var(--cyan),#8fe8ff)}

#quality{
  appearance:none;background:rgba(255,255,255,.04);color:var(--paper);
  border:1px solid var(--line);border-radius:9px;padding:8px 9px;
  font:600 11.5px/1 Inter,sans-serif;cursor:pointer;
}
#quality option{background:#0a0c17}

.tgl{
  appearance:none;background:rgba(255,255,255,.04);color:var(--paper);
  border:1px solid var(--line);border-radius:9px;padding:8px 10px;
  font:600 11px/1 "JetBrains Mono",monospace;letter-spacing:.06em;cursor:pointer;transition:.16s;
}
.tgl:hover{border-color:rgba(77,227,255,.5)}
.tgl.is-off{color:#838aae;opacity:.75}

.icon{
  appearance:none;background:rgba(255,255,255,.04);color:var(--paper);
  border:1px solid var(--line);border-radius:9px;
  width:34px;height:34px;display:grid;place-items:center;cursor:pointer;transition:.16s;
}
.icon svg{width:17px;height:17px;fill:currentColor;stroke:currentColor}
.icon svg [fill="none"]{fill:none}
.icon:hover{background:rgba(77,227,255,.14);border-color:rgba(77,227,255,.5)}
.icon.big{width:42px;height:42px;background:linear-gradient(135deg,var(--cyan),var(--violet));border:0;color:#05060b}
.icon.big:hover{filter:brightness(1.12)}
.icon.big svg{width:19px;height:19px}

/* ---------------- stage ---------------- */
#stage{
  position:relative;display:grid;place-items:center;
  padding:14px;min-height:0;overflow:hidden;
}
#reel{
  display:block;border-radius:var(--radius);
  background:#000;
  box-shadow:0 30px 90px rgba(0,0,0,.65), 0 0 0 1px rgba(255,255,255,.07);
  max-width:100%;max-height:100%;
}

/* export bar */
#exportBar{
  position:absolute;top:22px;left:50%;transform:translate(-50%,-14px);
  display:flex;align-items:center;gap:10px;
  padding:9px 16px;border-radius:999px;
  background:rgba(10,12,23,.9);border:1px solid rgba(255,59,59,.45);
  font:600 12px/1 Inter,sans-serif;color:#ffd9d9;
  opacity:0;pointer-events:none;transition:.25s;backdrop-filter:blur(10px);z-index:12;
}
#exportBar.is-on{opacity:1;transform:translate(-50%,0)}
#exportBar .rec{width:9px;height:9px;border-radius:50%;background:var(--red);
  animation:blink 1s infinite;box-shadow:0 0 10px var(--red)}
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:.25}}

/* ---------------- overlay ---------------- */
#overlay{
  position:absolute;inset:0;display:grid;place-items:center;
  background:radial-gradient(900px 600px at 50% 40%, rgba(11,13,32,.86), rgba(5,6,11,.96));
  backdrop-filter:blur(8px);z-index:14;cursor:pointer;
  transition:opacity .55s ease, backdrop-filter .55s ease;
}
#overlay.is-gone{opacity:0;pointer-events:none;backdrop-filter:blur(0)}
.ov-inner{text-align:center;padding:26px;max-width:640px}
.ov-kicker{font:600 11px/1 "JetBrains Mono",monospace;letter-spacing:.42em;color:var(--cyan);margin-bottom:14px}
.ov-title{
  font-family:Anton,"Arial Narrow",Impact,sans-serif;
  font-size:clamp(58px,11vw,124px);line-height:.86;letter-spacing:.02em;
  background:linear-gradient(100deg,#fff 20%,var(--cyan) 55%,var(--magenta) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 26px rgba(77,227,255,.4));
}
.ov-cn{font-size:14px;color:var(--dim);margin-top:12px;letter-spacing:.04em}
.ov-facts{
  list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:8px 22px;
  margin:20px 0 24px;font-size:12px;color:var(--dim);
}
.ov-facts b{color:var(--paper);font-family:"JetBrains Mono",monospace;font-size:14px;margin-right:4px}
.ov-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.primary{
  appearance:none;border:0;cursor:pointer;
  padding:13px 26px;border-radius:999px;
  background:linear-gradient(135deg,var(--cyan),var(--violet));color:#05060b;
  font:700 14px/1 Inter,sans-serif;letter-spacing:.04em;
  box-shadow:0 10px 34px rgba(77,227,255,.32);transition:.18s;
}
.primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(77,227,255,.45)}
.ghost{
  appearance:none;cursor:pointer;padding:13px 22px;border-radius:999px;
  background:transparent;border:1px solid var(--line);color:var(--dim);
  font:600 13px/1 Inter,sans-serif;transition:.18s;
}
.ghost:hover{color:var(--paper);border-color:rgba(255,255,255,.34)}
.ov-keys{margin-top:18px;font:500 10.5px/1.6 "JetBrains Mono",monospace;color:#838aae;letter-spacing:.04em}

/* ---------------- transport ---------------- */
#transport{
  border-top:1px solid var(--line2);
  background:linear-gradient(0deg, rgba(10,12,23,.95), rgba(5,6,11,.6));
  backdrop-filter:blur(14px);
  padding:10px 16px 6px;z-index:20;
}
.tr-row{display:flex;align-items:center;gap:10px}

.scrub{
  position:relative;flex:1;height:26px;cursor:pointer;
  display:flex;align-items:center;touch-action:none;
}
.scrub::before{
  content:"";position:absolute;left:0;right:0;height:4px;border-radius:2px;
  background:rgba(255,255,255,.1);
}
.scrub::after{
  content:"";position:absolute;left:0;width:var(--p,0%);height:4px;border-radius:2px;
  background:linear-gradient(90deg,var(--violet),var(--cyan) 60%,var(--magenta));
  box-shadow:0 0 12px rgba(77,227,255,.55);
}
.scrub i{position:absolute;width:2px;height:9px;background:rgba(255,255,255,.35);border-radius:1px;transform:translateX(-1px)}
.time{
  font:600 11.5px/1 "JetBrains Mono",monospace;color:var(--dim);
  min-width:88px;text-align:right;letter-spacing:.03em;
}

.recbtn{
  appearance:none;cursor:pointer;display:flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:9px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--paper);
  font:600 12px/1 Inter,sans-serif;transition:.16s;white-space:nowrap;
}
.recbtn .dot{width:8px;height:8px;border-radius:50%;background:var(--red);box-shadow:0 0 8px var(--red)}
.recbtn:hover{border-color:rgba(255,59,59,.55);background:rgba(255,59,59,.1)}
.recbtn.is-rec{background:rgba(255,59,59,.16);border-color:var(--red);animation:recpulse 1.4s infinite}
@keyframes recpulse{0%,100%{box-shadow:0 0 0 0 rgba(255,59,59,.4)}50%{box-shadow:0 0 0 6px rgba(255,59,59,0)}}

.chapters{position:relative;height:38px;margin-top:2px}
.chipbtn{
  position:absolute;top:6px;transform:translateX(-50%);
  appearance:none;background:transparent;border:0;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:1px;
  color:#838aae;font:600 9.5px/1.1 "JetBrains Mono",monospace;
  letter-spacing:.05em;padding:2px 4px;transition:.16s;white-space:nowrap;
}
.chipbtn .t{display:block;width:1px;height:5px;background:rgba(255,255,255,.2);margin-bottom:3px}
.chipbtn .c{font-size:9px;opacity:.6}
.chipbtn:hover{color:var(--cyan)}
.chipbtn:hover .t{background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.chipbtn:first-child{transform:translateX(0)}
.chipbtn:last-child{transform:translateX(-100%)}

/* ---------------- toast ---------------- */
.toast{
  position:fixed;left:50%;bottom:calc(var(--transport) + 18px);
  transform:translate(-50%,10px);
  padding:10px 18px;border-radius:999px;
  background:rgba(10,12,23,.95);border:1px solid var(--line);
  font:600 12px/1 Inter,sans-serif;color:var(--paper);
  opacity:0;pointer-events:none;transition:.24s;z-index:30;
  box-shadow:0 14px 40px rgba(0,0,0,.5);
}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* ---------------- responsive ---------------- */
@media (max-width:820px){
  :root{--topbar:auto;--transport:118px}
  #app{grid-template-rows:auto 1fr auto}
  #topbar{flex-wrap:wrap;padding:10px 12px;gap:9px}
  .btxt i{display:none}
  .topright{width:100%;overflow-x:auto;padding-bottom:2px}
  .topright > *{flex:0 0 auto}
  .chapters{height:30px}
  .chipbtn .c{display:none}
  .chipbtn .n{font-size:8.5px}
  .time{display:none}
  #stage{padding:8px}
}
@media (max-width:520px){
  .ov-facts{gap:6px 14px;font-size:11px}
  .recbtn span:not(.dot){display:none}
  .recbtn{padding:9px 11px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* The reel is the content, so it is not disabled here — but the surrounding
   chrome (blinking record dot, sliding panels, toast) can and should settle. */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  #exportBar .rec{animation:none}
}