:root{
  --bg:#f5f4f0; --surface:#fbfbf9; --panel:#ffffff; --panel-soft:#f7f6f2;
  --ink:#1c1c1a; --ink-hover:#3a3935; --ink-2:#55534d; --sub:#7a776f; --muted:#8a877f;
  --line:#e3e1db; --line-2:#dcdad3; --line-3:#efeee9; --hover:#efeee9; --soft:#f3f2ee; --track:#ebe9e3;
  --accent:#0b7a5a; /* 필름 그린 */
  --accent-hover:#086147;
  --accent-soft:#e3f3ec;
  --font:"IBM Plex Sans KR",sans-serif; --mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased}
button,input,select{font:inherit;color:inherit}
.mono-label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.mono{font-family:var(--mono)}
.app{min-height:100vh;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 28px;border-bottom:1px solid var(--line);background:var(--surface);flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:6px 14px;min-width:0;flex-wrap:wrap}
.brand-title{font-size:17px;font-weight:700;letter-spacing:-.01em;margin:0}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{height:36px;padding:0 14px;background:transparent;border:1px solid var(--line-2);border-radius:999px;font-size:13px;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--hover)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover{background:var(--ink-hover)}
.btn--small{height:30px;padding:0 11px;font-size:12px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (max-width:640px){ .topbar{padding:14px 16px} }

.vg{flex:1;width:100%;max-width:1320px;margin:0 auto;padding:28px;display:flex;flex-direction:column;gap:16px}
.drop{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;padding:56px 20px;border:1.5px dashed var(--line-2);border-radius:20px;background:var(--surface);cursor:pointer;transition:border-color .15s,background .15s}
.drop:hover,.drop.is-over{border-color:var(--accent);background:var(--accent-soft)}
.drop strong{font-size:16px}
.drop span{font-size:13px;color:var(--sub);line-height:1.6}
.drop-art{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.film{display:flex;gap:4px;padding:8px 6px;border-radius:6px;background:var(--ink);
  background-image:radial-gradient(circle,var(--surface) 1.6px,transparent 2px);background-size:8px 7px;background-repeat:repeat-x;background-position:2px 1px}
.film i{width:30px;height:24px;border-radius:2px;background:#5fbf9b;margin:4px 0}
.film i:nth-child(2){background:#3fa37f}.film i:nth-child(3){background:#25876a}
.gif{font-family:var(--mono);font-weight:500;font-size:14px;padding:6px 10px;border-radius:8px;background:var(--accent);color:#fff;letter-spacing:.1em}
.drop-art::before{content:"→";order:1;color:var(--muted)}
.gif{order:2}
.alert{margin:0;padding:10px 14px;border-radius:10px;background:#fdecec;color:#9b2226;font-size:13px;line-height:1.6}

.workspace{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;align-items:start;animation:rise .25s ease}
.left{display:flex;flex-direction:column;gap:12px;min-width:0}
.player{background:#111;border-radius:16px;overflow:hidden;display:grid;place-items:center;aspect-ratio:16/9}
.player video{display:block;width:100%;height:100%;object-fit:contain;background:#000}
.player-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.pbtn{width:42px;height:42px;border-radius:50%;border:none;background:var(--ink);display:grid;place-items:center;cursor:pointer}
.pbtn:hover{background:var(--ink-hover)}
.ic-play{width:0;height:0;border-left:12px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent;margin-left:3px}
.ic-pause{width:12px;height:14px;border-left:4px solid #fff;border-right:4px solid #fff}
.now{font-size:16px;font-weight:500;font-variant-numeric:tabular-nums}
.player-bar .mono-label{margin-left:auto}

.timeline-card{padding:14px;background:var(--panel);border:1px solid var(--line);border-radius:16px;display:flex;flex-direction:column;gap:12px}
.track{position:relative;height:64px;border-radius:10px;background:#222;overflow:hidden;touch-action:none;cursor:pointer;user-select:none;-webkit-user-select:none}
.strip{position:absolute;inset:0;display:flex}
.strip img{flex:1;min-width:0;height:100%;object-fit:cover;opacity:.9}
.shade{position:absolute;top:0;bottom:0;background:rgba(15,15,15,.62);pointer-events:none}
.shade--l{left:0}.shade--r{right:0}
.sel{position:absolute;top:0;bottom:0;border:3px solid var(--accent);border-left:0;border-right:0;pointer-events:none}
.cursor{position:absolute;top:0;bottom:0;width:2px;margin-left:-1px;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.35);pointer-events:none}
.handle{position:absolute;top:0;bottom:0;width:18px;margin-left:-9px;border:0;padding:0;background:transparent;cursor:ew-resize;touch-action:none}
.handle::before{content:"";position:absolute;top:0;bottom:0;left:3px;width:12px;border-radius:4px;background:var(--accent)}
.handle::after{content:"";position:absolute;top:50%;left:8px;width:2px;height:18px;margin-top:-9px;background:rgba(255,255,255,.8);border-radius:1px}
.handle:focus-visible{outline:none}
.handle:focus-visible::before{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--accent)}
.range-row{display:flex;align-items:flex-end;gap:8px 10px;flex-wrap:wrap}
.time{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--ink-2)}
.time-input{width:104px;height:36px;padding:0 10px;border:1px solid var(--line-2);border-radius:10px;background:var(--surface);font-family:var(--mono);font-size:13.5px;color:var(--ink)}
.time-input.is-bad{border-color:#e5484d}
.range-row .btn--small{height:36px}
.time--len{margin-left:auto}
.time--len output{height:36px;display:flex;align-items:center;font-family:var(--mono);font-size:14px;font-weight:500;color:var(--accent)}

.panel{display:flex;flex-direction:column;gap:12px;min-width:0}
.box{display:flex;flex-direction:column;gap:12px;padding:16px;background:var(--panel);border:1px solid var(--line);border-radius:16px}
.box-title{margin:0;font-size:14px;font-weight:700}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field-label{font-size:12.5px;color:var(--ink-2)}
.select{height:38px;padding:0 8px;border:1px solid var(--line-2);border-radius:10px;background:var(--surface);font-size:13px;width:100%;min-width:0}
.estimate{margin:0;padding:10px 12px;border-radius:10px;background:var(--soft);font-size:12.5px;line-height:1.6;color:var(--ink-2)}
.estimate b{font-family:var(--mono);font-weight:500;color:var(--ink)}
.estimate .warn{color:#b54708}
.btn--make{height:46px;font-size:14.5px;background:var(--accent)}
.btn--make:hover{background:var(--accent-hover)}
.btn--make:disabled:hover{background:var(--accent)}
.progress{display:flex;flex-direction:column;gap:6px}
.progress-head{display:flex;justify-content:space-between;font-size:12.5px;color:var(--ink-2)}
.bar{height:8px;border-radius:999px;background:var(--track);overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--accent);border-radius:inherit;transition:width .15s}
.progress .btn--small{align-self:flex-end}
.result{border-color:var(--accent);animation:rise .25s ease}
.result-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.size{font-family:var(--mono);font-size:20px;font-weight:500;color:var(--accent)}
.gif-frame{border-radius:10px;overflow:hidden;background:
  repeating-conic-gradient(#eee 0 25%,#fff 0 50%) 0 0/16px 16px;display:grid;place-items:center}
.gif-frame img{display:block;max-width:100%;height:auto}
.hint{margin:0;font-size:12px;color:#b54708;line-height:1.6}
.btn--save{height:44px;font-size:14px}
.note{margin:0;font-size:12px;line-height:1.65;color:var(--sub)}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:6px;vertical-align:1px}

.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:100;max-width:calc(100vw - 32px);text-align:center}
.toast.is-show{opacity:1;transform:translate(-50%,0)}
@keyframes rise{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

@media (max-width:980px){
  .workspace{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:640px){
  .vg{padding:16px;gap:12px}
  .drop{padding:36px 16px}
  .player{border-radius:12px}
  .player-bar .mono-label{margin-left:0;width:100%}
  .time-input{width:96px}
  .time--len{margin-left:0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

/* 다크 모드 (인쇄는 라이트 그대로) — GIF 결과 미리보기(투명 체크 무늬)는 밝게 유지 */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#121614; --surface:#171b19; --panel:#1c211f; --panel-soft:#212624;
    --ink:#e9eeec; --ink-hover:#ffffff; --ink-2:#c5ccc9; --sub:#9ca5a1; --muted:#87908c;
    --line:#2a302d; --line-2:#353c39; --line-3:#232826; --hover:#262c29; --soft:#232826; --track:#323936;
    --accent:#4fd0a0; --accent-hover:#6fdcb3; --accent-soft:rgba(79,208,160,.15);
  }
  :root[data-theme="dark"] .btn--solid,:root[data-theme="dark"] .toast,:root[data-theme="dark"] .gif{color:var(--bg)}
  :root[data-theme="dark"] .ic-play{border-left-color:var(--bg)}
  :root[data-theme="dark"] .ic-pause{border-left-color:var(--bg);border-right-color:var(--bg)}
  :root[data-theme="dark"] .film{background-color:#3a423e}
  :root[data-theme="dark"] .player,:root[data-theme="dark"] .track{box-shadow:0 0 0 1px var(--line-2)}
  :root[data-theme="dark"] .handle::after{background:rgba(0,0,0,.55)}
  :root[data-theme="dark"] .alert{background:rgba(229,72,77,.16);color:#ffaaad}
  :root[data-theme="dark"] .estimate .warn,:root[data-theme="dark"] .hint{color:#f5a65f}
  :root[data-theme="dark"] .time-input.is-bad{border-color:#ff6b70}
}