/* ───────── 폰트 ───────── */
@font-face {
  font-family: "Pretendard";
  font-weight: 45 920;
  font-style: normal;
  font-display: swap;
  src: url("../fonts/PretendardVariable.woff2") format("woff2-variations"),
       url("../fonts/PretendardVariable.woff2") format("woff2");
}

/* ───────── 편집 화면 색상 ─────────
 * 기본은 다크. 시스템이 라이트이거나 직접 라이트를 고르면 아래 라이트 값으로 바뀐다. */
:root {
  color-scheme: dark;
  --bg: #15171c;
  --panel: #1d2027;
  --panel-2: #252932;
  --line: #333845;
  --line-strong: #4a5163;
  --hover: #2c313c;
  --hover-soft: rgba(255, 255, 255, .03);
  --field: #14161b;
  --checker: #1a1c22;
  --stripe: rgba(255, 255, 255, .07);
  --stripe-line: rgba(255, 255, 255, .18);
  --playhead: #ffffff;
  --text: #e8eaf0;
  --muted: #9097a6;
  --accent: #7c9cff;
  --accent-ink: #0d1330;
  --accent-soft: rgba(124, 156, 255, .12);
  --danger: #ff7b7b;
  --side-a: #ff9d6c;
  --side-b: #6cc8ff;
  --bgtrack: #b79cff;
  --side-a-ink: #ff9d6c;
  --side-b-ink: #6cc8ff;
  --bgtrack-ink: #b79cff;
  --shadow: rgba(0, 0, 0, .5);
  --radius: 8px;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #eceff4; --panel: #ffffff; --panel-2: #f5f6f9; --line: #d8dce4; --line-strong: #b4bbc8;
    --hover: #eaedf2; --hover-soft: rgba(0, 0, 0, .03); --field: #ffffff; --checker: #e2e5eb;
    --stripe: rgba(0, 0, 0, .06); --stripe-line: rgba(0, 0, 0, .2); --playhead: #1b1f27;
    --text: #1b1f27; --muted: #626a79; --accent: #3f5fe0; --accent-ink: #ffffff; --accent-soft: rgba(63, 95, 224, .1);
    --danger: #d23b3b; --side-a: #ffb48c; --side-b: #8fd3fa; --bgtrack: #c9b4ff;
    --side-a-ink: #c4541c; --side-b-ink: #1a7fb8; --bgtrack-ink: #6c4bd1; --shadow: rgba(20, 30, 50, .22);
  }
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #eceff4; --panel: #ffffff; --panel-2: #f5f6f9; --line: #d8dce4; --line-strong: #b4bbc8;
  --hover: #eaedf2; --hover-soft: rgba(0, 0, 0, .03); --field: #ffffff; --checker: #e2e5eb;
  --stripe: rgba(0, 0, 0, .06); --stripe-line: rgba(0, 0, 0, .2); --playhead: #1b1f27;
  --text: #1b1f27; --muted: #626a79; --accent: #3f5fe0; --accent-ink: #ffffff; --accent-soft: rgba(63, 95, 224, .1);
  --danger: #d23b3b; --side-a: #ffb48c; --side-b: #8fd3fa; --bgtrack: #c9b4ff;
  --side-a-ink: #c4541c; --side-b-ink: #1a7fb8; --bgtrack-ink: #6c4bd1; --shadow: rgba(20, 30, 50, .22);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  font-size: 13px;
  line-height: 1.45;
  overflow: hidden;
}
button, input, select, textarea { font: inherit; color: inherit; }

#app {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  grid-template-rows: 48px minmax(0, 1fr);
  height: 100vh;
  min-width: 1040px;
}

/* ───────── 상단 바 ───────── */
#topbar {
  grid-column: 1 / -1;
  display: flex; align-items: center; gap: 16px;
  padding: 0 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 800; font-size: 15px; letter-spacing: -0.01em; }
.save-status { color: var(--muted); font-size: 12px; }
.top-actions { margin-left: auto; display: flex; gap: 8px; }

/* ───────── 버튼·입력 공통 ───────── */
.btn {
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 6px;
  padding: 6px 12px; cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: var(--line-strong); background: var(--hover); }
.btn:disabled { opacity: .45; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 700; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.small { padding: 3px 8px; font-size: 12px; }
.btn.icon { padding: 3px 7px; min-width: 26px; text-align: center; }
.btn.danger:hover { border-color: var(--danger); color: var(--danger); }
.btn.active { border-color: var(--accent); color: var(--accent); }
.btn.block { display: block; width: 100%; }

input[type=text], input[type=number], select, textarea {
  width: 100%; background: var(--field); border: 1px solid var(--line); border-radius: 6px;
  padding: 6px 8px; outline: none;
}
input[type=text]:focus, input[type=number]:focus, select:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 54px; }
input[type=color] { width: 36px; height: 28px; padding: 0; border: 1px solid var(--line); border-radius: 6px; background: none; cursor: pointer; }
input[type=range] { width: 100%; accent-color: var(--accent); }
input[type=checkbox] { accent-color: var(--accent); }

/* ───────── 좌측 메뉴 ───────── */
#sidebar {
  display: flex; flex-direction: column; min-height: 0;
  background: var(--panel); border-right: 1px solid var(--line);
}
#tabs { display: flex; border-bottom: 1px solid var(--line); }
#tabs button {
  flex: 1; padding: 10px 0; background: none; border: 0; border-bottom: 2px solid transparent;
  cursor: pointer; color: var(--muted); font-weight: 600;
}
#tabs button:hover { color: var(--text); }
#tabs button.on { color: var(--text); border-bottom-color: var(--accent); }
#panel { flex: 1; overflow-y: auto; padding: 12px; }

.section { margin-bottom: 16px; }
.section > h3 {
  margin: 0 0 8px; font-size: 12px; font-weight: 700; color: var(--muted);
  text-transform: none; letter-spacing: .02em;
}
.hint { color: var(--muted); font-size: 12px; margin: 6px 0; }
.field { display: grid; grid-template-columns: 92px minmax(0, 1fr); align-items: center; gap: 8px; margin-bottom: 8px; }
.field > label { color: var(--muted); font-size: 12px; }
.field.stack { grid-template-columns: 1fr; gap: 4px; }
.field .row { display: flex; align-items: center; gap: 8px; min-width: 0; }
.field .val { width: 44px; text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; font-size: 12px; flex: none; }
.btn-row { display: flex; gap: 6px; flex-wrap: wrap; }

.item {
  border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 8px;
  background: var(--panel-2); overflow: hidden;
}
.item.open { border-color: var(--line-strong); }
.item-head { display: flex; align-items: center; gap: 8px; padding: 6px 8px; cursor: pointer; }
.item-head .thumb {
  width: 34px; height: 34px; border-radius: 4px; background: var(--field) center/cover no-repeat; flex: none;
  border: 1px solid var(--line);
}
.item-head .name { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 600; }
.item-head .num { color: var(--muted); font-variant-numeric: tabular-nums; flex: none; }
.item-head .tools { display: flex; gap: 3px; flex: none; }
.item-body { padding: 10px; border-top: 1px solid var(--line); }

.drop {
  display: flex; align-items: center; gap: 10px;
  border: 1px dashed var(--line-strong); border-radius: 6px; padding: 8px; margin-bottom: 8px; cursor: pointer;
}
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop .pic { width: 64px; height: 64px; border-radius: 4px; background: var(--field) center/cover no-repeat; flex: none; }
.drop .txt { flex: 1; color: var(--muted); font-size: 12px; }

/* ───────── 미리보기 ───────── */
#stage { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
#previewWrap {
  flex: 1; min-height: 0; display: flex; align-items: center; justify-content: center; padding: 16px 16px 30px;
  position: relative;
  background:
    linear-gradient(45deg, var(--checker) 25%, transparent 25%, transparent 75%, var(--checker) 75%) 0 0 / 20px 20px,
    linear-gradient(45deg, var(--checker) 25%, transparent 25%, transparent 75%, var(--checker) 75%) 10px 10px / 20px 20px,
    var(--bg);
}
.preview-hint {
  position: absolute; left: 0; right: 0; bottom: 8px; text-align: center;
  font-size: 11px; color: var(--muted); pointer-events: none;
}
#preview {
  max-width: 100%; max-height: 100%; aspect-ratio: 16 / 9; height: auto; width: auto;
  box-shadow: 0 8px 40px var(--shadow); background: #000;
  touch-action: none;
}

/* ───────── 타임라인 ───────── */
#timeline { flex: none; background: var(--panel); border-top: 1px solid var(--line); }
.tl-bar { display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.tl-time { font-variant-numeric: tabular-nums; color: var(--muted); min-width: 108px; }
.tl-modes { display: flex; }
.tl-modes .btn { border-radius: 0; margin-left: -1px; }
.tl-modes .btn:first-child { border-radius: 6px 0 0 6px; margin-left: 0; }
.tl-modes .btn:last-child { border-radius: 0 6px 6px 0; }
.tl-modes .btn.active { background: var(--accent-soft); position: relative; z-index: 1; }
.tl-spacer { flex: 1; }

.tl-body { display: grid; grid-template-columns: 64px minmax(0, 1fr); }
.tl-labels { border-right: 1px solid var(--line); }
.tl-labels div { height: 30px; display: flex; align-items: center; padding-left: 12px; font-size: 11px; font-weight: 700; color: var(--muted); }
.tl-labels div.ruler-label { height: 24px; }
.tl-labels .la { color: var(--side-a-ink); }
.tl-labels .lb { color: var(--side-b-ink); }
.tl-labels .lg { color: var(--bgtrack-ink); }
.tl-scroll { overflow-x: auto; overflow-y: hidden; position: relative; }
.tl-track { position: relative; display: flex; min-width: 100%; width: max-content; }
.tl-scene { flex: none; border-right: 1px solid var(--line); cursor: pointer; position: relative; }
.tl-scene:hover { background: var(--hover-soft); }
.tl-scene.sel { background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }
.tl-ruler { height: 24px; display: flex; align-items: center; gap: 6px; padding: 0 6px; font-size: 11px; color: var(--muted); border-bottom: 1px solid var(--line); white-space: nowrap; overflow: hidden; }
.tl-ruler b { color: var(--text); font-weight: 700; }
.tl-cell { height: 30px; padding: 3px 4px; display: flex; }
.tl-chip {
  flex: 1; min-width: 0; border-radius: 4px; padding: 0 6px; display: flex; align-items: center; gap: 5px;
  font-size: 11px; white-space: nowrap; overflow: hidden; color: #10131a; font-weight: 600;
}
.tl-chip span { overflow: hidden; text-overflow: ellipsis; }
.tl-chip i { width: 18px; height: 18px; border-radius: 3px; background: rgba(0, 0, 0, .25) center/cover no-repeat; flex: none; }
.tl-chip.a { background: var(--side-a); }
.tl-chip.b { background: var(--side-b); }
.tl-chip.g { background: var(--bgtrack); }
.tl-chip.keep { background: transparent; color: var(--muted); border: 1px dashed var(--line); font-weight: 400; }
.tl-trans { position: absolute; left: 0; top: 24px; bottom: 0; background: repeating-linear-gradient(135deg, var(--stripe) 0 4px, transparent 4px 8px); pointer-events: none; border-right: 1px dashed var(--stripe-line); }
.tl-playhead { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--playhead); pointer-events: none; z-index: 3; }
.tl-playhead::before { content: ""; position: absolute; top: 0; left: -5px; border: 6px solid transparent; border-top-color: var(--playhead); }

.tl-inspector { display: flex; align-items: center; gap: 14px; padding: 8px 12px; border-top: 1px solid var(--line); flex-wrap: wrap; min-height: 46px; }
.tl-inspector .grp { display: flex; align-items: center; gap: 6px; }
.tl-inspector label { color: var(--muted); font-size: 12px; white-space: nowrap; }
.tl-inspector select { width: auto; max-width: 150px; padding: 4px 6px; }
.tl-inspector input[type=number] { width: 72px; padding: 4px 6px; }
.tl-inspector .title { font-weight: 800; min-width: 52px; }
.tl-inspector .sep { width: 1px; align-self: stretch; background: var(--line); }

/* ───────── 진행 창·알림 ───────── */
#overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, .6); display: flex; align-items: center; justify-content: center; z-index: 50; }
#overlay[hidden] { display: none; }
.modal { width: 360px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; text-align: center; }
.modal-title { font-weight: 800; font-size: 15px; margin-bottom: 14px; }
.modal-text { color: var(--muted); margin: 10px 0 14px; font-variant-numeric: tabular-nums; }
.progress { height: 8px; background: var(--field); border-radius: 4px; overflow: hidden; }
.progress > div { height: 100%; width: 0; background: var(--accent); transition: width .1s; }
#toast {
  position: fixed; left: 50%; top: 60px; transform: translateX(-50%); z-index: 60;
  background: var(--panel-2); border: 1px solid var(--line-strong); border-radius: 8px; padding: 10px 16px; max-width: 80vw;
  box-shadow: 0 8px 30px var(--shadow);
}
#toast[hidden] { display: none; }