:root {
  --bg: #12110e;
  --bg2: #1b1914;
  --ink: #ebe4d4;
  --muted: #9a917e;
  --line: #3a352b;
  --accent: #c4a35a;
  --accent2: #7d8b62;
  --danger: #c45a4a;
  --ok: #6f9a6a;
  --warn: #c49a4a;
  --mono: "IBM Plex Mono", "Noto Sans Mono", ui-monospace, monospace;
  --sans: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--ink); font-family: var(--sans); }
body { display: grid; grid-template-columns: 240px 1fr; }
a { color: var(--accent); text-decoration: none; }
.rail {
  background: #0d0c0a;
  border-right: 1px solid var(--line);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  min-height: 100vh;
  position: sticky;
  top: 0;
}
.brand { display: flex; gap: 12px; align-items: center; }
.mark {
  width: 36px; height: 36px; display: grid; place-items: center;
  border: 1px solid var(--accent); color: var(--accent); font-weight: 700;
}
.brand strong { display: block; letter-spacing: 0.08em; font-size: 13px; }
.brand span { color: var(--muted); font-size: 11px; }
nav { display: flex; flex-direction: column; gap: 6px; }
nav a {
  color: var(--muted);
  padding: 8px 10px;
  border-left: 2px solid transparent;
}
nav a.on { color: var(--ink); border-left-color: var(--accent); background: #1a1813; }
.rail-meta { margin-top: auto; display: flex; flex-direction: column; gap: 8px; }
.pill {
  font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase;
  border: 1px solid var(--line); padding: 6px 8px; color: var(--muted);
}
.pill.ok { border-color: var(--ok); color: var(--ok); }
.pill.bad { border-color: var(--danger); color: var(--danger); }
.pill.warn { border-color: var(--warn); color: var(--warn); }
.cost em { display: block; color: var(--muted); font-style: normal; font-size: 11px; }
.cost b { font-size: 22px; color: var(--accent); }
.cost small { display: block; color: var(--muted); font-size: 11px; margin-top: 4px; }
main { padding: 28px 36px 80px; max-width: 1200px; }
h1 { font-size: 22px; font-weight: 600; margin: 0 0 6px; letter-spacing: -0.02em; }
.sub { color: var(--muted); margin: 0 0 22px; font-size: 13px; }
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: 1fr 1fr; }
.grid.three { grid-template-columns: 1fr 1fr 1fr; }
.card {
  background: var(--bg2);
  border: 1px solid var(--line);
  padding: 16px 18px;
}
.card h2, .card h3 { margin: 0 0 12px; font-size: 14px; font-weight: 600; color: var(--accent); }
label { display: block; font-size: 12px; color: var(--muted); margin: 10px 0 4px; }
input, select, textarea {
  width: 100%;
  background: #100f0c;
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 8px 10px;
  font: 13px var(--sans);
}
textarea { min-height: 120px; font-family: var(--mono); line-height: 1.45; }
.row { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }
.row > * { flex: 1; }
button, .btn {
  background: var(--accent);
  color: #1a1508;
  border: 0;
  padding: 9px 14px;
  font: 600 13px var(--sans);
  cursor: pointer;
  display: inline-block;
}
button.ghost, .btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
button.danger { background: var(--danger); color: #fff; }
.flashes { margin-bottom: 16px; }
.flash { background: #2a2314; border: 1px solid var(--accent); padding: 8px 12px; font-size: 13px; margin-bottom: 6px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 11px; letter-spacing: 0.06em; }
.topic { display: grid; grid-template-columns: 24px 1fr auto; gap: 10px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.topic b { display: block; margin-bottom: 4px; }
.muted { color: var(--muted); font-size: 12px; }
.steps { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0 20px; }
.steps form { margin: 0; }
.step-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.step-row form { margin: 0; flex: 0 0 auto; }
.step-name { font-size: 14px; }
.status { font-family: var(--mono); font-size: 12px; color: var(--accent2); }
pre, .mono { font-family: var(--mono); font-size: 12px; white-space: pre-wrap; }
.scene { margin-bottom: 16px; border-left: 3px solid transparent; padding-left: 10px; }
.scene.is-active, .clip.is-active {
  border-left: 3px solid var(--warn);
  background: #241c10;
}
.scene.is-ready, .clip.is-ready {
  border-left: 3px solid var(--ok);
  background: #162016;
}
.scene.is-error, .clip.is-error {
  border-left: 3px solid var(--danger);
  background: #241414;
}
video { width: 220px; background: #000; display: block; margin-top: 8px; }
.final-video { width: min(360px, 100%); }
audio { width: 100%; margin-top: 8px; }
.tabs { display: flex; gap: 0; margin: 0 0 16px; border-bottom: 1px solid var(--line); }
.tab {
  background: transparent;
  color: var(--muted);
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 10px 14px;
  font: 600 13px var(--sans);
  cursor: pointer;
}
.tab.on { color: var(--ink); border-bottom-color: var(--accent); }
.tab-panel { margin-bottom: 8px; }
.step-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 12px; }
.step-head h2 { margin: 0 0 4px; }
.clip-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.clip video { width: 100%; }
.clip textarea { min-height: 160px; font-size: 11px; }
.progress-bar { margin: 0 0 16px; padding: 12px 14px; border: 1px solid var(--warn); background: #241c10; }
.progress-track { height: 6px; background: #100f0c; margin-bottom: 8px; overflow: hidden; }
.progress-fill { height: 100%; width: 30%; background: var(--accent); animation: pulse 1.2s infinite linear; }
@keyframes pulse { 0% { margin-left: -30%; } 100% { margin-left: 100%; } }
button:disabled, .run-btn:disabled { opacity: 0.4; cursor: not-allowed; }
@media (max-width: 900px) {
  body { grid-template-columns: 1fr; }
  .rail { position: relative; min-height: auto; flex-direction: row; flex-wrap: wrap; }
  .grid.two, .grid.three { grid-template-columns: 1fr; }
}