:root {
  color-scheme: light;
  --ink: #1b2f2a;
  --muted: #63706b;
  --paper: #f8f5ed;
  --panel: #fffdf8;
  --line: #d8d4c9;
  --green: #17634f;
  --green-soft: #dcece4;
  --gold: #9b6a18;
  --gold-soft: #f4e8cd;
  --red: #9e3f35;
  --red-soft: #f4dfdb;
  font-family: Pretendard, "Noto Sans KR", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); }
button, select, textarea, input { font: inherit; }
button, select { min-height: 42px; }
button { cursor: pointer; }
button:disabled { cursor: default; opacity: .42; }
button:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible { outline: 3px solid #d59d36; outline-offset: 3px; }
.skip-link { position: fixed; z-index: 100; top: -5rem; left: 1rem; padding: .7rem 1rem; border-radius: 999px; background: #fff; color: var(--ink); }
.skip-link:focus { top: 1rem; }

.review-header { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; align-items: end; padding: 34px clamp(24px, 5vw, 72px); border-bottom: 1px solid var(--line); background: #eee8db; }
.brand { color: var(--green); font-size: .8rem; font-weight: 800; text-decoration: none; }
.eyebrow { margin: 20px 0 7px; color: var(--gold); font-size: .7rem; font-weight: 900; letter-spacing: .14em; }
h1 { margin: 0; font: 800 clamp(2rem, 4vw, 3.4rem)/1.1 "Batang", Georgia, serif; letter-spacing: -.04em; }
.lead { max-width: 720px; margin: 13px 0 0; color: var(--muted); line-height: 1.65; }
.semester-form { display: flex; gap: 9px; align-items: end; padding: 13px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.52); }
.semester-form label { display: grid; gap: 5px; color: var(--muted); font-size: .72rem; font-weight: 800; }
.semester-form select, .semester-form button { border: 1px solid #bbb6aa; border-radius: 10px; padding: 0 12px; background: #fff; color: var(--ink); }
.semester-form button { border-color: var(--green); background: var(--green); color: #fff; font-weight: 800; }

.review-shell { display: grid; grid-template-columns: 290px minmax(0, 1fr); min-height: calc(100vh - 260px); }
.semester-rail { position: sticky; top: 0; align-self: start; max-height: calc(100vh - 82px); overflow-y: auto; padding: 24px 20px 110px; border-right: 1px solid var(--line); background: #f2eee4; }
.rail-summary { padding: 0 4px 15px; }
.rail-summary p { margin: 0; color: var(--gold); font-size: .72rem; font-weight: 900; }
.rail-summary strong { display: block; margin-top: 5px; font: 800 1.2rem/1.3 "Batang", Georgia, serif; }
.progress-track { display: block; height: 5px; margin-top: 10px; overflow: hidden; border-radius: 99px; background: #d7d1c4; }
.progress-track i { display: block; width: 0; height: 100%; background: var(--green); transition: width .2s ease; }
.episode-list { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.episode-list button { display: grid; grid-template-columns: 32px minmax(0, 1fr) 16px; gap: 9px; align-items: center; width: 100%; border: 1px solid transparent; border-radius: 12px; padding: 8px; background: transparent; color: var(--ink); text-align: left; }
.episode-list button:hover { background: rgba(255,255,255,.7); }
.episode-list button[aria-current="true"] { border-color: #b8cfc3; background: #fff; box-shadow: 0 5px 20px rgba(33,55,47,.06); }
.episode-number { display: grid; place-items: center; width: 30px; aspect-ratio: 1; border-radius: 50%; background: #dfd9cc; font-size: .72rem; font-weight: 800; }
.episode-name { overflow: hidden; font-size: .78rem; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
.episode-state { width: 11px; aspect-ratio: 1; border: 2px solid #bcb6aa; border-radius: 50%; }
.episode-state[data-status="pass"] { border-color: var(--green); background: var(--green); }
.episode-state[data-status="issue"] { border-color: var(--red); background: var(--red); }
.episode-state[data-status="later"] { border-color: var(--gold); background: var(--gold); }
.rail-actions { display: grid; gap: 7px; margin-top: 18px; }
.rail-actions button { border: 1px solid #bcb6aa; border-radius: 10px; background: #fff; color: var(--ink); font-size: .72rem; font-weight: 800; }
.rail-actions .quiet { border-color: transparent; background: transparent; color: var(--muted); }

.episode-review { min-width: 0; padding: 36px clamp(24px, 5vw, 72px) 150px; }
.loading-state, .error-state { max-width: 680px; margin: 80px auto; padding: 30px; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); text-align: center; }
.story-head { display: grid; grid-template-columns: minmax(0, 1fr) 240px; gap: 28px; align-items: start; }
.story-meta { margin: 0 0 8px; color: var(--gold); font-size: .72rem; font-weight: 900; letter-spacing: .08em; }
.story-head h2 { margin: 0; font: 800 clamp(1.8rem, 3.2vw, 3rem)/1.2 "Batang", Georgia, serif; letter-spacing: -.04em; }
.story-arc { margin: 12px 0 0; color: var(--muted); line-height: 1.6; }
.play-link { display: inline-flex; align-items: center; min-height: 42px; margin-top: 16px; border: 1px solid var(--green); border-radius: 999px; padding: 0 15px; color: var(--green); font-size: .78rem; font-weight: 900; text-decoration: none; }
.hero-image { width: 100%; aspect-ratio: 4 / 3; border-radius: 18px; object-fit: cover; box-shadow: 0 16px 35px rgba(36,48,42,.14); }
.review-status { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 30px 0 12px; }
.review-status button { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); color: var(--ink); font-weight: 800; }
.review-status button[data-verdict="pass"][aria-pressed="true"] { border-color: var(--green); background: var(--green-soft); color: var(--green); }
.review-status button[data-verdict="issue"][aria-pressed="true"] { border-color: var(--red); background: var(--red-soft); color: var(--red); }
.review-status button[data-verdict="later"][aria-pressed="true"] { border-color: var(--gold); background: var(--gold-soft); color: var(--gold); }
.note-label { display: grid; gap: 7px; color: var(--muted); font-size: .76rem; font-weight: 800; }
.review-note { width: 100%; min-height: 88px; resize: vertical; border: 1px solid var(--line); border-radius: 13px; padding: 12px 14px; background: var(--panel); color: var(--ink); line-height: 1.6; }
.save-state { min-height: 1.2em; margin: 6px 1px 0; color: var(--green); font-size: .7rem; }

.section-block { margin-top: 34px; }
.section-block > h3 { display: flex; align-items: center; gap: 9px; margin: 0 0 13px; font: 800 1.24rem/1.35 "Batang", Georgia, serif; }
.section-block > h3 span { display: grid; place-items: center; min-width: 27px; height: 27px; border-radius: 50%; background: var(--green); color: #fff; font: 800 .68rem/1 system-ui, sans-serif; }
.scene-list, .task-list { display: grid; gap: 10px; }
.scene-card, .task-card, .continuity-card, .completion-card { border: 1px solid var(--line); border-radius: 15px; background: var(--panel); }
.scene-card { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 16px; padding: 16px 18px; }
.scene-card .scene-label { color: var(--gold); font-size: .68rem; font-weight: 900; }
.scene-card h4, .task-card h4 { margin: 0; font-size: .96rem; }
.scene-card p, .task-card p { margin: 7px 0 0; color: #34453f; line-height: 1.72; word-break: keep-all; }
.scene-card.expedition { border-color: #d9c28e; background: #fffbef; }
.scene-card.expedition .scene-label { color: #866016; }
.task-card { padding: 17px 18px; }
.task-label { margin: 0 0 5px !important; color: var(--muted) !important; font-size: .68rem; font-weight: 900; letter-spacing: .06em; }
.answer-list { display: grid; gap: 6px; margin: 12px 0 0; padding: 0; list-style: none; }
.answer-list li { padding: 8px 10px; border-radius: 9px; background: #f1eee6; color: #47564f; font-size: .78rem; }
.answer-list li.is-answer { background: var(--green-soft); color: var(--green); font-weight: 900; }
.answer-list li.is-route { background: var(--gold-soft); color: #6c4a10; }
.evidence { display: inline-block; margin-top: 10px; border-radius: 999px; padding: 5px 9px; background: #e9e5dc; color: var(--muted); font-size: .68rem; }
.continuity-card, .completion-card { padding: 18px; }
.continuity-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.continuity-grid div { padding: 13px; border-radius: 11px; background: #f3efe6; }
.continuity-grid b { display: block; margin-bottom: 6px; color: var(--gold); font-size: .7rem; }
.continuity-grid p, .completion-card p { margin: 0; color: #42524b; font-size: .8rem; line-height: 1.65; }
.vocabulary-list { display: flex; flex-wrap: wrap; gap: 7px; margin: 0; padding: 0; list-style: none; }
.vocabulary-list li { border: 1px solid var(--line); border-radius: 999px; padding: 7px 10px; background: var(--panel); font-size: .75rem; }
.vocabulary-list b { color: var(--green); }

.review-footer { position: fixed; z-index: 20; left: 0; right: 0; bottom: 0; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px clamp(20px, 4vw, 58px); border-top: 1px solid #cbc5b8; background: rgba(247,244,236,.95); box-shadow: 0 -10px 30px rgba(39,48,43,.08); backdrop-filter: blur(14px); }
.review-footer p { margin: 0; color: var(--muted); font-size: .7rem; }
kbd { border: 1px solid #bbb5a8; border-bottom-width: 2px; border-radius: 5px; padding: 1px 5px; background: #fff; color: var(--ink); font-size: .65rem; }
.review-footer div { display: flex; gap: 8px; flex: none; }
.review-footer button { border: 1px solid #bdb7aa; border-radius: 999px; padding: 0 15px; background: #fff; color: var(--ink); font-size: .76rem; font-weight: 900; }
.review-footer .primary { border-color: var(--green); background: var(--green); color: #fff; }

@media (max-width: 900px) {
  .review-header { grid-template-columns: 1fr; }
  .semester-form { justify-self: start; }
  .review-shell { grid-template-columns: 1fr; }
  .semester-rail { position: static; max-height: none; padding: 18px 20px; border-right: 0; border-bottom: 1px solid var(--line); }
  .episode-list { grid-template-columns: repeat(6, 1fr); }
  .episode-list button { display: flex; justify-content: center; padding: 5px; }
  .episode-name { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .episode-state { width: 8px; }
  .rail-actions { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .review-header { padding: 24px 18px; }
  .semester-form { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
  .semester-form button { grid-column: 1 / -1; }
  .episode-list { grid-template-columns: repeat(4, 1fr); }
  .episode-review { padding: 26px 18px 170px; }
  .story-head { grid-template-columns: 1fr; }
  .hero-image { max-height: 210px; }
  .review-status { grid-template-columns: 1fr; }
  .scene-card { grid-template-columns: 1fr; gap: 6px; }
  .continuity-grid { grid-template-columns: 1fr; }
  .review-footer { align-items: stretch; flex-direction: column; }
  .review-footer p { display: none; }
  .review-footer div, .review-footer button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}