:root {
  --paper: #f3eee4;
  --paper-deep: #e7dece;
  --ink: #211f1b;
  --muted: #6d665d;
  --line: #d9cfbe;
  --red: #8f312d;
  --red-dark: #6f211f;
  --green: #51664b;
  --gold: #a47c37;
  --white: #fffdf8;
  --shadow: 0 14px 38px rgba(55, 45, 31, .09);
  --radius: 24px;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--paper); color: var(--ink); }
body { font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif; }
button { font: inherit; }
button:focus-visible { outline: 3px solid rgba(143,49,45,.25); outline-offset: 3px; }
.hidden { display: none !important; }
.app-shell { max-width: 1160px; margin: 0 auto; padding: 24px; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 28px; }
.brand-wrap { display: flex; align-items: center; gap: 12px; }
.seal { width: 46px; height: 46px; border: 2px solid var(--red); color: var(--red); display: grid; place-items: center; font-family: serif; font-size: 25px; font-weight: 700; transform: rotate(-2deg); }
.seal.large { width: 68px; height: 68px; font-size: 38px; margin-bottom: 20px; }
.brand { font-family: serif; font-size: 23px; font-weight: 800; letter-spacing: -.02em; }
.subtitle { color: var(--muted); font-size: 13px; margin-top: 3px; }
.card { background: rgba(255,253,248,.92); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.hero-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 16px; }
.hero-card { padding: 30px; min-height: 220px; display: flex; flex-direction: column; justify-content: space-between; grid-row: span 1; }
.hero-card h1 { font-family: serif; font-size: clamp(28px, 3vw, 44px); margin: 8px 0; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.stat-card { padding: 24px; display: flex; flex-direction: column; min-height: 140px; justify-content: center; }
.stat-card strong { font-family: serif; font-size: 28px; margin: 8px 0; }
.stat-label { color: var(--muted); font-size: 13px; }
.small { font-size: 12px; }
.muted { color: var(--muted); line-height: 1.7; }
.primary-btn, .secondary-btn, .ghost-btn, .dont-know-btn, .icon-btn { border: 0; cursor: pointer; transition: .18s ease; }
.primary-btn { background: var(--red); color: white; padding: 13px 20px; border-radius: 14px; font-weight: 800; }
.primary-btn:hover { background: var(--red-dark); transform: translateY(-1px); }
.secondary-btn { background: var(--paper-deep); color: var(--ink); padding: 13px 20px; border-radius: 14px; font-weight: 700; }
.secondary-btn:hover { filter: brightness(.97); }
.ghost-btn { background: transparent; border: 1px solid var(--line); padding: 9px 13px; border-radius: 12px; color: var(--muted); }
.ghost-btn:hover { background: rgba(255,255,255,.55); color: var(--ink); }
.wide { width: 100%; padding: 15px 20px; }
.progress, .quiz-progress { background: #e9e1d5; overflow: hidden; border-radius: 99px; }
.progress { height: 8px; display: block; margin-top: 8px; }
.progress > span, .quiz-progress > span { display: block; height: 100%; width: 0; background: var(--red); transition: width .25s ease; }
.content-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 16px; margin-top: 16px; }
.content-grid > .card, .path-card { padding: 28px; }
.path-card { margin-top: 16px; }
.section-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.section-head h2 { margin: 4px 0 18px; font-family: serif; font-size: 24px; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; color: var(--red); font-weight: 900; font-size: 12px; margin: 0 0 8px; }
.pill { border: 1px solid var(--line); background: var(--paper); border-radius: 999px; padding: 8px 12px; font-size: 12px; font-weight: 800; }
.skill-bars { display: grid; gap: 18px; }
.skill-row { display: grid; gap: 8px; }
.skill-label { display: flex; justify-content: space-between; font-size: 14px; }
.skill-track { height: 10px; border-radius: 99px; background: #e9e1d5; overflow: hidden; }
.skill-fill { height: 100%; background: var(--green); border-radius: inherit; }
.goal-list { display: grid; gap: 12px; }
.goal-row { display: flex; justify-content: space-between; border-bottom: 1px dashed var(--line); padding: 10px 0; }
.path { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.path-step { border: 1px solid var(--line); border-radius: 18px; padding: 18px; background: var(--paper); min-height: 126px; }
.path-step.active { border-color: var(--red); box-shadow: inset 0 0 0 1px var(--red); }
.path-step .num { font-family: serif; font-size: 26px; color: var(--red); }
.path-step h3 { margin: 8px 0 4px; font-size: 16px; }
.path-step p { margin: 0; font-size: 12px; color: var(--muted); line-height: 1.5; }
.quiz-shell { max-width: 760px; margin: 42px auto 0; padding: 30px; }
.quiz-topline { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 14px; }
.quiz-progress { height: 11px; }
.quiz-counter { color: var(--muted); font-size: 13px; font-weight: 800; }
.icon-btn { width: 36px; height: 36px; border-radius: 50%; background: var(--paper); color: var(--muted); font-size: 23px; }
.quiz-prompt { font-family: serif; font-size: clamp(26px, 5vw, 38px); line-height: 1.45; margin: 22px 0 10px; white-space: pre-line; }
.context-text { font-family: serif; font-size: 18px; line-height: 1.7; background: var(--paper); padding: 14px 16px; border-radius: 14px; border-left: 3px solid var(--gold); }
.options { display: grid; gap: 11px; margin-top: 24px; }
.option-btn { width: 100%; text-align: left; background: white; border: 1px solid var(--line); border-radius: 15px; padding: 15px 16px; cursor: pointer; color: var(--ink); }
.option-btn:hover { border-color: #b6aa97; transform: translateY(-1px); }
.option-btn.selected-correct { border-color: var(--green); background: #eef4eb; }
.option-btn.selected-wrong { border-color: var(--red); background: #faeeee; }
.option-btn:disabled { cursor: default; transform: none; }
.feedback { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 18px; display: flex; justify-content: space-between; gap: 18px; align-items: center; }
.feedback p { margin: 5px 0 0; color: var(--muted); line-height: 1.5; }
.reader-card { max-width: 880px; margin: 24px auto; padding: 30px; }
.source-chip { display: inline-block; background: var(--paper); border: 1px solid var(--line); padding: 7px 10px; border-radius: 999px; font-size: 12px; color: var(--muted); }
.classical-text { margin: 26px 0 8px; font-family: "Noto Serif KR", "Batang", serif; font-size: clamp(30px, 6vw, 48px); line-height: 1.8; letter-spacing: .08em; }
.char-token { display: inline-block; padding: 0 .05em; border-radius: 7px; cursor: pointer; }
.char-token:hover, .char-token.active { background: #efe0d5; color: var(--red); }
.reader-help { font-size: 13px; }
.char-info { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: center; border-top: 1px solid var(--line); margin-top: 22px; padding-top: 22px; }
.char-big { width: 78px; height: 78px; display: grid; place-items: center; background: var(--paper); border: 1px solid var(--line); border-radius: 18px; font-family: serif; font-size: 44px; }
.char-info p { margin: 5px 0 0; }
.overlay { position: fixed; inset: 0; z-index: 10; background: rgba(34,31,26,.72); backdrop-filter: blur(5px); padding: 20px; overflow: auto; }
.placement-shell { max-width: 780px; margin: 5vh auto; }
.placement-panel { background: var(--white); border-radius: 28px; border: 1px solid var(--line); padding: clamp(26px, 5vw, 48px); box-shadow: 0 24px 70px rgba(0,0,0,.18); }
.placement-panel h1 { font-family: serif; font-size: clamp(32px, 5vw, 48px); line-height: 1.25; margin: 8px 0 16px; }
.lead { font-size: 17px; color: var(--muted); line-height: 1.8; }
.test-meta { display: flex; gap: 8px; flex-wrap: wrap; margin: 24px 0; }
.test-meta span { padding: 8px 11px; border-radius: 999px; background: var(--paper); font-size: 12px; color: var(--muted); }
.dont-know-btn { display: block; margin: 18px auto 0; background: transparent; color: var(--muted); text-decoration: underline; padding: 9px 12px; }
.result-bars { margin: 26px 0; }
.advice-box { background: var(--paper); border-left: 4px solid var(--red); border-radius: 0 16px 16px 0; padding: 18px; margin: 20px 0 24px; line-height: 1.7; color: var(--muted); }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-card { grid-column: 1 / -1; }
  .content-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .app-shell { padding: 14px; }
  .topbar { align-items: flex-start; }
  .subtitle { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card { min-height: 240px; }
  .path { grid-template-columns: 1fr 1fr; }
  .content-grid > .card, .path-card, .quiz-shell, .reader-card { padding: 20px; }
  .feedback { align-items: stretch; flex-direction: column; }
  .placement-panel { padding: 25px 20px; }
  .quiz-topline { grid-template-columns: 1fr auto; }
  .quiz-topline .icon-btn { grid-row: 1; }
}

/* v0.6: keep v0.1 paper, ink and seal palette. */
a{color:var(--red);text-underline-offset:3px}button:disabled{opacity:.5;cursor:default;transform:none}h1,h2{font-family:serif}h1{font-size:clamp(28px,4vw,40px)}.brand small{font:11px sans-serif;color:var(--muted)}nav{display:flex;gap:8px;margin:20px 0 26px;border-bottom:1px solid var(--line);padding-bottom:8px;overflow:auto}nav button{white-space:nowrap;border:0;background:none;padding:12px 20px;cursor:pointer;color:var(--muted);border-radius:12px}nav button.active{background:var(--ink);color:var(--white)}.syncbar{display:flex;justify-content:space-between;gap:16px;font-size:12px;color:var(--muted);flex-wrap:wrap}.notice{padding:16px 20px;background:#e8efdf;border:1px solid #bbc7b0;border-radius:14px;margin-bottom:20px;line-height:1.7}.character-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(82px,1fr));gap:10px}.character{display:grid;gap:7px;border:1px solid var(--line);border-radius:12px;padding:15px 8px;background:var(--paper);cursor:pointer}.character strong{font:32px serif}.character span{font-size:11px;color:var(--muted)}.mastered{background:#e0ead9!important;color:#32492f!important;border-bottom:3px solid #59764c!important}.learning{background:#fbefcf!important;color:#725217!important;border-bottom:3px solid #bb973a!important}.legend{display:flex;gap:12px;font-size:12px;margin-top:18px}.legend span{padding:5px 9px;border-radius:5px}.import-panel{padding:24px;margin:20px 0}.import-panel summary{font-size:20px;font-weight:700;cursor:pointer}label{display:grid;gap:7px;margin:14px 0;font-size:14px;font-weight:600}input,select,textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink);font:inherit}textarea{resize:vertical;line-height:1.7}input:focus,select:focus,textarea:focus{outline:2px solid #8f312d77;outline-offset:2px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.inline{display:flex;align-items:center;gap:12px}.inline input{flex:1;min-width:0}.inline button{flex-shrink:0}.library-list{display:grid;gap:16px}.material-card{padding:24px}.material-card h2{margin:6px 0}.excerpt{font-family:serif;color:var(--muted);line-height:1.7}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;text-align:left}td,th{padding:12px;border-bottom:1px solid var(--line);white-space:nowrap}th{font-size:13px;color:var(--muted)}.classical-text{white-space:pre-wrap;font-size:clamp(24px,4vw,36px);overflow-wrap:anywhere}.char-token{font:inherit;color:inherit;border:0;border-bottom:3px solid transparent;background:transparent;line-height:1.65;margin:2px 1px}.preserve{white-space:pre-wrap;line-height:1.9}details{margin:20px 0}summary{cursor:pointer}progress{width:100%;height:9px;accent-color:var(--red)}hr{border:0;border-top:1px solid var(--line);margin:28px 0}dialog{border:1px solid var(--line);border-radius:22px;background:var(--white);padding:28px;width:min(520px,calc(100% - 30px));max-height:90vh;overflow:auto}dialog::backdrop{background:#211f1b88;backdrop-filter:blur(3px)}footer{display:flex;justify-content:space-between;gap:16px;padding:32px 0;color:var(--muted);font-size:12px}.hero-card{min-height:255px}#corpusSummary{margin:18px 0}#answerText{white-space:pre-line}#readerMeta{overflow-wrap:anywhere}.reader-card{max-width:none}.view{scroll-margin-top:20px}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}.inline{flex-wrap:wrap}.inline input{flex-basis:100%}.syncbar{font-size:11px}nav button{padding:11px 14px}.hero-grid{grid-template-columns:repeat(3,1fr)}.stat-card{padding:12px;min-height:110px}.stat-card strong{font-size:21px}.stat-card .small{font-size:10px}.hero-card{grid-column:1/-1;padding:24px}.import-panel{padding:18px}.section-head{flex-wrap:wrap}footer{flex-direction:column}td,th{padding:9px}.quiz-shell{margin-top:0}#questionContext{font-size:16px}#readerText{letter-spacing:0}.topbar{margin-bottom:18px}}
@media(max-width:640px){nav{gap:3px}nav button{padding:11px 8px;flex:1;font-size:13px}}