/* 천천히랩 관리 화면 — 홈페이지(workbook.html)와 같은 색과 글자를 씁니다.
   화면을 쓰는 사람이 관리자와 강사뿐이라 홈페이지보다 조금 촘촘합니다. */

:root {
  --paper:    #F6F7F4;
  --paper-2:  #FFFFFF;
  --paper-3:  #ECEFE9;
  --line:     #D7DDD3;
  --line-2:   #C3CBBE;

  --ink:      #15201C;
  --ink-2:    #4C5852;
  --ink-3:    #646F68;

  --accent:      #0F5D4C;
  --accent-deep: #0A4638;
  --accent-wash: #E5EFEA;
  --on-accent:   #F6F7F4;

  --marker:   #FFE45E;
  --warn:     #A33A2A;
  --warn-wash:#FBEDE9;

  --mono: ui-monospace, "Cascadia Mono", "Consolas", "D2Coding", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard",
          "Segoe UI", "Noto Sans KR", "Malgun Gothic", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #141917; --paper-2: #1B211E; --paper-3: #222925;
    --line: #2C3430; --line-2: #3D4642;
    --ink: #ECF1EE; --ink-2: #A6B2AC; --ink-3: #76837C;
    --accent: #74CFAE; --accent-deep: #9BE0C6; --accent-wash: #17302A; --on-accent: #0C1512;
    --marker: #5A4413; --warn: #E9948A; --warn-wash: #33201C;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: -0.012em;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 800; line-height: 1.35; letter-spacing: -0.03em; }
p  { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a  { color: var(--accent); }

:where(a, button, input, select, textarea):focus-visible {
  outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 3px;
}

.wrap { max-width: 1080px; margin-inline: auto; padding-inline: 1.25rem; }

/* ── 머리 ─────────────────────────────────── */
.top {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.top > .wrap { display: flex; align-items: center; gap: 1rem; padding-block: 0.7rem; }
.brand {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 800; font-size: 1.05rem; letter-spacing: -0.04em;
  text-decoration: none; color: inherit;
}
.brand-mark {
  width: 1.5rem; height: 1.5rem; flex: none;
  border: 1.5px solid var(--accent); border-radius: 5px;
  display: grid; place-items: center; color: var(--accent);
}
.top .who { margin-left: auto; display: flex; align-items: center; gap: 0.7rem; font-size: 0.9rem; color: var(--ink-2); }

.role-chip {
  font-family: var(--mono); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.06em;
  padding: 0.15rem 0.5rem; border-radius: 4px;
  background: var(--accent-wash); color: var(--accent); border: 1px solid transparent;
}
.role-chip[data-role="none"] { background: var(--warn-wash); color: var(--warn); }

/* 아직 손 안 댄 것이 몇 개인지 — 알림을 놓쳐도 여기서 보입니다 */
.badge {
  display: inline-grid; place-items: center; min-width: 1.15rem; height: 1.15rem;
  margin-left: 0.3rem; padding-inline: 0.3rem; border-radius: 999px;
  background: var(--warn); color: #fff;
  font-family: var(--mono); font-size: 0.68rem; font-weight: 700; line-height: 1;
}

/* ── 단추 ─────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  padding: 0.6rem 1.1rem; border: 1.5px solid transparent; border-radius: 7px;
  font-family: inherit; font-size: 0.95rem; font-weight: 700; letter-spacing: -0.02em;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.btn--solid  { background: var(--accent); color: var(--on-accent); }
.btn--solid:hover  { background: var(--accent-deep); }
.btn--outline{ background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn--outline:hover{ border-color: var(--accent); color: var(--accent); }
.btn--ghost  { background: transparent; color: var(--ink-2); padding-inline: 0.6rem; }
.btn--ghost:hover  { color: var(--accent); }
.btn--warn   { background: transparent; color: var(--warn); border-color: var(--warn); }
.btn--sm     { padding: 0.35rem 0.7rem; font-size: 0.85rem; border-radius: 6px; }
.btn:disabled{ opacity: 0.45; cursor: not-allowed; }
.row { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }

/* ── 카드와 표 ────────────────────────────── */
.card {
  background: var(--paper-2); border: 1px solid var(--line);
  border-radius: 12px; padding: 1.25rem;
}
.card + .card { margin-top: 1rem; }
.card-head { display: flex; align-items: baseline; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 0.9rem; }
.card-head h2 { font-size: 1.15rem; }
.card-head .sub { color: var(--ink-3); font-size: 0.9rem; }
.card-head .row { margin-left: auto; }

table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.6rem 0.5rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: 0.8rem; font-weight: 700; color: var(--ink-3); letter-spacing: 0.02em; white-space: nowrap; }
tbody tr:hover { background: var(--paper-3); }
td.num, th.num { text-align: right; font-family: var(--mono); font-size: 0.9rem; }
.table-wrap { overflow-x: auto; }

/* ── 입력 ─────────────────────────────────── */
label.field { display: block; margin-bottom: 0.8rem; }
label.field > span { display: block; font-size: 0.85rem; font-weight: 700; color: var(--ink-2); margin-bottom: 0.25rem; }
input[type="text"], input[type="email"], input[type="password"], input[type="date"],
input[type="number"], input[type="tel"], select, textarea {
  width: 100%; padding: 0.55rem 0.7rem;
  border: 1px solid var(--line-2); border-radius: 7px;
  background: var(--paper-2); color: var(--ink);
  font-family: inherit; font-size: 0.95rem;
}
textarea { min-height: 4.5rem; resize: vertical; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 0.9rem; }
@media (max-width: 620px) { .grid2 { grid-template-columns: 1fr; } }

/* ── 알림 ─────────────────────────────────── */
.note {
  padding: 0.8rem 1rem; border-radius: 9px; font-size: 0.92rem;
  background: var(--accent-wash); color: var(--ink); border: 1px solid transparent;
}
.note--warn { background: var(--warn-wash); color: var(--warn); }
.note + * { margin-top: 1rem; }
.mark { background: var(--marker); padding-inline: 0.15em; border-radius: 2px; }

/* ── 진도 체크 ────────────────────────────── */
.lessons { display: grid; gap: 0.35rem; margin-top: 0.5rem; }
.lesson {
  display: flex; align-items: center; gap: 0.7rem;
  padding: 0.5rem 0.7rem; border: 1px solid var(--line); border-radius: 8px;
  background: var(--paper-2); cursor: pointer; user-select: none;
}
.lesson:hover { border-color: var(--line-2); }
.lesson.on { background: var(--accent-wash); border-color: var(--accent); }
.lesson input { width: 1.1rem; height: 1.1rem; accent-color: var(--accent); flex: none; }
.lesson .no { font-family: var(--mono); font-size: 0.78rem; color: var(--ink-3); flex: none; min-width: 3.2rem; }
.lesson .t  { font-size: 0.92rem; }
.lesson .d  { margin-left: auto; font-size: 0.78rem; color: var(--ink-3); flex: none; }

/* 이수율 막대 */
.bar { height: 6px; border-radius: 3px; background: var(--paper-3); overflow: hidden; min-width: 60px; }
.bar > i { display: block; height: 100%; background: var(--accent); }
.rate { display: flex; align-items: center; gap: 0.5rem; }
.rate .pct { font-family: var(--mono); font-size: 0.82rem; color: var(--ink-2); min-width: 2.6rem; text-align: right; }

.pill {
  font-size: 0.75rem; font-weight: 700; padding: 0.1rem 0.45rem; border-radius: 4px;
  border: 1px solid var(--line-2); color: var(--ink-3);
}
.pill--ok   { background: var(--accent-wash); color: var(--accent); border-color: transparent; }
.pill--stop { background: var(--warn-wash); color: var(--warn); border-color: transparent; }

/* 키보드 키 — 워크북과 같은 모양 */
.key {
  font-family: var(--mono); font-size: 0.82em; font-weight: 600;
  border: 1px solid var(--line-2); border-bottom-width: 2px; border-radius: 4px;
  padding: 0.05em 0.35em; background: var(--paper-2); white-space: nowrap;
}

/* ── 로그인 화면 ──────────────────────────── */
.auth { max-width: 400px; margin: 4rem auto; }
.auth .card { padding: 1.6rem; }
.auth h1 { font-size: 1.4rem; margin-bottom: 0.4rem; }
.auth .lead { color: var(--ink-2); font-size: 0.95rem; margin-bottom: 1.2rem; }
.auth .swap { text-align: center; margin-top: 1rem; font-size: 0.9rem; color: var(--ink-2); }

/* ── 학습 공간 ────────────────────────────── */
.hl { background: var(--marker); padding-inline: 0.15em; border-radius: 2px; }
code {
  font-family: var(--mono); font-size: 0.9em;
  background: var(--paper-3); padding: 0.05em 0.3em; border-radius: 4px;
}

.guide { line-height: 1.85; }
.guide > * + * { margin-top: 0.7rem; }
.guide p { max-width: 68ch; }
.guide li { margin-left: 1.1rem; list-style: disc; max-width: 68ch; }

.g-title { font-size: 1.15rem; margin-top: 0.3rem; }
.g-scene {
  font-size: 0.95rem; color: var(--accent); margin-top: 1.6rem;
  padding-top: 0.8rem; border-top: 1px solid var(--line);
}
.g-sub { font-size: 1rem; margin-top: 1.2rem; }

/* 실제로 말할 내용 — 눈에 띄게 */
.say {
  border-left: 3px solid var(--accent); background: var(--paper-3);
  padding: 0.8rem 1rem; border-radius: 0 8px 8px 0; max-width: 68ch;
}
.say p + p { margin-top: 0.5rem; }
.g-cue {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.12em;
  color: var(--accent); margin-top: 1rem;
}

/* 촬영 지시는 접어둡니다 — 대면 수업에는 필요 없습니다 */
.g-shot, .g-course { border: 1px solid var(--line); border-radius: 8px; padding: 0.5rem 0.8rem; }
.g-shot summary, .g-course summary {
  cursor: pointer; font-size: 0.85rem; color: var(--ink-3); font-weight: 600;
}
.g-shot[open] summary, .g-course[open] summary { margin-bottom: 0.5rem; }
.g-course { background: var(--paper-3); border: none; }
.g-course summary { font-size: 0.95rem; color: var(--accent); }

.goal {
  border-left: 3px solid var(--marker); padding-left: 0.8rem;
  color: var(--ink-2); max-width: 68ch;
}

/* 워크북 내용 */
.wb-steps { counter-reset: s; }
.wb-steps li {
  counter-increment: s; list-style: none; margin-left: 0;
  padding-left: 2rem; position: relative; margin-top: 0.5rem;
}
.wb-steps li::before {
  content: counter(s); position: absolute; left: 0; top: 0.1rem;
  width: 1.4rem; height: 1.4rem; border-radius: 50%;
  background: var(--accent-wash); color: var(--accent);
  font-size: 0.75rem; font-weight: 700; display: grid; place-items: center;
}
.wb-steps .hint { font-size: 0.9rem; color: var(--ink-2); margin-top: 0.15rem; }
.wb-dots li { list-style: disc; margin-left: 1.1rem; margin-top: 0.3rem; }
.wb-words { display: grid; grid-template-columns: minmax(6rem, 12rem) 1fr; gap: 0.4rem 1rem; }
.wb-words dt { font-weight: 700; }
.wb-words dd { margin: 0; color: var(--ink-2); }
@media (max-width: 560px) { .wb-words { grid-template-columns: 1fr; } .wb-words dd { margin-bottom: 0.5rem; } }
.wb-trouble { background: var(--paper-3); border-radius: 9px; padding: 0.9rem 1.1rem; }
.wb-trouble h4 { font-size: 0.95rem; margin-bottom: 0.5rem; }
.wb-trouble dt { font-weight: 700; margin-top: 0.6rem; font-size: 0.93rem; }
.wb-trouble dd { margin: 0.15rem 0 0; color: var(--ink-2); font-size: 0.93rem; }

/* ── 그밖 ─────────────────────────────────── */
.empty { padding: 2.5rem 1rem; text-align: center; color: var(--ink-3); font-size: 0.95rem; }
.crumb { font-size: 0.88rem; color: var(--ink-3); margin-bottom: 0.5rem; }
.crumb a { text-decoration: none; }
.hidden { display: none !important; }
main { padding-block: 1.5rem 4rem; }
.stack > * + * { margin-top: 1rem; }

/* 화면에서만 보이는 것 / 인쇄에서만 보이는 것 */
@media print {
  .top, .no-print { display: none !important; }
  body { background: #fff; }
}