/* =========================================================================
   유앤UP 국제학원 — 학사 원부 (청색 괘선)
   카드가 아니라 괘선. 모든 것이 줄이 그어진 한 장의 장부 위에 놓인 행이다.
   위계는 선 굵기, 붉은 여백선, 그리고 화면당 하나뿐인 반전 블록으로만 만든다.
   ========================================================================= */

/* ---------- 중성 7단계 + 주색 하나. 그 밖의 회색은 쓰지 않는다. ---------- */
:root {
  color-scheme: light;

  --paper-0: #FAFBFD;   /* 장부 면 */
  --paper-1: #F0F3F7;   /* 바탕 */
  --paper-2: #E3E8EF;   /* 표제란·음영 */
  --rule-1:  #C6D0DC;   /* 가는 괘선 */
  --rule-2:  #6B87A8;   /* 굵은 괘선 (청) */
  --ink-2:   #55606E;   /* 흐린 먹 */
  --ink-3:   #8A94A2;   /* 더 흐린 먹 — 빈 칸의 줄표 */
  --ink-1:   #171D26;   /* 먹 */

  --stamp:   #C7371F;   /* 주색 — 도장과 손이 필요한 상태에만. 화면당 3회까지 */
  --stamp-w: #F6E7E2;   /* 주색 바탕 */

  --ok:      #1F6B55;
  --ok-w:    #E1EDE8;

  --kr: "Noto Sans KR", "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  --lat: var(--kr);
  --cap: var(--kr);

  --rail: 236px;
  --gut: 28px;
}

/* 밤의 장부 — 21시, 수업이 끝난 교무실 */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper-0: #171B21;
    --paper-1: #12151A;
    --paper-2: #1F242C;
    --rule-1:  #2F3742;
    --rule-2:  #5D7695;
    --ink-2:   #99A5B4;
    --ink-1:   #E6EBF2;
    --stamp:   #E2634A;
    --stamp-w: #2E1C18;
    --ok:      #63BC94;
    --ok-w:    #172B22;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper-0: #171B21;
  --paper-1: #12151A;
  --paper-2: #1F242C;
  --rule-1:  #2F3742;
  --rule-2:  #5D7695;
  --ink-2:   #99A5B4;
  --ink-1:   #E6EBF2;
  --stamp:   #E2634A;
  --stamp-w: #2E1C18;
  --ok:      #63BC94;
  --ok-w:    #172B22;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  background: var(--paper-1);
  color: var(--ink-1);
  font-family: var(--kr);
  font-size: 15.5px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}

h1, h2, h3, h4 { margin: 0; line-height: 1.25; font-weight: 700; letter-spacing: -.02em; }
p { margin: 0; }
a { color: var(--ink-1); }
button, input, select, textarea { font-family: inherit; }
[hidden] { display: none !important; }

/* ---------- 브라우저가 그리는 부분도 장부의 것이다 ---------- */
::selection { background: var(--stamp); color: var(--paper-0); }
:focus-visible {
  outline: 2px solid var(--stamp);
  outline-offset: 1px;
}
* { scrollbar-width: thin; scrollbar-color: var(--rule-1) transparent; }
*::-webkit-scrollbar { width: 11px; height: 11px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: var(--rule-1);
  border: 3px solid var(--paper-1);
  border-radius: 0;
}
*::-webkit-scrollbar-thumb:hover { background: var(--rule-2); }
input, textarea { caret-color: var(--stamp); }

/* =========================================================================
   로그인
   ========================================================================= */
.auth {
  min-height: 100vh;
  display: grid; place-items: center;
  padding: 24px;
  background: var(--paper-1);
}
.auth-card {
  width: min(430px, 100%);
  background: var(--paper-0);
  border: 1px solid var(--rule-1);
  border-top: 3px solid var(--rule-2);
  padding: 34px 32px 26px;
}
.auth-logo {
  width: 44px; height: 44px;
  margin-bottom: 18px;
  border: 1.5px solid var(--stamp);
  color: var(--stamp);
  display: grid; place-items: center;
  font-family: var(--cap); font-size: 15px; font-weight: 700;
  letter-spacing: 0;
  transform: rotate(-2deg);
}
.auth-card h1 { font-size: 23px; margin-bottom: 6px; }
.auth-sub {
  color: var(--ink-2); font-size: 13.5px; line-height: 1.6;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule-1);
}
.gsi-slot { display: flex; min-height: 44px; margin-bottom: 8px; }
.auth-divider {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--cap); font-size: 10.5px; letter-spacing: 0;
  color: var(--ink-2);
  margin: 16px 0 12px;
}
.auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--rule-1); }

.demo-logins { display: grid; }
.demo-login {
  display: flex; align-items: center; gap: 12px;
  width: 100%;
  padding: 12px 4px;
  background: none;
  border: none;
  border-bottom: 1px solid var(--rule-1);
  cursor: pointer; text-align: left;
  color: var(--ink-1);
}
.demo-login:first-child { border-top: 1px solid var(--rule-1); }
.demo-login:hover { background: var(--paper-2); }
.demo-login .name { font-weight: 700; font-size: 14px; }
.demo-login .meta { font-size: 12px; color: var(--ink-2); }
.auth-note {
  margin-top: 20px; padding-top: 16px;
  border-top: 1px solid var(--rule-1);
  font-size: 12px; line-height: 1.65; color: var(--ink-2);
}
.auth-note code {
  font-family: var(--lat); font-size: 11px;
  background: var(--paper-2); padding: 1px 5px;
}

.role-grid { display: grid; }
.role-option {
  padding: 16px 4px;
  border: none; border-bottom: 1px solid var(--rule-1);
  background: none; cursor: pointer; text-align: left; color: var(--ink-1);
}
.role-option:first-child { border-top: 1px solid var(--rule-1); }
.role-option:hover { background: var(--paper-2); }
.role-option strong { display: block; font-size: 15px; margin-bottom: 3px; }
.role-option span { font-size: 13px; color: var(--ink-2); }

/* =========================================================================
   장부의 등 — 좌측 고정 레일
   ========================================================================= */
.shell { display: grid; grid-template-columns: var(--rail) 1fr; min-height: 100vh; }

.sidebar {
  background: var(--paper-0);
  border-right: 2px solid var(--rule-2);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
  overflow-y: auto;
}

/* 주차 — 모든 화면이 등록되는 하나의 축 */
.brand {
  display: block;
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--rule-1);
}
.brand-mark {
  display: inline-grid; place-items: center;
  width: 26px; height: 26px;
  border: 1.5px solid var(--stamp); color: var(--stamp);
  font-family: var(--cap); font-size: 11px; font-weight: 700;
  transform: rotate(-2deg);
  margin-bottom: 10px;
}
.brand-text { display: block; min-width: 0; }
.brand-name { display: block; font-size: 15px; font-weight: 700; letter-spacing: -.02em; }
.brand-course {
  display: block;
  font-family: var(--cap); font-size: 10.5px; font-weight: 600;
  letter-spacing: 0;
  color: var(--ink-2); margin-top: 3px;
}

.course-switch { padding: 12px 18px; border-bottom: 1px solid var(--rule-1); }
.course-switch .select {
  border: 1px solid var(--rule-1);
  background: var(--paper-2);
  font-size: 13px; font-weight: 700; padding: 7px 9px;
}
.course-static {
  font-size: 13px; font-weight: 700;
  color: var(--ink-1);
  padding: 7px 9px;
  background: var(--paper-2);
  border: 1px solid var(--rule-1);
}
.course-note {
  display: block;
  font-family: var(--cap); font-size: 10px; letter-spacing: 0;
  color: var(--ink-2);
  margin-bottom: 6px;
}

.nav-label {
  font-family: var(--cap);
  font-size: 10px; font-weight: 700; letter-spacing: 0;
  color: var(--ink-2);
  padding: 18px 18px 7px;
}
.nav-group { padding-bottom: 4px; }
.nav-group + .nav-group { border-top: 1px solid var(--rule-1); }

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 18px;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 13.5px; font-weight: 600;
  border: none; background: none; width: 100%;
  cursor: pointer; text-align: left;
  border-left: 3px solid transparent;
}
.nav-item:hover { background: var(--paper-2); color: var(--ink-1); }
.nav-item.active {
  color: var(--ink-1);
  border-left-color: var(--stamp);
  background: var(--paper-2);
}
.nav-item .nav-icon { flex: none; width: 17px; height: 17px; display: block; }
.nav-item .nav-icon svg { width: 17px; height: 17px; display: block; }
.nav-item .badge-count {
  margin-left: auto;
  font-family: var(--lat); font-size: 11px; font-weight: 700;
  color: var(--stamp);
  border: 1px solid var(--stamp);
  padding: 0 5px;
}

.sidebar-foot { margin-top: auto; border-top: 1px solid var(--rule-1); }
.me { display: flex; align-items: center; gap: 10px; padding: 12px 18px 8px; }
.avatar {
  width: 30px; height: 30px;
  background: var(--ink-1); color: var(--paper-0);
  display: grid; place-items: center;
  font-family: var(--lat); font-size: 11px; font-weight: 700;
  flex: none; object-fit: cover;
}
.me-info { min-width: 0; }
.me-name { display: block; font-size: 13px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.me-role {
  display: block;
  font-family: var(--cap); font-size: 10px; letter-spacing: 0;
  color: var(--ink-2);
}

/* =========================================================================
   장부 면
   ========================================================================= */
.main { min-width: 0; display: flex; flex-direction: column; background: var(--paper-1); }

.topbar {
  display: flex; align-items: flex-end; gap: 18px;
  padding: 26px var(--gut) 14px;
  border-bottom: 2px solid var(--rule-2);
  background: var(--paper-1);
  position: sticky; top: 0; z-index: 20;
}
.topbar h1 { font-size: 22px; letter-spacing: -.025em; }
.topbar .sub {
  font-family: var(--cap); font-size: 11.5px; font-weight: 600;
  letter-spacing: 0; color: var(--ink-2); margin-top: 5px;
}
.topbar-actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.page { padding: var(--gut) var(--gut) 80px; max-width: 1160px; width: 100%; }

/* ---------- 묶음 사이에는 진짜 여백 ---------- */
.section { margin-bottom: 42px; }
.section:last-child { margin-bottom: 0; }
.section-title {
  font-family: var(--cap);
  font-size: 10.5px; font-weight: 700; letter-spacing: 0;
  color: var(--ink-2);
  padding-bottom: 7px; margin-bottom: 0;
  border-bottom: 2px solid var(--rule-2);
}

/* ---------- 장부의 낱장 ---------- */
.card {
  background: var(--paper-0);
  border: 1px solid var(--rule-1);
  border-radius: 0;
}
.card-pad { padding: 18px 20px; }
.card-head {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 20px 10px;
  border-bottom: 2px solid var(--rule-2);
  background: var(--paper-2);
}
.card-head h3 { font-size: 14px; letter-spacing: -.01em; }
.card-head .right { margin-left: auto; }

.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

/* ---------- 수치는 장부 칸에 ---------- */
.stat {
  padding: 14px 18px;
  display: flex; flex-direction: column; gap: 2px;
}
.stat .label {
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
}
.stat .value {
  font-family: var(--lat);
  font-size: 26px; font-weight: 700; letter-spacing: -.03em;
  line-height: 1.1; margin-top: 4px;
}
.stat .hint { font-size: 12px; color: var(--ink-2); }

/* =========================================================================
   조작부 — 화면마다 먹으로 채운 반전 블록은 하나뿐
   ========================================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 13px;
  border: 1px solid var(--rule-2);
  border-radius: 5px;
  background: var(--paper-0);
  color: var(--ink-1);
  font-size: 13px; font-weight: 700;
  cursor: pointer; white-space: nowrap;
  text-decoration: none;
  transition: background .12s ease, color .12s ease;
}
.btn:hover { background: var(--paper-2); }
.btn-primary {
  background: var(--ink-1); border-color: var(--ink-1); color: var(--paper-0);
}
.btn-primary:hover { background: var(--ink-2); border-color: var(--ink-2); }
.btn-ghost { border-color: transparent; background: none; color: var(--ink-2); }
.btn-ghost:hover { background: var(--paper-2); color: var(--ink-1); }
.btn-danger { color: var(--stamp); border-color: var(--stamp); background: none; }
.btn-danger:hover { background: var(--stamp-w); }
.btn-sm { padding: 4px 9px; font-size: 12px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* ---------- 표기 ---------- */
.badge {
  border-radius: 999px;
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 7px;
  font-family: var(--cap);
  font-size: 11px; font-weight: 700; letter-spacing: 0;
  background: var(--paper-2); color: var(--ink-2);
  border: 1px solid var(--rule-1);
  white-space: nowrap;
}
.badge-ok { background: var(--ok-w); color: var(--ok); border-color: var(--ok); }
.badge-warn { background: var(--paper-0); color: var(--ink-1); border-color: var(--ink-1); }
.badge-danger,
.badge-brand { background: var(--stamp-w); color: var(--stamp); border-color: var(--stamp); }

/* =========================================================================
   행 — 괘선 위의 한 줄
   ========================================================================= */
.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th {
  text-align: left;
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
  padding: 9px 14px; border-bottom: 2px solid var(--rule-2);
  background: var(--paper-2);
  white-space: nowrap;
}
.table td { padding: 10px 14px; border-bottom: 1px solid var(--rule-1); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: var(--paper-2); }
.table .num { text-align: right; font-family: var(--lat); }
.table-wrap { overflow-x: auto; }
.table tr.row-warn { background: var(--stamp-w); }
.table tr.row-warn:hover { background: var(--stamp-w); }

.list-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--rule-1);
  text-decoration: none; color: inherit;
}
.list-row:last-child { border-bottom: none; }
.list-row:hover { background: var(--paper-2); }
.list-row .grow { flex: 1; min-width: 0; }
.list-row .title { display: block; font-weight: 700; font-size: 14px; }
.list-row .meta { display: block; font-size: 12.5px; color: var(--ink-2); margin-top: 1px; }

.empty {
  padding: 34px 20px;
  text-align: center; color: var(--ink-2); font-size: 13.5px;
}
.empty .big {
  display: block; margin: 0 auto 10px;
  width: 30px; height: 1px; background: var(--rule-2);
  font-size: 0; overflow: hidden;
}

/* =========================================================================
   기입란
   ========================================================================= */
.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-family: var(--cap); font-size: 10.5px; font-weight: 700;
  letter-spacing: 0;
  margin-bottom: 5px; color: var(--ink-2);
}
.field .help { font-size: 12px; color: var(--ink-2); margin-top: 5px; line-height: 1.6; }

.input, .textarea, .select {
  width: 100%;
  padding: 8px 11px;
  border: 1px solid var(--rule-1);
  border-bottom: 1.5px solid var(--rule-2);
  border-radius: 5px;
  background: var(--paper-0);
  color: var(--ink-1);
  font-size: 14px;
}
.input::placeholder, .textarea::placeholder { color: var(--ink-2); opacity: .75; }
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--stamp);
  background: var(--paper-0);
}
.textarea { resize: vertical; min-height: 88px; line-height: 1.75; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.input-lg { font-size: 17px; font-weight: 700; padding: 10px 12px; }

/* =========================================================================
   원고와 채점
   ========================================================================= */
.editor-wrap { display: grid; grid-template-columns: 1fr 300px; gap: 20px; align-items: start; }

.essay-input {
  min-height: 440px;
  font-size: 15.5px; line-height: 1.95;
  padding: 22px 24px;
  border: none; border-top: 1px solid var(--rule-1);
}
.editor-bar {
  display: flex; align-items: center; gap: 14px;
  padding: 9px 16px;
  border-top: 2px solid var(--rule-2);
  background: var(--paper-2);
  font-size: 12.5px; color: var(--ink-2);
  flex-wrap: wrap;
}
.editor-bar .right { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.saved-hint { font-family: var(--cap); font-size: 11px; letter-spacing: 0; color: var(--ink-2); }

.prompt-box {
  background: var(--paper-2);
  border-left: 1px solid var(--rule-2);
  padding: 13px 15px;
  font-size: 13.5px; line-height: 1.75;
  white-space: pre-wrap;
}
.essay-body {
  white-space: pre-wrap;
  font-size: 15.5px; line-height: 1.95;
  padding: 24px;
  max-width: 68ch;
}

.grade-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(320px, .6fr); gap: 20px; align-items: start; }
.grade-panel { position: sticky; top: 96px; }

.rubric-row {
  display: grid; grid-template-columns: 1fr 90px; gap: 10px;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--rule-1);
}
.rubric-row:last-of-type { border-bottom: none; }
.rubric-row .rlabel { font-size: 13.5px; font-weight: 700; }
.rubric-row .rmax { font-size: 11.5px; color: var(--ink-2); font-weight: 400; }
.score-input { text-align: right; font-family: var(--lat); font-weight: 700; }

.total-line {
  display: flex; align-items: baseline; gap: 8px;
  padding: 12px 0 2px;
  border-top: 2px solid var(--rule-2);
  margin-top: 6px;
}
.total-line .t-label {
  font-family: var(--cap); font-size: 10.5px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
}
.total-line .t-value {
  margin-left: auto;
  font-family: var(--lat); font-size: 26px; font-weight: 700; letter-spacing: -.03em;
}
.total-line .t-max { font-size: 13px; color: var(--ink-2); }
.total-delta { display: flex; align-items: center; gap: 6px; justify-content: flex-end; margin-top: 5px; }

.feedback-box {
  background: var(--paper-2);
  border-top: 2px solid var(--rule-2);
  padding: 16px 18px;
}
.feedback-box h4 {
  font-family: var(--cap); font-size: 10.5px; font-weight: 700;
  letter-spacing: 0;
  color: var(--ink-2); margin-bottom: 8px;
}
.feedback-text { white-space: pre-wrap; font-size: 14px; line-height: 1.8; max-width: 68ch; }

/* ---------- 눈금 ---------- */
.bar-track { height: 6px; background: var(--paper-2); border: 1px solid var(--rule-1); }
.bar-fill { height: 100%; background: var(--ink-2); }
.bar-fill.low { background: var(--stamp); }
.bar-fill.mid { background: var(--ink-2); }
.bar-fill.high { background: var(--ok); }

.score-chart { display: grid; gap: 13px; }
.score-chart .row .head {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 13px; margin-bottom: 5px; gap: 12px;
}
.score-chart .row .head .n { font-family: var(--lat); font-weight: 700; }

/* ---------- 초고 간 증감 ---------- */
.delta {
  display: inline-flex; align-items: center;
  font-family: var(--lat); font-size: 11.5px; font-weight: 700;
  padding: 0 5px; border: 1px solid currentColor;
  white-space: nowrap;
}
.delta-up { color: var(--ok); }
.delta-down { color: var(--stamp); }
.delta-flat { color: var(--ink-2); font-weight: 600; }
.delta-note { font-family: var(--cap); font-size: 11px; color: var(--ink-2); font-weight: 600; }

/* ---------- 초고 ---------- */
.draft-tabs {
  display: flex; gap: 0; flex-wrap: wrap;
  border-bottom: 2px solid var(--rule-2);
  background: var(--paper-2);
}
.draft-tab {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 15px;
  border: none; border-right: 1px solid var(--rule-1);
  background: none; color: var(--ink-2);
  font-family: var(--cap); font-size: 12px; font-weight: 700; letter-spacing: 0;
  cursor: pointer;
}
.draft-tab:hover { color: var(--ink-1); }
.draft-tab.active { background: var(--paper-0); color: var(--ink-1); box-shadow: inset 0 -2px 0 var(--stamp); }
.draft-tab .dot { width: 5px; height: 5px; background: var(--stamp); display: inline-block; }

.draft-row { padding: 13px 20px; border-bottom: 1px solid var(--rule-1); }
.draft-row:last-child { border-bottom: none; }
.draft-line { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 12.5px; }
.draft-line .right { margin-left: auto; display: flex; align-items: center; gap: 7px; }
.draft-tag {
  font-family: var(--cap); font-size: 10.5px; font-weight: 700;
  letter-spacing: 0;
  border: 1px solid var(--rule-2); padding: 2px 7px;
}
.draft-meta { color: var(--ink-2); font-size: 12px; }
.draft-feedback {
  margin-top: 9px; padding: 11px 13px;
  background: var(--paper-2);
  border-left: 1px solid var(--rule-2);
  font-size: 13px; line-height: 1.75; white-space: pre-wrap;
  max-width: 68ch;
}

/* =========================================================================
   자료실
   ========================================================================= */
.material-card {
  display: flex; flex-direction: column; height: 100%;
  text-decoration: none; color: inherit;
}
a.material-card:hover { border-color: var(--rule-2); background: var(--paper-2); }
.material-card .body { padding: 16px 18px; flex: 1; }
.material-card .mat-top { display: flex; align-items: center; gap: 9px; margin-bottom: 9px; }
.material-card .mat-kind {
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
}
.material-card .type-icon { width: 16px; height: 16px; color: var(--ink-2); }
.material-card .type-icon svg { width: 16px; height: 16px; display: block; }
.material-card h4 { font-size: 15px; margin-bottom: 5px; }
.material-card .desc { font-size: 13px; color: var(--ink-2); line-height: 1.6; }
.material-card .excerpt { margin-top: 8px; }
.material-card .foot {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-top: 1px solid var(--rule-1);
  font-size: 11.5px; color: var(--ink-2);
}
.material-card .foot .right { margin-left: auto; display: flex; gap: 6px; }
.material-card .byline { font-size: 11.5px; color: var(--ink-2); }
.tagrow { display: flex; gap: 5px; flex-wrap: wrap; padding: 0 18px 13px; }
.tag {
  font-family: var(--cap); font-size: 10px; font-weight: 700; letter-spacing: 0;
  background: var(--paper-2); color: var(--ink-2);
  border: 1px solid var(--rule-1); padding: 1px 6px;
}

/* 선생님 전용 — 붉은 여백선 */
.staff-banner {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 13px 16px;
  margin-bottom: 22px;
  background: var(--stamp-w);
  border: 1px solid var(--stamp);
  font-size: 13px; line-height: 1.65;
}
.staff-banner .lock { flex: none; width: 15px; height: 15px; color: var(--stamp); margin-top: 2px; }
.staff-banner .lock svg { width: 15px; height: 15px; display: block; }

/* =========================================================================
   서식 편집기
   ========================================================================= */
.rte { border: 1px solid var(--rule-1); background: var(--paper-0); }
.rte-bar {
  display: flex; align-items: center; gap: 1px; flex-wrap: wrap;
  padding: 5px 6px;
  background: var(--paper-2);
  border-bottom: 2px solid var(--rule-2);
  position: sticky; top: 84px; z-index: 5;
}
.rte-btn {
  border: 1px solid transparent; background: none;
  color: var(--ink-2);
  font-family: var(--cap); font-size: 12px; font-weight: 700; letter-spacing: 0;
  padding: 5px 8px; cursor: pointer;
}
.rte-btn:hover { background: var(--paper-0); border-color: var(--rule-1); color: var(--ink-1); }
.rte-sep { width: 1px; height: 16px; background: var(--rule-1); margin: 0 5px; }
.rte-body { min-height: 340px; padding: 22px 24px; font-size: 15.5px; line-height: 1.8; outline: none; }
.rte-body:focus { background: var(--paper-0); }
.rte-foot {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 14px; border-top: 1px solid var(--rule-1);
  font-family: var(--cap); font-size: 11px; letter-spacing: 0; color: var(--ink-2);
}
.rte-hint { margin-left: auto; }

/* =========================================================================
   자료 읽기
   ========================================================================= */
.prose-card { overflow: hidden; }
.prose-head {
  padding: 24px 28px 18px;
  border-bottom: 2px solid var(--rule-2);
  background: var(--paper-2);
}
.prose-head .type-icon { width: 18px; height: 18px; color: var(--ink-2); margin-bottom: 10px; }
.prose-head .type-icon svg { width: 18px; height: 18px; display: block; }
.prose-head h2 { font-size: 24px; text-wrap: balance; }
.prose-desc { margin-top: 8px; font-size: 14.5px; color: var(--ink-2); line-height: 1.6; max-width: 60ch; }
.prose-byline {
  margin-top: 12px;
  font-family: var(--cap); font-size: 11px; letter-spacing: 0;
  color: var(--ink-2);
}

.prose { padding: 26px 28px 32px; max-width: 68ch; }
.prose > *:first-child { margin-top: 0; }
.prose p { margin: 0 0 1.05em; font-size: 15.5px; line-height: 1.85; }
.prose h2 { font-size: 19px; margin: 1.9em 0 .6em; }
.prose h3 {
  font-family: var(--cap);
  font-size: 12px; margin: 2em 0 .6em;
  letter-spacing: 0; color: var(--ink-2);
  border-bottom: 1px solid var(--rule-1); padding-bottom: 5px;
}
.prose ul, .prose ol { margin: 0 0 1.1em; padding-left: 1.3em; }
.prose li { margin-bottom: .5em; line-height: 1.75; }
.prose blockquote {
  margin: 1.4em 0; padding: 12px 16px;
  border-left: 1px solid var(--rule-2);
  background: var(--paper-2);
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose hr { border: none; border-top: 2px solid var(--rule-2); margin: 2.2em 0; }
.prose code {
  font-family: var(--lat); font-size: .9em;
  background: var(--paper-2); border: 1px solid var(--rule-1); padding: 0 4px;
}
.prose a { text-decoration-color: var(--stamp); text-underline-offset: 3px; }

.detail-list { margin: 0; font-size: 13px; }
.detail-list dt {
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
  margin-bottom: 3px;
}
.detail-list dd { margin: 0 0 14px; line-height: 1.6; }
.detail-list dd:last-child { margin-bottom: 0; }

/* ---------- 첨부 ---------- */
.attachment { border-bottom: 1px solid var(--rule-1); }
.attachment:last-child { border-bottom: none; }
.att-line { display: flex; align-items: center; gap: 12px; padding: 12px 20px; }
.att-line .grow { flex: 1; min-width: 0; }
.att-line .right { display: flex; gap: 6px; }
.att-icon { flex: none; width: 16px; height: 16px; color: var(--ink-2); }
.att-icon svg { width: 16px; height: 16px; display: block; }
.att-name { display: block; font-weight: 700; font-size: 13.5px; word-break: break-all; }
.att-meta { display: block; font-family: var(--cap); font-size: 11px; letter-spacing: 0; color: var(--ink-2); }
.att-line-edit { padding: 9px 0; border-bottom: 1px solid var(--rule-1); }
.att-line-edit:last-child { border-bottom: none; }
.att-empty { font-size: 13px; color: var(--ink-2); margin: 0; }
.att-preview { padding: 0 20px 16px; }
.pdf-frame { width: 100%; height: 600px; border: 1px solid var(--rule-1); background: var(--paper-2); }
.att-image { max-width: 100%; border: 1px solid var(--rule-1); display: block; }
.att-note { margin-top: 7px; font-size: 11.5px; color: var(--ink-2); }

/* =========================================================================
   수업기록
   ========================================================================= */
.lesson-row { padding: 15px 20px; border-bottom: 1px solid var(--rule-1); }
.lesson-row:last-child { border-bottom: none; }
.lesson-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 9px; }
.lesson-head .right { margin-left: auto; }
.lesson-date { font-family: var(--lat); font-size: 13px; font-weight: 700; }
.lesson-target { font-size: 13.5px; font-weight: 700; }
.lesson-teacher { font-family: var(--cap); font-size: 11px; letter-spacing: 0; color: var(--ink-2); }

.lesson-block { display: flex; gap: 12px; margin-top: 7px; align-items: flex-start; }
.lesson-label {
  flex: none; width: 58px;
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
  padding-top: 3px;
}
.lesson-text { flex: 1; min-width: 0; white-space: pre-wrap; font-size: 13.5px; line-height: 1.7; max-width: 68ch; }
.lesson-text.note {
  background: var(--stamp-w); color: var(--stamp);
  padding: 7px 11px; font-size: 12.5px;
}
.filter-label {
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
  margin-right: 2px;
}

/* ---------- 요청 ---------- */
.req-row { padding: 15px 20px; border-bottom: 1px solid var(--rule-1); }
.req-row:last-child { border-bottom: none; }
.req-row.open { background: var(--stamp-w); }

/* =========================================================================
   학생카드
   ========================================================================= */
.sc-warn {
  display: flex; align-items: flex-start; gap: 12px;
  background: var(--stamp-w);
  border: 1px solid var(--stamp);
  padding: 14px 18px; margin-bottom: 18px;
  font-size: 14px; line-height: 1.65;
}
.sc-warn-icon { flex: none; width: 16px; height: 16px; color: var(--stamp); margin-top: 3px; }
.sc-warn-icon svg { width: 16px; height: 16px; display: block; }
.sc-warn b { color: var(--stamp); }

.sc-head { overflow: hidden; }
.sc-id { display: flex; align-items: center; gap: 18px; padding: 22px 24px 18px; }
.sc-avatar {
  flex: none; width: 52px; height: 52px;
  background: var(--ink-1); color: var(--paper-0);
  display: grid; place-items: center;
  font-family: var(--lat); font-size: 17px; font-weight: 700;
}
.sc-id-text { min-width: 0; }
.sc-id-text h2 { font-size: 23px; }
.sc-tags { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 8px; }
.sc-sub { margin-top: 7px; font-size: 13px; color: var(--ink-2); }

.sc-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--rule-2);
  background: var(--paper-2);
}
.sc-stat { padding: 12px 18px; border-right: 1px solid var(--rule-1); display: flex; flex-direction: column; gap: 1px; }
.sc-stat:last-child { border-right: none; }
.sc-stat-v { font-family: var(--lat); font-size: 19px; font-weight: 700; letter-spacing: -.02em; }
.sc-stat-l {
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
}
.sc-stat-h { font-size: 11.5px; color: var(--ink-2); }

.sc-feedback {
  white-space: pre-wrap; font-size: 13.5px; line-height: 1.75;
  background: var(--paper-2); border-left: 1px solid var(--rule-2);
  padding: 13px 15px; max-height: 250px; overflow-y: auto; max-width: 68ch;
}
.sc-more { border-top: 1px solid var(--rule-1); }
.sc-more > summary {
  padding: 10px 20px; cursor: pointer; list-style: none;
  font-family: var(--cap); font-size: 11px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
}
.sc-more > summary::-webkit-details-marker { display: none; }
.sc-more > summary:hover { background: var(--paper-2); color: var(--ink-1); }

.pf { padding: 2px 0; }
.pf-row {
  display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 12px;
  padding: 8px 20px; border-bottom: 1px solid var(--rule-1); align-items: baseline;
}
.pf-row:last-child { border-bottom: none; }
.pf-label {
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
}
.pf-value { font-size: 13.5px; line-height: 1.55; }
.profile-grid dt { margin-top: 12px; }
.profile-grid dt:first-child { margin-top: 0; }

/* =========================================================================
   유닛 · 아카이브
   ========================================================================= */
.unit-block { margin-bottom: 38px; }

/* 편이 바뀌는 자리. 번호 판 · 제목 · 그 유닛에 걸린 것의 수. */
.unit-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center; gap: 16px;
  margin-bottom: 0;
  padding: 12px 16px;
  background: var(--paper-1);
  border: 1px solid var(--rule-1);
  border-bottom: 2px solid var(--rule-2);
}

.unit-no {
  display: flex; flex-direction: column; align-items: center;
  min-width: 52px;
  padding: 5px 8px 6px;
  background: var(--paper-0);
  border: 1px solid var(--rule-2);
}
.unit-no-lbl { font-size: 9.5px; font-weight: 700; color: var(--ink-2); line-height: 1.2; }
.unit-no-n {
  font-family: var(--lat); font-size: 21px; font-weight: 800; line-height: 1.05;
  color: var(--stamp);
}

.unit-main { min-width: 0; }
.unit-title {
  display: block;
  font-size: 16.5px; font-weight: 800; line-height: 1.4;
  color: var(--ink-1);
}
.unit-focus {
  display: block; margin-top: 3px;
  font-size: 12.5px; line-height: 1.6; color: var(--ink-2);
}

.unit-count {
  font-size: 11.5px; color: var(--ink-2); white-space: nowrap;
  align-self: start; padding-top: 3px;
}

/* 머리 바로 아래에 붙는 판은 위 테두리를 겹치지 않게 한다. */
.unit-head + .card { border-top: none; }

@media (max-width: 640px) {
  .unit-head { grid-template-columns: auto minmax(0, 1fr); gap: 12px; }
  .unit-count { grid-column: 2; padding-top: 0; }
}

.year-card { display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.year-card:hover { border-color: var(--rule-2); background: var(--paper-2); }
.year-card .top { padding: 18px 20px; display: flex; align-items: flex-start; gap: 14px; }
.year-badge {
  font-family: var(--lat); font-size: 12px; font-weight: 700;
  background: var(--paper-2); color: var(--ink-2);
  border: 1px solid var(--rule-1); padding: 3px 8px; flex: none;
}
.year-card h4 { font-size: 16px; margin-bottom: 3px; }
.year-card .meta { font-size: 12.5px; color: var(--ink-2); }
.year-card .foot {
  display: flex; align-items: center; gap: 16px;
  padding: 12px 20px; border-top: 1px solid var(--rule-1); font-size: 13px;
}
.year-card .foot .k {
  font-family: var(--cap); font-size: 10px; letter-spacing: 0;
  color: var(--ink-2);
}
.year-card .foot .v { font-family: var(--lat); font-weight: 700; }
.archive-note { font-size: 12.5px; color: var(--ink-2); margin-top: 14px; line-height: 1.7; max-width: 68ch; }

/* =========================================================================
   주차 계획
   ========================================================================= */
.wk-list { display: grid; gap: 12px; }
.wk-folds { border: 1px solid var(--rule-1); background: var(--paper-0); }

.wk-fold { border-bottom: 1px solid var(--rule-1); }
.wk-fold:last-child { border-bottom: none; }
.wk-fold[open] { background: var(--paper-0); }
.wk-fold[open] > .wk-sum { border-bottom: 2px solid var(--rule-2); background: var(--paper-2); }
/* 이번 주. 장부에서 도장이 찍힌 줄 — 번호가 붉은 판이 되고
   줄 전체가 주색 바탕으로 올라온다. 16주 중 어디인지 한눈에 보여야 한다. */
.wk-fold.wk-now { border-top: 2px solid var(--stamp); border-bottom: 2px solid var(--stamp); }
.wk-fold.wk-now > .wk-sum { background: var(--stamp-w); padding-top: 15px; padding-bottom: 15px; }
.wk-fold.wk-now > .wk-sum:hover { background: var(--stamp-w); }
.wk-fold.wk-now[open] > .wk-sum { border-bottom-color: var(--stamp); }
.wk-fold.wk-now > .wk-sum .wk-sum-n {
  background: var(--stamp); color: var(--paper-0);
  width: 36px; padding: 3px 0; text-align: center;
}
.wk-fold.wk-now > .wk-sum .wk-sum-title { font-size: 15.5px; font-weight: 800; }
.wk-fold.wk-past > .wk-sum { color: var(--ink-2); }
.wk-fold.wk-past > .wk-sum .wk-sum-title { font-weight: 600; }

.wk-sum {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 18px; cursor: pointer; list-style: none;
}
.wk-sum::-webkit-details-marker { display: none; }
.wk-sum:hover { background: var(--paper-2); }
.wk-sum-n {
  flex: none; width: 30px;
  font-family: var(--lat); font-size: 19px; font-weight: 700; letter-spacing: -.03em;
  text-align: right;
}
.wk-sum-title { flex: 1; min-width: 0; font-size: 14px; font-weight: 700; }
.wk-sum-read { display: block; font-size: 11.5px; font-weight: 500; color: var(--ink-2); margin-top: 1px; }
.wk-sum-tags { display: flex; gap: 5px; flex-wrap: wrap; }

.wk-detail { padding: 16px 18px 18px; }
.wk-curr { background: var(--paper-2); border-left: 1px solid var(--rule-2); padding: 12px 14px; margin-bottom: 14px; }
.wk-curr-row { display: flex; gap: 12px; margin-bottom: 7px; align-items: flex-start; }
.wk-curr-row:last-child { margin-bottom: 0; }
.wk-curr-label {
  flex: none; width: 90px;
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--stamp); padding-top: 2px;
}
.wk-curr-text { flex: 1; min-width: 0; font-size: 12.5px; line-height: 1.7; white-space: pre-wrap; }

.wk-split { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.wk-col { border-top: 1px solid var(--rule-1); padding-top: 10px; }
.wk-col-label {
  display: block;
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2); margin-bottom: 5px;
}
.wk-text { font-size: 12.5px; line-height: 1.7; }

.wk-items { display: grid; gap: 6px; margin-top: 14px; }
.wk-item {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 12px;
  border: 1px solid var(--rule-1);
  text-decoration: none; color: inherit; background: var(--paper-0);
}
.wk-item:hover { border-color: var(--rule-2); background: var(--paper-2); }
.wk-item .grow { flex: 1; min-width: 0; }
.wk-item b { display: block; font-size: 13.5px; }
.wk-meta { display: block; font-size: 11.5px; color: var(--ink-2); margin-top: 1px; }
.wk-kind {
  flex: none;
  font-family: var(--cap); font-size: 10px; font-weight: 700; letter-spacing: 0;
  padding: 2px 7px; border: 1px solid currentColor;
}
.wk-kind-a { color: var(--ink-2); }
.wk-kind-q { color: var(--stamp); }

/* 학생이 보는 주차 */
.wk-row {
  display: grid; grid-template-columns: 62px minmax(0, 1fr); gap: 16px;
  background: var(--paper-0); border: 1px solid var(--rule-1);
  padding: 16px 18px;
}
.wk-row.wk-now { border-color: var(--stamp); border-width: 2px; background: var(--stamp-w); }
.wk-row.wk-now .wk-n { background: var(--stamp); color: var(--paper-0); padding: 3px 8px; }
.wk-row.wk-past { color: var(--ink-2); }
.wk-num { text-align: right; }
.wk-n { display: block; font-family: var(--lat); font-size: 24px; font-weight: 700; letter-spacing: -.03em; line-height: 1; }
.wk-lbl { display: block; font-family: var(--cap); font-size: 9.5px; letter-spacing: 0; color: var(--ink-2); margin-top: 3px; }
.wk-body { min-width: 0; }
.wk-focus { font-size: 15px; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.wk-student-detail { font-size: 13.5px; line-height: 1.7; color: var(--ink-2); max-width: 68ch; }
.wk-reading { font-size: 12.5px; color: var(--ink-2); margin-top: 7px; }

/* =========================================================================
   커리큘럼
   ========================================================================= */
.curr-picker { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.curr-body { padding: 0; }
.curr-row {
  display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 18px;
  padding: 13px 20px; border-bottom: 1px solid var(--rule-1);
}
.curr-row:last-child { border-bottom: none; }
.curr-label {
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2); padding-top: 2px;
}
.curr-value { font-size: 13.5px; line-height: 1.75; }
.curr-value.curr-mono { white-space: pre-wrap; color: var(--ink-2); font-size: 13px; }
.curr-note { margin-top: 5px; font-size: 12px; color: var(--ink-2); }
.curr-list { margin: 0; padding-left: 1.1em; }
.curr-list li { margin-bottom: 3px; }
.curr-rules { margin: 0; padding-left: 1.3em; font-size: 13px; line-height: 1.8; max-width: 68ch; }
.curr-rules li { margin-bottom: 7px; }

/* =========================================================================
   퀴즈
   ========================================================================= */
.quiz-form { display: grid; gap: 12px; }
.q-card { background: var(--paper-0); border: 1px solid var(--rule-1); padding: 16px 18px; }
.q-card.q-right { border-left: 1px solid var(--ok); background: var(--ok-w); }
.q-card.q-wrong { border-left: 1px solid var(--stamp); background: var(--stamp-w); }
.q-head { display: flex; align-items: center; gap: 10px; margin-bottom: 9px; flex-wrap: wrap; }
.q-head .right { margin-left: auto; }
.q-no {
  font-family: var(--lat); font-size: 11px; font-weight: 700; letter-spacing: 0;
  border: 1px solid var(--rule-2); padding: 1px 7px;
}
.q-points { font-family: var(--cap); font-size: 11px; color: var(--ink-2); letter-spacing: 0; }
.q-prompt { font-size: 14.5px; line-height: 1.6; margin-bottom: 11px; max-width: 68ch; }

.q-choices { display: grid; }
.q-choice {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--rule-1); border-bottom: none;
  cursor: pointer; font-size: 14px; line-height: 1.5;
  background: var(--paper-0);
}
.q-choice:last-child { border-bottom: 1px solid var(--rule-1); }
.q-choice:hover { background: var(--paper-2); }
.q-choice input { margin-top: 3px; flex: none; accent-color: var(--stamp); }
.q-choice:has(input:checked) { background: var(--paper-2); border-color: var(--stamp); }

.q-answer { display: flex; gap: 10px; align-items: baseline; font-size: 13.5px; margin-top: 5px; }
.q-label {
  flex: none; width: 88px;
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0; color: var(--ink-2);
}
.q-explain {
  margin-top: 11px; padding: 9px 12px;
  background: var(--paper-2); border-left: 1px solid var(--rule-2);
  font-size: 13px; line-height: 1.65; color: var(--ink-2); max-width: 68ch;
}
.q-edit .q-edit-top { display: flex; align-items: center; gap: 8px; margin-bottom: 13px; flex-wrap: wrap; }
.q-edit-top .select { width: auto; }
.q-edit-top .q-points-input { width: 68px; text-align: right; }
.q-edit-top .btn { margin-left: auto; }
.q-edit-choice { display: flex; align-items: center; gap: 10px; margin-bottom: 7px; }
.q-edit-choice input[type="radio"] { flex: none; accent-color: var(--ok); }
.mark-ok { color: var(--ok); font-weight: 700; }
.mark-no { color: var(--stamp); font-weight: 700; }

/* =========================================================================
   모달 · 알림
   ========================================================================= */
.modal-back {
  position: fixed; inset: 0;
  background: rgba(16, 21, 28, .58);
  display: grid; place-items: center; padding: 20px; z-index: 100; overflow-y: auto;
}
.modal {
  background: var(--paper-0);
  border: 1px solid var(--rule-2);
  width: min(560px, 100%); max-height: 90vh;
  display: flex; flex-direction: column;
}
.modal-head {
  display: flex; align-items: center;
  padding: 14px 20px; border-bottom: 2px solid var(--rule-2); background: var(--paper-2);
}
.modal-head h3 { font-size: 15px; }
.modal-head .x {
  margin-left: auto; background: none; border: none;
  font-size: 20px; color: var(--ink-2); cursor: pointer; line-height: 1; padding: 2px 6px;
}
.modal-head .x:hover { color: var(--stamp); }
.modal-body { padding: 20px; overflow-y: auto; }
.modal-foot { display: flex; gap: 8px; justify-content: flex-end; padding: 14px 20px; border-top: 1px solid var(--rule-1); }

.toasts { position: fixed; bottom: 22px; right: 22px; display: grid; gap: 8px; z-index: 200; }
.toast {
  background: var(--ink-1); color: var(--paper-0);
  padding: 11px 16px; font-size: 13.5px; font-weight: 600;

  animation: stamp-in .22s cubic-bezier(.2, .8, .2, 1);
}

/* 하나뿐인 연출: 도장이 찍힌다 */
@keyframes stamp-in {
  from { opacity: 0; transform: translateY(6px) rotate(-1.2deg); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* =========================================================================
   좁은 화면
   ========================================================================= */
@media (max-width: 1000px) {
  .editor-wrap, .grade-layout { grid-template-columns: 1fr; }
  .grade-panel { position: static; }
  .wk-split { grid-template-columns: 1fr; }
  .sc-stats { grid-template-columns: repeat(2, 1fr); }
  .sc-stat:nth-child(2) { border-right: none; }
  .sc-stat:nth-child(1), .sc-stat:nth-child(2) { border-bottom: 1px solid var(--rule-1); }
}

@media (max-width: 860px) {
  :root { --gut: 16px; }
  .shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static; height: auto;
    border-right: none; border-bottom: 2px solid var(--rule-2);
  }
  .brand { padding: 14px 16px 10px; }
  .brand-mark { margin-bottom: 6px; }
  .nav-label { padding: 12px 16px 5px; }
  .nav-item { padding: 9px 16px; }
  .topbar { padding: 18px 16px 12px; flex-wrap: wrap; }
  .row-2 { grid-template-columns: 1fr; }
  .curr-row { grid-template-columns: 1fr; gap: 5px; }
  .wk-row { grid-template-columns: 1fr; gap: 8px; }
  .wk-num { text-align: left; display: flex; align-items: baseline; gap: 6px; }
  .pf-row { grid-template-columns: 1fr; gap: 2px; }
  .rte-bar { position: static; }
}

/* =========================================================================
   주차별 영상
   ========================================================================= */
.vid { border-bottom: 1px solid var(--rule-1); padding: 13px 20px; }
.vid:last-of-type { border-bottom: none; }
.vid-line { display: flex; align-items: center; gap: 11px; }
.vid-line .grow { flex: 1; min-width: 0; }
.vid-vis {
  font-family: var(--cap); font-size: 10px; font-weight: 700;
  letter-spacing: 0;
  padding: 2px 7px; border: 1px solid currentColor; white-space: nowrap;
}
.vid-vis.on { color: var(--ok); }
.vid-vis.off { color: var(--ink-2); }

.vid-frame {
  margin-top: 11px;
  border: 1px solid var(--rule-1);
  background: var(--paper-2);
  aspect-ratio: 16 / 9;
}
.vid-frame iframe { width: 100%; height: 100%; border: none; display: block; }

.vid-check {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--ink-2); cursor: pointer;
}
.vid-check input { accent-color: var(--stamp); }

.wk-videos { display: grid; gap: 10px; margin-top: 14px; }
.wk-videos .vid { border: 1px solid var(--rule-1); padding: 12px 14px; }

/* =========================================================================
   고치기 — 관리자만 보는 것들
   ========================================================================= */

/* 고칠 수 없는 사람에게는 버튼 자리에 이유를 적어 둔다. */
.read-note {
  font-size: 12.5px; color: var(--ink-2);
  padding: 7px 0; white-space: nowrap;
}

/* 창 맨 위, 지금 무엇을 고치고 있는지. */
.modal-note {
  margin: 0 0 18px;
  padding: 9px 12px;
  background: var(--paper-2);
  border-left: 2px solid var(--rule-2);
  font-size: 12.5px; line-height: 1.7; color: var(--ink-2);
}

/* 한 창 안에서 선생님용과 학생용을 가르는 띠. */
.edit-band {
  margin: 22px 0 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule-2);
  font-size: 11.5px; font-weight: 700; color: var(--ink-2);
}
.edit-band:first-child { margin-top: 0; }

.check {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 0;
  font-size: 13.5px; line-height: 1.5; cursor: pointer;
}
.check input { accent-color: var(--stamp); flex: none; }

/* 주차를 펼쳤을 때 맨 아래. 눈에 먼저 들어오면 안 된다. */
.wk-edit {
  margin-top: 14px; padding-top: 12px;
  border-top: 1px solid var(--rule-1);
}

/* =========================================================================
   학생이 내야 할 것 — My work, 그리고 Home의 Next up

   장부의 행이다. 카드가 아니라 괘선 위의 줄.
   ========================================================================= */
.work-list {
  background: var(--paper-0);
  border: 1px solid var(--rule-1);
}

.work-row {
  display: flex; align-items: baseline; gap: 14px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--rule-1);
  text-decoration: none; color: inherit;
}
.work-row:last-child { border-bottom: none; }
.work-row:hover { background: var(--paper-1); }
.work-row .grow { flex: 1; min-width: 0; }

/* 무엇을 내는 것인지. 폭을 고정해서 제목이 한 줄에서 시작하게 한다. */
.work-kind {
  flex: none; width: 44px;
  font-size: 11px; font-weight: 700; line-height: 1.6;
  color: var(--ink-2);
}
.work-kind-q { color: var(--stamp); }

.work-title {
  display: block;
  font-size: 14.5px; font-weight: 600; line-height: 1.5;
  color: var(--ink-1);
}
.work-meta {
  display: block; margin-top: 3px;
  font-size: 12.5px; color: var(--ink-2);
}
.work-row .badge { flex: none; align-self: center; }

@media (max-width: 640px) {
  .work-row { flex-wrap: wrap; gap: 8px 12px; }
  .work-row .badge { order: 3; }
}

/* ---- Home 맨 위, 다음에 할 것 하나 ---- */
.next-up {
  border: 1px solid var(--rule-2);
  border-top-width: 3px;
  background: var(--paper-0);
  padding: 14px 18px 4px;
  margin-bottom: 22px;
}
.next-up .next-label {
  display: block; margin-bottom: 8px;
  font-size: 11.5px; font-weight: 700; color: var(--ink-2);
}
.next-up .next-body { margin: 0 -18px; }
.next-up .work-row { padding-left: 18px; padding-right: 18px; border-bottom: none; }

.next-clear { padding-bottom: 14px; }
.next-none {
  margin: 0;
  font-size: 14px; line-height: 1.7; color: var(--ink-2);
}

/* =========================================================================
   학생이 보는 수업 기록 — 그 주에 실제로 한 것
   ========================================================================= */
.wk-log { margin-top: 14px; }
.wk-log-label {
  display: block; margin-bottom: 8px;
  font-size: 11.5px; font-weight: 700; color: var(--ink-2);
}
.wk-log-row {
  display: flex; gap: 14px;
  padding: 10px 0;
  border-top: 1px solid var(--rule-1);
}
.wk-log-row:first-child { border-top: none; }
.wk-log-date {
  flex: none; width: 76px;
  font-size: 12.5px; color: var(--ink-2);
}
.wk-log-text {
  flex: 1; min-width: 0;
  font-size: 14px; line-height: 1.7;
}
.wk-log-hw {
  display: block; margin-top: 5px;
  font-size: 13px; line-height: 1.6; color: var(--ink-2);
}
.wk-log-hw b { color: var(--ink-1); font-weight: 700; }

/* 반 선택기 아래 한 줄 안내 */
.course-hint {
  margin-top: 6px;
  font-size: 11.5px; line-height: 1.5; color: var(--ink-2);
}

/* 문항 유형 고르는 작은 선택기 */
.q-type { width: auto; min-width: 150px; }

/* 아직 선생님이 안 읽은 초고 — 코멘트 자리에 들어가는 한 줄 */
.draft-waiting {
  margin: 0;
  font-size: 13.5px; line-height: 1.7; color: var(--ink-2);
}

/* =========================================================================
   과제 지문 — 초고 탭의 첫 칸
   ========================================================================= */
.prompt-pane { max-width: 68ch; }
.prompt-unit {
  margin: 0 0 12px;
  font-size: 12.5px; line-height: 1.6; color: var(--ink-2);
}
.prompt-pane .prompt-box { font-size: 14.5px; line-height: 1.85; }

.prompt-rubric {
  margin-top: 18px;
  border-top: 1px solid var(--rule-2);
}
.prompt-rubric-row {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid var(--rule-1);
  font-size: 13.5px;
}
.prompt-rubric-row .n { font-family: var(--lat); color: var(--ink-2); }
.prompt-rubric-sum {
  border-bottom: none;
  font-weight: 700;
}
.prompt-rubric-sum .n { color: var(--ink-1); font-weight: 700; }

.prompt-note {
  margin: 16px 0 12px;
  font-size: 12.5px; line-height: 1.75; color: var(--ink-2);
}
.prompt-note b { color: var(--ink-1); }

/* =========================================================================
   초고별 점수

   한 초고가 한 줄. 초고가 열 개가 되어도 세로로만 길어지고
   가로로 무너지지 않는다.
   ========================================================================= */
.strip { display: grid; }
.strip-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) 30px 46px;
  align-items: center; gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid var(--rule-1);
}
.strip-row:last-child { border-bottom: none; }
.strip-n { font-size: 12px; color: var(--ink-2); white-space: nowrap; }
.strip-track { height: 4px; background: var(--paper-2); }
.strip-fill { display: block; height: 100%; background: var(--rule-2); }
.strip-fill.is-final { background: var(--ok); }
.strip-v {
  font-family: var(--lat); font-size: 13px; font-weight: 700;
  text-align: right;
}
.strip-d { text-align: right; }

/* 지금 읽는 초고의 점수, 크게 한 번 */
.score-big { display: flex; align-items: baseline; gap: 9px; margin-bottom: 12px; }
.score-n { font-size: 34px; font-weight: 800; line-height: 1; font-family: var(--lat); }
.score-of { font-size: 13px; color: var(--ink-2); }

.score-sep {
  margin: 20px 0 4px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule-2);
  font-size: 11.5px; font-weight: 700; color: var(--ink-2);
}

/* 첫 초고 → 마지막 초고, 기준별.
   좁은 칸에서도 넘치지 않게 표 대신 줄로 그린다. */
.cmp-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: baseline; gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--rule-1);
  font-size: 13px;
}
.cmp-row:last-child { border-bottom: none; }
.cmp-label { line-height: 1.5; }
.cmp-move {
  display: flex; align-items: baseline; gap: 5px;
  font-family: var(--lat); white-space: nowrap;
}
.cmp-from { color: var(--ink-2); }
.cmp-arrow { color: var(--ink-3); }
.cmp-to { font-weight: 700; }
.cmp-max { font-size: 11.5px; color: var(--ink-3); }
.cmp-d { min-width: 34px; text-align: right; }

/* 채점 화면에서 다른 반 묶음 */
.other-class { border-bottom: 1px solid var(--rule-2); }
.other-class:last-child { border-bottom: none; }
.other-head {
  display: flex; align-items: center; gap: 9px;
  padding: 11px 20px 10px;
  background: var(--paper-1);
  font-size: 13.5px;
}
.other-head .right { margin-left: auto; }

/* 서술형 — 선생님이 점수를 직접 적는 문항 */
.q-open { border-left: 2px solid var(--rule-2); }
.q-note { margin: 8px 0 0; font-size: 12px; color: var(--ink-2); }
.mark-box { display: flex; align-items: center; gap: 6px; }
.mark-input { width: 62px; text-align: right; font-family: var(--lat); font-weight: 700; }
.mark-of { font-size: 12.5px; color: var(--ink-2); }
.q-answer .q-label + span { white-space: pre-wrap; }

/* 되돌릴 수 없는 일이 있는 카드 */
.danger-card { border-color: var(--stamp); }
.danger-card .card-head { border-bottom-color: var(--stamp); }

/* =========================================================================
   시험지의 묶음 — Part A · Part B · Part C
   ========================================================================= */
.part-head {
  margin: 32px 0 14px;
  padding-bottom: 9px;
  border-bottom: 2px solid var(--rule-2);
}
.part-head:first-child { margin-top: 0; }
.part-key {
  font-size: 15px; font-weight: 800; color: var(--ink-1);
  margin-right: 10px;
}
.part-title { font-size: 13.5px; color: var(--ink-2); }
.part-note {
  margin: 7px 0 0;
  font-size: 13px; line-height: 1.7; color: var(--ink-2);
}

/* 서술형 답란 — 단락을 나눠 쓸 수 있어야 한다 */
.open-input { line-height: 1.85; }
.open-big { min-height: 260px; font-size: 15px; }

/* 단답형 — 한 줄이지만 줄을 바꿀 수는 있다 */
.short-input { min-height: 0; font-size: 14.5px; }

/* 주차에 달린 자료 — 과제·시험과 같은 줄 모양, 색만 다르게 */
.wk-kind-m { color: var(--ok); }

/* 자료실을 유닛으로 묶었을 때, 판 안에 격자가 들어간다 */
.unit-block .card-pad > .grid-2 { gap: 14px; }

/* 영상을 몇 명에게만 걸었을 때 */
.vid-vis.only { color: var(--stamp); border-color: var(--stamp); }

/* 누구에게 보일지 고르는 목록 */
.who-list {
  max-height: 320px; overflow-y: auto;
  border: 1px solid var(--rule-1);
  padding: 4px 12px;
}
.who-list .check { border-bottom: 1px solid var(--rule-1); }
.who-list .check:last-child { border-bottom: none; }
.who-sub { font-size: 12px; color: var(--ink-2); }

/* 유닛이 걸치는 주차 */
.unit-weeks {
  display: inline-block; margin-left: 9px;
  font-family: var(--lat); font-size: 11.5px; color: var(--ink-2);
  border: 1px solid var(--rule-1); padding: 1px 6px; vertical-align: 2px;
}

/* 아직 아무것도 안 적힌 주차 */
.wk-blank { font-weight: 500; color: var(--ink-3); }

/* 숙제 마감 */
.hw-due {
  margin-left: 8px; padding: 1px 6px;
  border: 1px solid var(--rule-1);
  font-family: var(--lat); font-size: 11px; font-weight: 400;
  color: var(--ink-2); white-space: nowrap;
}
.hw-due.late { color: var(--stamp); border-color: var(--stamp); }

/* 아직 안 열린 주차 · 항목 */
.wk-locked {
  padding: 14px 18px;
  border: 1px dashed var(--rule-1);
  background: var(--paper-1);
  font-size: 13px; line-height: 1.7; color: var(--ink-2);
  text-align: center;
}
.wk-folds + .wk-locked, .work-list + .wk-locked { margin-top: 0; border-top: none; }

/* 표 안에서 바로 고치는 재고 칸.
   평소에는 다른 숫자와 똑같이 보이고, 마우스를 얹거나 누를 때만
   고칠 수 있는 칸처럼 보인다. 표에 입력칸 46개가 늘어서 있으면
   장부가 아니라 서식이 된다. */
.stock-input {
  width: 46px; text-align: right;
  font-family: var(--lat); font-size: 13.5px; font-weight: 400;
  color: var(--ink-1);
  padding: 2px 4px;
  border: 1px solid transparent;
  background: none;
  border-radius: 0;
  cursor: text;
  -moz-appearance: textfield;
  appearance: textfield;
}
.stock-input::-webkit-outer-spin-button,
.stock-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.stock-input:hover { border-color: var(--rule-1); background: var(--paper-0); }
.stock-input:focus {
  border-color: var(--rule-2); background: var(--paper-0);
  font-weight: 700; outline: none;
}

/* 학원 로고 그림. 도장 자리에 그대로 들어간다 — 테두리는 없앤다. */
.logo-img {
  border: none; background: none; transform: none;
  object-fit: contain; display: block;
}
.brand-mark.logo-img { width: 38px; height: 38px; margin-bottom: 10px; }
.auth-logo.logo-img { width: 72px; height: 72px; margin: 0 auto 18px; }

/* =========================================================================
   종이에 쓴 글 — 사진으로 낸 초고

   원부에 종이 한 장을 붙여 넣은 것처럼 보이게 한다. 글로 낸 초고와
   같은 폭, 같은 여백 안에 들어가고, 쪽 번호가 장부의 면수처럼 붙는다.
   ========================================================================= */

/* ---- 낸 뒤에 읽는 자리 ---- */
.paper-sheet {
  padding: 24px;
  max-width: 68ch;
  display: grid;
  gap: 22px;
}
.paper-page { margin: 0; }
.paper-page img {
  display: block;
  width: 100%;
  border: 1px solid var(--rule-1);
  background: #fff;
  cursor: zoom-in;
}
.paper-page figcaption {
  margin-top: 6px;
  font-family: var(--cap);
  font-size: 11px; letter-spacing: .02em;
  color: var(--ink-3);
  text-align: right;
}

/* ---- 내기 전, 사진을 고르는 자리 ---- */
.paper-panel {
  border-top: 1px solid var(--rule-1);
  padding: 13px 16px 15px;
}
.paper-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.paper-title {
  font-family: var(--cap);
  font-size: 11.5px; font-weight: 700; letter-spacing: .04em;
  color: var(--ink-2);
}
.paper-head .paper-pick { margin-left: auto; }
.paper-note {
  margin: 7px 0 0;
  font-size: 12px; line-height: 1.7; color: var(--ink-3);
}
.paper-shelf {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: 12px;
}
.paper-thumb { margin: 0; }
.paper-thumb img {
  display: block;
  width: 100%; aspect-ratio: 3 / 4;
  object-fit: cover; object-position: top;
  border: 1px solid var(--rule-1);
  background: #fff;
  cursor: zoom-in;
}
.paper-thumb figcaption {
  display: flex; align-items: center; gap: 4px;
  margin-top: 5px;
}
.thumb-n {
  font-family: var(--cap);
  font-size: 11px; color: var(--ink-3);
  margin-right: auto;
}
.thumb-btn {
  width: 22px; height: 22px;
  display: inline-grid; place-items: center;
  padding: 0;
  border: 1px solid var(--rule-1);
  border-radius: 4px;
  background: var(--paper-0);
  color: var(--ink-2);
  font-size: 13px; line-height: 1;
  cursor: pointer;
}
.thumb-btn:hover { background: var(--paper-2); color: var(--ink-1); }
.thumb-x:hover { border-color: var(--stamp); background: var(--stamp-w); color: var(--stamp); }

/* 명단에서 '이 학생은 종이로 냈다'는 표시. */
.on-paper { font-family: var(--cap); font-size: 11.5px; color: var(--ink-2); }

/* ---- 크게 보기 ---- */
.lightbox {
  position: fixed; inset: 0;
  z-index: 300;
  display: grid; place-items: center;
  padding: 28px;
  background: rgba(10, 14, 20, .93);
  cursor: zoom-out;
  overflow: auto;
}
.lightbox img {
  max-width: 100%;
  /* 손글씨는 세로로 긴 한 장이 많다. 화면을 넘으면 스크롤해서 읽는다. */
  height: auto;
  background: #fff;
}
.lightbox-x {
  position: fixed; top: 18px; right: 18px;
  padding: 7px 13px;
  border: 1px solid rgba(255, 255, 255, .45);
  border-radius: 5px;
  background: transparent;
  color: #fff;
  font-family: var(--cap); font-size: 12px; font-weight: 700;
  cursor: pointer;
}
.lightbox-x:hover { background: rgba(255, 255, 255, .14); }

@media (max-width: 760px) {
  .paper-sheet { padding: 16px; gap: 16px; }
  .paper-shelf { grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: 10px; }
  .lightbox { padding: 12px; }
}

/* =========================================================================
   구글 로그인 단추 — 구글이 정한 모양 그대로

   학원 원부의 색을 입히지 않는다. 흰 바탕, 회색 테, 네 색 G.
   누구나 아는 모양이어야 처음 온 학생이 망설이지 않는다.
   ========================================================================= */
.google-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; height: 46px;
  padding: 0 18px;
  border: 1px solid #747775;
  border-radius: 999px;
  background: #ffffff;
  color: #1f1f1f;
  font-family: var(--kr);
  font-size: 14.5px; font-weight: 500; letter-spacing: .01em;
  cursor: pointer;
  transition: background .12s ease, box-shadow .12s ease;
}
.google-btn svg { width: 19px; height: 19px; flex: none; }
.google-btn:hover {
  background: #f8faff;
  box-shadow: 0 1px 2px rgba(60, 64, 67, .3), 0 1px 3px 1px rgba(60, 64, 67, .15);
}
.google-btn:focus-visible { outline: 2px solid var(--rule-2); outline-offset: 2px; }
.google-btn:disabled { cursor: progress; opacity: .72; box-shadow: none; }
:root[data-theme="dark"] .google-btn { background: #131314; border-color: #8e918f; color: #e3e3e3; }
:root[data-theme="dark"] .google-btn:hover { background: #1d1e20; }

/* 입력 칸 아래, 두 칸이 서로 어긋날 때만 뜨는 한 줄. */
.field-warn {
  margin-top: 7px;
  padding: 7px 10px;
  background: var(--stamp-w);
  border-left: 2px solid var(--stamp);
  font-size: 12.5px; line-height: 1.6; color: var(--stamp);
}

/* =========================================================================
   학생 찾기
   ========================================================================= */
.st-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 14px; }
.st-search { position: relative; display: block; flex: 0 1 340px; min-width: 220px; }
.st-search .input { padding-left: 34px; }
.st-search-icon {
  position: absolute; left: 11px; top: 50%; transform: translateY(-50%);
  display: grid; color: var(--ink-2); pointer-events: none;
}
.st-search-icon svg { width: 15px; height: 15px; }
.st-count { font-family: var(--cap); font-size: 12px; font-weight: 700; color: var(--ink-2); }
.st-chips { display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto; }
.st-none { margin: 0; padding: 22px 0; text-align: center; font-size: 13px; color: var(--ink-3); }
@media (max-width: 760px) {
  .st-search { flex-basis: 100%; }
  .st-chips { margin-left: 0; }
}

/* =========================================================================
   승인 — 처음 보는 계정
   ========================================================================= */
.pending-card { border-top: 3px solid var(--stamp); }
.pending-lead {
  margin: 0; padding: 11px 20px;
  font-size: 13px; line-height: 1.7; color: var(--ink-2);
  border-bottom: 1px solid var(--rule-1);
}
.pending-row {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--rule-1);
}
.pending-row:last-child { border-bottom: none; }
.pending-who { display: grid; gap: 2px; min-width: 0; flex: 1 1 220px; }
.pending-name { font-size: 14px; font-weight: 700; }
.pending-meta { font-size: 12px; color: var(--ink-2); overflow-wrap: anywhere; }
.pending-acts { display: flex; gap: 6px; flex-wrap: wrap; }

/* 기다리는 사람이 보는 화면 */
.pending-text { margin: 0 0 8px; font-size: 14px; line-height: 1.75; color: var(--ink-1); }
.pending-en { margin-bottom: 18px; font-size: 13px; color: var(--ink-2); }
.pending-btn { width: 100%; margin-top: 10px; padding: 11px; }

/* =========================================================================
   선생님 — 담당 학년
   ========================================================================= */
.t-note {
  margin: 0; padding: 10px 14px;
  background: var(--paper-2);
  border-left: 2px solid var(--rule-2);
  font-size: 12.5px; line-height: 1.7; color: var(--ink-2);
}
.t-grades { display: inline-flex; flex-wrap: wrap; gap: 4px; }
.t-all { font-size: 13px; }
.t-hint { margin-left: 4px; font-size: 11.5px; color: var(--ink-3); }
.t-grade-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(76px, 1fr)); gap: 6px; }
.t-grade {
  display: flex; align-items: center; gap: 7px;
  padding: 7px 10px;
  border: 1px solid var(--rule-1); border-radius: 5px;
  background: var(--paper-0);
  font-family: var(--lat); font-size: 13px; font-weight: 700;
  cursor: pointer;
}
.t-grade:has(input:checked) { border-color: var(--rule-2); background: var(--paper-2); }
.t-grade:has(input:disabled) { cursor: default; opacity: .6; }
.t-grade input { margin: 0; accent-color: var(--ink-1); }

/* 수업기록 — 숙제 마감은 글 아래, 고치기 단추는 머리줄 오른쪽 */
.lesson-main { flex: 1; min-width: 0; max-width: 68ch; }
.lesson-main .hw-due { display: inline-block; margin: 5px 0 0; }
.lesson-edit { margin-left: 4px; padding: 3px 9px; font-size: 12px; }

/* =========================================================================
   전체 내려받기 · 퇴원
   ========================================================================= */
.backup-lead { margin: 0 0 8px; font-size: 13.5px; line-height: 1.75; color: var(--ink-2); }
.backup-meta { margin: 0 0 8px; font-size: 12.5px; line-height: 1.7; color: var(--ink-2); }
.backup-warn { margin: 0 0 14px; font-size: 12.5px; line-height: 1.65; color: var(--stamp); }

.left-list > summary {
  cursor: pointer;
  padding: 4px 0 12px;
  font-size: 13px; font-weight: 700; color: var(--ink-2);
}
.left-list[open] > summary { color: var(--ink-1); }
.sc-left {
  display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
  margin-bottom: 14px; padding: 10px 14px;
  background: var(--paper-2); border: 1px solid var(--rule-1);
  font-size: 13px; line-height: 1.6; color: var(--ink-2);
}
.sc-left b { color: var(--ink-1); }

/* =========================================================================
   학부모 리포트 — 한 장짜리 통지표
   화면에서는 종이 한 장처럼, 인쇄하면 그 종이만 나온다.
   ========================================================================= */
.rp-tools {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  max-width: 820px; margin: 0 auto 16px;
}
.rp-tools .select { width: auto; min-width: 190px; }
.rp-tools-note { font-size: 12.5px; color: var(--ink-2); }

.rp-sheet {
  max-width: 820px; margin: 0 auto;
  padding: 34px 40px 26px;
  background: var(--paper-0);
  border: 1px solid var(--rule-1);
  border-top: 3px solid var(--rule-2);
}
.rp-head { display: grid; gap: 14px; }
.rp-brand { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 700; color: var(--ink-2); }
.rp-brand .brand-mark, .rp-logo { margin: 0; }
.rp-logo.logo-img { width: 30px; height: 30px; }
.rp-title { font-size: 25px; letter-spacing: -.025em; text-wrap: balance; }
.rp-period { margin-left: 6px; font-size: 16px; font-weight: 700; color: var(--ink-2); letter-spacing: -.01em; }
.rp-id {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  border-top: 2px solid var(--rule-2);
}
.rp-id div { padding: 9px 12px 9px 0; border-bottom: 1px solid var(--rule-1); }
.rp-id dt { font-size: 10.5px; font-weight: 700; color: var(--ink-2); }
.rp-id dd { margin: 3px 0 0; font-size: 14px; font-weight: 700; overflow-wrap: anywhere; }

.rp-sum {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 20px;
  border: 1px solid var(--rule-1);
}
.rp-fig { padding: 12px 14px; border-right: 1px solid var(--rule-1); }
.rp-fig:last-child { border-right: none; }
.rp-fig-k { display: block; font-size: 11px; font-weight: 700; color: var(--ink-2); }
.rp-fig-v { display: block; margin-top: 4px; font-size: 20px; font-weight: 800; font-variant-numeric: tabular-nums; }
.rp-fig-h { display: block; margin-top: 2px; font-size: 11.5px; color: var(--ink-2); }

.rp-sec { margin-top: 28px; }
.rp-sec h3 { font-size: 14.5px; padding-bottom: 7px; border-bottom: 2px solid var(--rule-2); }
.rp-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.rp-table th {
  text-align: left;
  padding: 8px 10px 6px 0;
  font-size: 10.5px; font-weight: 700; color: var(--ink-2);
  border-bottom: 1px solid var(--rule-1);
}
.rp-table td { padding: 9px 10px 9px 0; border-bottom: 1px solid var(--rule-1); vertical-align: top; }
.rp-table .num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.rp-table th:last-child, .rp-table td:last-child { padding-right: 0; }
.rp-lift { font-weight: 400; color: var(--ink-2); }
.rp-note { margin: 7px 0 0; font-size: 11.5px; color: var(--ink-2); }
.rp-empty { margin: 0; padding: 12px 0; font-size: 13px; color: var(--ink-3); }

.rp-lesson {
  display: grid; grid-template-columns: 104px minmax(0, 1fr); gap: 4px 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--rule-1);
  break-inside: avoid;
}
.rp-lesson-date { font-size: 12.5px; font-weight: 700; font-variant-numeric: tabular-nums; }
.rp-lesson-who { display: block; margin-top: 2px; font-size: 11.5px; font-weight: 400; color: var(--ink-2); }
.rp-lesson-body { font-size: 13px; line-height: 1.7; white-space: pre-wrap; }
.rp-lesson-hw { display: block; margin-top: 4px; color: var(--ink-2); }
.rp-lesson-hw b { color: var(--ink-1); margin-right: 4px; }

.rp-comment-input { margin-top: 10px; min-height: 130px; }
.rp-comment-print { display: none; margin-top: 10px; font-size: 13.5px; line-height: 1.85; white-space: pre-wrap; }
.rp-comment-hint { margin: 6px 0 0; font-size: 11.5px; color: var(--ink-3); }
.rp-foot {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  margin-top: 32px; padding-top: 12px;
  border-top: 1px solid var(--rule-1);
  font-size: 11.5px; color: var(--ink-2);
}

@media (max-width: 760px) {
  .rp-sheet { padding: 20px 16px 18px; }
  .rp-title { font-size: 21px; }
  .rp-id { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rp-sum { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rp-fig:nth-child(2) { border-right: none; }
  .rp-fig:nth-child(-n+2) { border-bottom: 1px solid var(--rule-1); }
  .rp-lesson { grid-template-columns: 1fr; }
}

@media print {
  @page { size: A4; margin: 14mm 13mm 16mm; }
  html, body { background: #ffffff !important; }
  .sidebar, .topbar, .rp-tools, .toasts, .m-bar, .m-tabs, .m-drawer { display: none !important; }
  .shell { display: block !important; }
  .main, .page { display: block; background: #ffffff !important; padding: 0 !important; max-width: none !important; }
  .rp-sheet { max-width: none; padding: 0; border: none; background: #ffffff; color: #111111; }
  .rp-comment-input, .rp-comment-hint { display: none !important; }
  .rp-comment-print { display: block !important; }
  .rp-table tr, .rp-fig { break-inside: avoid; }
  .rp-sec h3 { break-after: avoid; }
}

/* =========================================================================
   휴대폰 — 860px 아래

   왼쪽 장부 목차는 옆에서 밀려 나오는 서랍이 되고, 위에는 얇은 머리줄만 남는다.
   예전에는 목차가 모든 화면 위에 통째로 쌓여서, 원장님 화면은 첫 화면이
   전부 목차였다. 학생은 다섯 화면을 엄지로 오가도록 아래에 탭을 둔다.
   ========================================================================= */
.m-bar, .m-tabs, .m-scrim { display: none; }

@media (max-width: 860px) {
  /* 짧은 화면에서 격자가 줄 높이를 늘려 머리줄까지 키우지 않게. 머리줄은 제 높이, 나머지는 본문. */
  .shell { grid-template-rows: auto minmax(0, 1fr); }
  .m-bar {
    display: flex; align-items: center; gap: 8px;
    position: sticky; top: 0; z-index: 40;
    min-height: 54px;
    padding: 0 12px 0 4px;
    background: var(--paper-0);
    border-bottom: 2px solid var(--rule-2);
  }
  .m-menu {
    flex: none; width: 44px; height: 44px;
    display: grid; place-items: center;
    padding: 0; border: none; border-radius: 6px;
    background: none; color: var(--ink-1);
    cursor: pointer;
  }
  .m-menu svg { width: 22px; height: 22px; }
  .m-menu:active { background: var(--paper-2); }
  .m-menu:focus-visible { outline: 2px solid var(--rule-2); outline-offset: 1px; }
  .m-brand { display: flex; align-items: center; gap: 9px; min-width: 0; color: var(--ink-1); text-decoration: none; }
  .m-brand .brand-mark, .m-logo { margin: 0; }
  .m-logo.logo-img { width: 30px; height: 30px; }
  .m-brand-text {
    font-size: 15px; font-weight: 700; letter-spacing: -.02em;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  }

  /* 서랍 */
  .sidebar {
    position: fixed; top: 0; bottom: 0; left: 0; z-index: 60;
    width: min(84vw, 320px); height: auto;
    padding-bottom: env(safe-area-inset-bottom);
    border-right: 2px solid var(--rule-2); border-bottom: none;
    transform: translateX(-102%);
    visibility: hidden;
    transition: transform .24s cubic-bezier(.16, 1, .3, 1), visibility 0s linear .24s;
  }
  .shell.nav-open .sidebar {
    transform: none;
    visibility: visible;
    transition: transform .24s cubic-bezier(.16, 1, .3, 1), visibility 0s;
  }
  .m-scrim {
    display: block;
    position: fixed; inset: 0; z-index: 50;
    background: rgba(12, 18, 28, .42);
    opacity: 0; pointer-events: none;
    transition: opacity .2s ease-out;
  }
  .shell.nav-open .m-scrim { opacity: 1; pointer-events: auto; }
  body.no-scroll { overflow: hidden; }
  .nav-item { min-height: 44px; padding: 10px 18px; }
  .course-switch .select { min-height: 42px; }

  /* 머리줄은 m-bar가 맡는다. 제목 줄은 붙어 있지 않고 화면과 같이 흘러간다. */
  .topbar { position: static; padding: 16px 16px 12px; gap: 10px 12px; align-items: flex-start; }
  .topbar h1 { font-size: 20px; line-height: 1.3; }
  .topbar-actions { width: 100%; margin-left: 0; }
  .topbar-actions .btn { min-height: 40px; }
  .page { padding-bottom: 40px; }

  /* 학생 탭 */
  .shell.has-tabs .page { padding-bottom: calc(96px + env(safe-area-inset-bottom)); }
  .m-tabs {
    display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr);
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
    padding-bottom: env(safe-area-inset-bottom);
    background: var(--paper-0);
    border-top: 2px solid var(--rule-2);
  }
  .m-tab {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
    min-height: 58px; margin-top: -2px; padding: 7px 2px 8px;
    border-top: 3px solid transparent;
    color: var(--ink-2); text-decoration: none;
    font-size: 11px; font-weight: 700;
  }
  .m-tab.active { color: var(--ink-1); border-top-color: var(--stamp); }
  .m-tab:focus-visible { outline: 2px solid var(--rule-2); outline-offset: -3px; }
  .m-tab-icon { position: relative; display: grid; place-items: center; }
  .m-tab-icon svg { width: 22px; height: 22px; }
  .m-tab-count {
    position: absolute; top: -6px; right: -13px;
    min-width: 17px; padding: 0 4px;
    background: var(--stamp); color: var(--paper-0);
    font-family: var(--lat); font-size: 10.5px; line-height: 16px; text-align: center;
  }
  body:has(.m-tabs) .toasts { bottom: calc(78px + env(safe-area-inset-bottom)); }

  /* 주차 줄 — 'this week' 같은 표시가 제목을 한 글자씩 밀어내지 않게 아래 줄로 */
  .wk-sum { flex-wrap: wrap; gap: 6px 12px; padding: 12px 14px; }
  .wk-sum-title { flex: 1 1 calc(100% - 64px); }
  .wk-sum-tags { flex-basis: 100%; padding-left: 46px; }
  .wk-sum-tags:empty { display: none; }
}

@media print {
  .m-bar, .m-tabs, .m-scrim { display: none !important; }
}

/* 선생님 창 — '.field label'이 칸 안의 라벨까지 작은 회색 글씨로 만들어서 되돌린다. */
.field .t-grade {
  display: flex; margin: 0;
  font-family: var(--lat); font-size: 13px; font-weight: 700; color: var(--ink-1);
}
.field .t-admin {
  display: flex; align-items: flex-start; gap: 10px;
  margin: 0; padding: 10px 12px;
  border: 1px solid var(--rule-1); border-radius: 5px;
  background: var(--paper-0);
  font-family: var(--kr); font-size: 13.5px; font-weight: 400; color: var(--ink-1);
  cursor: pointer;
}
.field .t-admin:has(input:checked) { border-color: var(--rule-2); background: var(--paper-2); }
.field .t-admin:has(input:disabled) { cursor: default; }
.t-admin input { flex: none; margin: 3px 0 0; accent-color: var(--ink-1); }
.t-admin b { display: block; font-weight: 700; }
.t-admin-note { display: block; margin-top: 3px; font-size: 12px; line-height: 1.6; color: var(--ink-2); }