:root {
  color-scheme: light;
  --bg: #f5f7f4;
  --panel: #ffffff;
  --ink: #17201a;
  --muted: #667064;
  --line: #dce3da;
  --green: #246b4f;
  --green-dark: #174b37;
  --blue: #315f9d;
  --yellow: #f1c84b;
  --red: #c75045;
  --shadow: 0 18px 48px rgba(24, 36, 28, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  letter-spacing: 0;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.62;
}

button[aria-busy="true"] {
  cursor: progress;
}

.submit-progress-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 22px;
  background: rgba(245, 247, 244, 0.74);
  backdrop-filter: blur(2px);
}

.submit-progress-overlay[hidden] {
  display: none;
}

.submit-progress-card {
  width: min(420px, 100%);
  border: 1px solid rgba(36, 107, 79, 0.22);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
  padding: 24px;
  display: grid;
  justify-items: center;
  gap: 12px;
  text-align: center;
}

.submit-progress-card strong {
  font-size: 20px;
}

.submit-progress-card p,
.submit-progress-card small {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.submit-progress-card p {
  color: var(--ink);
  font-weight: 700;
}

.submit-progress-spinner {
  width: 42px;
  height: 42px;
  border: 4px solid #e3ece5;
  border-top-color: var(--green);
  border-radius: 999px;
  animation: submit-spin 0.85s linear infinite;
}

@keyframes submit-spin {
  to {
    transform: rotate(360deg);
  }
}

.app-shell {
  display: grid;
  grid-template-columns: 304px 1fr;
  min-height: 100vh;
}

.app-shell.login-layout {
  grid-template-columns: 388px 1fr;
}

.boot-status {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--bg);
  color: var(--ink);
}

.boot-status-content {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.boot-status-spinner {
  width: 28px;
  height: 28px;
  border: 3px solid #dfe8e1;
  border-top-color: var(--green);
  border-radius: 999px;
  animation: submit-spin 0.85s linear infinite;
}

.app-shell:not(.auth-booting) .boot-status {
  display: none;
}

.app-shell.auth-booting .login-panel,
.app-shell.auth-booting .nav,
.app-shell.auth-booting .main,
.app-shell.auth-booting .topbar {
  display: none;
}

.sidebar {
  border-right: 1px solid var(--line);
  background: #eef3ed;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: var(--green);
  color: white;
  font-weight: 800;
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  line-height: 1.28;
  word-break: keep-all;
}

.brand span,
.muted,
.eyebrow,
.analysis-box span {
  color: var(--muted);
  font-size: 13px;
}

.nav {
  display: grid;
  gap: 8px;
}

.nav-button {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  border-radius: 8px;
  min-height: 44px;
  text-align: left;
  padding: 0 14px;
}

.nav-button.active,
.nav-button:hover {
  background: white;
  border-color: var(--line);
  color: var(--ink);
}

.login-panel,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.login-panel {
  padding: 18px;
  display: grid;
  gap: 14px;
}

.login-panel > * {
  min-width: 0;
}

.admin-gate {
  display: grid;
  gap: 16px;
  margin-bottom: 18px;
}

.admin-login-row {
  display: grid;
  grid-template-columns: minmax(220px, 360px) auto;
  gap: 12px;
  align-items: end;
}

.admin-login-row h3,
.admin-login-row p {
  grid-column: 1 / -1;
  margin: 0;
}

.admin-login-row label {
  margin: 0;
}

.settings-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 14px;
}

.settings-box,
.pin-form {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfa;
}

.settings-box h3,
.pin-form h3 {
  margin: 0;
  font-size: 15px;
}

.link-list {
  display: grid;
  gap: 8px;
}

.link-group {
  display: grid;
  gap: 8px;
}

.link-group-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.link-group-title strong {
  font-size: 14px;
}

.link-group-title span {
  color: var(--muted);
  font-size: 12px;
}

.link-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  background: white;
}

.link-row a {
  color: var(--blue);
  overflow-wrap: anywhere;
}

.login-panel h2,
.panel h2 {
  margin: 0;
  font-size: 18px;
}

.login-panel input {
  font-size: 12.5px;
  min-width: 0;
}

.turnstile-holder {
  max-width: 100%;
  overflow: hidden;
}

.turnstile-holder iframe {
  max-width: 100%;
}

#loginState {
  border-radius: 8px;
  padding: 8px 10px;
}

#loginState.login-state-error {
  border: 1px solid #e3766a;
  background: #fff5f2;
  color: #d12b1c;
  font-weight: 800;
}

#loginState.login-state-success {
  border: 1px solid #b9dcc9;
  background: #f2faf5;
  color: #236246;
  font-weight: 800;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  color: var(--ink);
  padding: 12px;
  outline: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(36, 107, 79, 0.14);
}

.secret-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 42px;
  gap: 5px;
  align-items: center;
}

.secret-input-row input {
  min-width: 0;
}

.secret-toggle {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #eef3ed;
  color: var(--ink);
  min-height: 44px;
  padding: 0 5px;
  font-size: 12px;
  font-weight: 700;
}

.secret-toggle:hover {
  background: white;
}

.primary-button,
.icon-button {
  border: 0;
  border-radius: 8px;
  min-height: 44px;
}

.primary-button {
  background: var(--green);
  color: white;
  padding: 0 18px;
  font-weight: 700;
}

.primary-button:hover {
  background: var(--green-dark);
}

.icon-button {
  width: 48px;
  background: var(--blue);
  color: white;
  font-size: 22px;
}

.main {
  min-width: 0;
  padding: 26px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 6px;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: 32px;
  line-height: 1.12;
}

.status-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.status-strip span,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border-radius: 999px;
  background: #e5ece3;
  color: #314238;
  padding: 0 12px;
  font-size: 13px;
  font-weight: 700;
}

.status-strip span[data-state="saving"] {
  background: #fff3c4;
  color: #6f5615;
}

.status-strip span[data-state="saved"] {
  background: #dff1e7;
  color: #1d5b42;
}

.status-strip span[data-state="error"] {
  background: #fde2dd;
  color: #9a2f25;
}

.status-strip .version-badge {
  background: #eef1f5;
  color: #667085;
  font-size: 12px;
  font-weight: 700;
}

.status-button {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  color: var(--ink);
  min-height: 30px;
  padding: 0 12px;
  font-size: 13px;
  font-weight: 700;
}

.status-button:hover {
  border-color: var(--green);
  color: var(--green);
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.view.collapsed {
  display: none;
}

.dashboard-grid,
.admin-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.panel {
  padding: 20px;
}

.admin-home-card {
  position: sticky;
  top: 0;
  z-index: 5;
}

.admin-section.hidden-by-tab {
  display: none;
}

.admin-section-tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.admin-section-tab {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  color: var(--muted);
  font-weight: 900;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-section-tab:hover {
  border-color: var(--green);
  color: var(--green);
}

.admin-section-tab.active {
  border-color: var(--green);
  background: var(--green);
  color: #fff;
  box-shadow: inset 3px 0 0 rgba(0, 0, 0, 0.28);
}

/* 결제군(정규수강료~현금영수증) 시각 그룹 — 비활성 탭만 살짝 따뜻한 톤 */
.admin-section-tab[data-admin-tab="tuition"]:not(.active),
.admin-section-tab[data-admin-tab="sales"]:not(.active),
.admin-section-tab[data-admin-tab="paymentReminder"]:not(.active),
.admin-section-tab[data-admin-tab="extraFees"]:not(.active),
.admin-section-tab[data-admin-tab="cashReceipt"]:not(.active) {
  background: #fff8ef;
}

/* ★fix180: 모바일 관리자 탭 = 2열 그리드(스크린샷2처럼 16개 한눈에, 가로 스와이프 없음). .admin-home-card 1열 규칙(특이성 0,2,0)을 이기려 같은 특이성 + 후순위로 지정. */
@media (max-width: 720px) {
  .admin-section-tabs,
  .admin-home-card .admin-section-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .admin-section-tab,
  .admin-home-card .admin-section-tab { width: auto; min-height: 54px; white-space: normal; overflow: visible; text-overflow: clip; font-size: 15px; padding: 8px 10px; text-align: center; line-height: 1.3; }
}

/* 대형 목록(로스터 101명·제출 다수) 스크롤 렉 완화 — 화면 밖 카드 렌더 스킵(네이티브) */
.submission-card {
  content-visibility: auto;
  contain-intrinsic-size: auto 132px;
}

.admin-summary {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.summary-tile {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 14px;
}

.summary-tile span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 6px;
}

.summary-tile strong {
  font-size: 24px;
}

.usage-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 10px;
  margin: 12px 0;
}

.usage-toolbar label {
  max-width: 180px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.usage-toolbar input {
  min-height: 38px;
  margin-top: 6px;
}

.muted-label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.operation-checklist {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.check-item {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 13px;
}

.check-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  margin-top: 5px;
  background: var(--yellow);
}

.check-item.ok .check-dot {
  background: var(--green);
}

.check-item.warn .check-dot {
  background: var(--red);
}

.check-item strong {
  display: block;
  font-size: 14px;
}

.check-item p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.ops-alert-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.ops-alert-grid.empty {
  color: var(--muted);
}

.ops-alert-column {
  display: grid;
  gap: 10px;
  align-content: start;
}

.ops-alert-column h3 {
  margin: 0;
  font-size: 15px;
}

.ops-alert-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
}

.ops-alert-card.warn {
  border-color: #e5b1a9;
  background: #fff7f5;
}

.ops-alert-card.notice {
  border-color: #d8c273;
  background: #fffaf0;
}

.ops-alert-card.wide {
  grid-column: 1 / -1;
}

.ops-alert-card header,
.ops-alert-card footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.ops-alert-card footer {
  justify-content: flex-start;
  margin-top: 10px;
}

.ops-alert-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.quality-detail-list {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.quality-detail-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  border: 1px solid #e7ece7;
  border-radius: 8px;
  background: white;
  padding: 10px;
}

.quality-detail-row p {
  margin: 4px 0 0;
}

.quality-detail-row .row-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.action-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.action-board.empty {
  color: var(--muted);
}

.action-column {
  display: grid;
  align-content: start;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
}

.action-column > header,
.action-item footer,
.action-column > footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.action-column > header {
  justify-content: space-between;
}

.action-column h3 {
  margin: 0;
  font-size: 15px;
}

.action-item {
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.action-item strong {
  display: block;
  font-size: 14px;
}

.action-item p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.action-item footer {
  margin-top: 9px;
}

.onboarding-task-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.onboarding-task-board.empty {
  color: var(--muted);
}

.onboarding-task-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 13px;
  display: grid;
  gap: 9px;
}

.onboarding-task-card header,
.onboarding-task-card footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.onboarding-task-card footer {
  justify-content: flex-start;
}

.onboarding-task-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.task-list {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.task-list p {
  margin: 0;
}

.task-row {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 9px 10px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.task-row span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.task-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.audit-log-list {
  display: grid;
  gap: 10px;
}

.audit-log-list.empty {
  color: var(--muted);
}

.audit-log-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
  display: grid;
  gap: 6px;
}

.audit-log-card header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
}

.audit-log-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.review-bank-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.review-bank-list.empty {
  color: var(--muted);
}

.review-bank-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 13px;
  display: grid;
  gap: 10px;
}

.review-bank-card.ready {
  border-color: #ead79d;
  background: #fffdf3;
}

.review-bank-card header,
.review-bank-card footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.review-bank-card footer {
  justify-content: flex-start;
}

.review-bank-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.problem-bank-status {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
}

.problem-bank-status.empty {
  display: block;
  color: var(--muted);
}

.problem-bank-metric {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
}

.problem-bank-metric span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.problem-bank-metric strong {
  display: block;
  margin-top: 5px;
  line-height: 1.35;
}

.problem-bank-metric small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.problem-book-overview {
  grid-column: 1 / -1;
  display: grid;
  gap: 12px;
}

.problem-book-overview-heading {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f4f7f4;
  padding: 12px 14px;
}

.problem-book-overview-heading strong {
  font-size: 15px;
}

.problem-book-overview-heading span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.problem-book-group {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  overflow: hidden;
}

.problem-book-group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  padding: 13px 14px;
  background: #fbfcfa;
  list-style: none;
}

.problem-book-group summary::-webkit-details-marker {
  display: none;
}

.problem-book-group summary::before {
  content: "펼침";
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  color: var(--muted);
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 800;
}

.problem-book-group:not([open]) summary::before {
  content: "접힘";
}

.problem-book-group summary > span:first-of-type {
  display: grid;
  gap: 3px;
}

.problem-book-group summary strong {
  font-size: 15px;
}

.problem-book-group summary small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.problem-book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 10px;
  padding: 12px;
  border-top: 1px solid var(--line);
}

.problem-book-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
}

.problem-book-card.is-remote-only {
  background: #fffdf5;
}

.problem-book-card header,
.problem-book-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.problem-book-card header strong {
  min-width: 0;
  overflow-wrap: anywhere;
}

.problem-book-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  margin: 12px 0;
}

.problem-book-stats span {
  border: 1px solid #e6ece7;
  border-radius: 8px;
  background: white;
  padding: 8px;
}

.problem-book-stats b,
.problem-book-stats small {
  display: block;
}

.problem-book-stats b {
  font-size: 15px;
}

.problem-book-stats small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.problem-book-note {
  margin: -2px 0 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.pill.warning {
  background: #fff4d8;
  color: #735b0c;
}

.problem-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.problem-chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  color: var(--ink);
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 800;
}

.problem-chip.wrong {
  border-color: #f0c4bd;
  background: #fff2ef;
  color: #944339;
}

.problem-chip.review {
  border-color: #ead79d;
  background: #fff9df;
  color: #735b0c;
}

.problem-chip.pending {
  border-color: #cdd5e0;
  background: #f4f6f9;
  color: #5b6573;
}

.problem-chip.correct {
  border-color: #cfe8d6;
  background: #f3faf5;
  color: #3a7a52;
  font-weight: 700;
}

.problem-chip-block {
  margin-top: 6px;
}

.problem-chip-summary {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--ink);
  margin-top: 4px;
}

.problem-correct-details {
  margin-top: 8px;
}

.problem-correct-details > summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
}

.priority-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.priority-list.empty {
  color: var(--muted);
}

.priority-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 13px;
}

.priority-card header,
.priority-card footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.priority-card footer {
  justify-content: flex-start;
  margin-top: 10px;
}

.priority-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.trend-list {
  display: grid;
  gap: 10px;
}

.trend-row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) 64px 48px;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 10px 12px;
}

.trend-row span,
.trend-row em {
  color: var(--muted);
  font-size: 13px;
  font-style: normal;
}

.trend-row strong {
  text-align: right;
}

.trend-track {
  height: 9px;
  border-radius: 999px;
  background: #e7ece8;
  overflow: hidden;
}

.trend-track i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--green);
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.heading-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
}

.heading-actions input,
.heading-actions select {
  width: auto;
  min-width: 150px;
  min-height: 38px;
  padding: 8px 10px;
}

.wide-panel,
.tool-panel {
  grid-column: 1 / -1;
}

#adminContent.admin-grid {
  grid-template-columns: minmax(210px, 248px) minmax(0, 1fr);
  align-items: start;
}

#adminContent > .admin-home-card {
  grid-column: 1;
  grid-row: 1 / span 80;
  align-self: start;
  top: 16px;
}

#adminContent > .admin-section {
  grid-column: 2;
}

.admin-home-card .panel-heading {
  display: grid;
  gap: 10px;
}

.admin-home-card .heading-actions {
  justify-content: flex-start;
}

.admin-home-card .admin-section-tabs {
  grid-template-columns: 1fr;
  gap: 7px;
}

.admin-home-card .admin-section-tab {
  width: 100%;
  text-align: left;
  padding: 0 12px;
}

.nested-panel {
  margin-top: 18px;
  box-shadow: none;
}

.todo-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.todo-list li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.todo-list p,
.result-box p,
.submission-card p {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.student-plan-box {
  display: grid;
  gap: 10px;
}

.plan-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
}

.plan-row span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.plan-row strong {
  display: block;
  margin-top: 3px;
  line-height: 1.35;
}

.plan-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.analysis-mini {
  display: grid;
  gap: 5px;
  margin-top: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbf9;
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
}

.analysis-warning {
  border: 1px solid #e8c0b7;
  border-radius: 8px;
  background: #fff5f2;
  color: #9a3f34;
  padding: 8px 10px;
  font-weight: 800;
}

.analysis-positive {
  border: 1px solid #b9dcc9;
  border-radius: 8px;
  background: #f2faf5;
  color: #236246;
  padding: 8px 10px;
  font-weight: 800;
}

.analysis-review {
  border: 1px solid #dfc98f;
  border-radius: 8px;
  background: #fff9e9;
  color: #85620f;
  padding: 8px 10px;
  font-weight: 800;
}

.teacher-question-list {
  display: grid;
  gap: 8px;
  border: 1px solid #d8e5dc;
  border-radius: 8px;
  background: #ffffff;
  padding: 9px 10px;
}

.teacher-question-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.teacher-question-list ol {
  margin: 0;
  padding-left: 18px;
}

.teacher-question-list li + li {
  margin-top: 5px;
}

.wrong-note-review-mini p {
  margin: 0;
}

.wrong-note-review-mini p strong {
  color: var(--green);
}

.step-number {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: #e2efe8;
  color: var(--green);
  font-weight: 800;
}

.search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 96px;
  gap: 10px;
  align-items: stretch;
}

.search-row .primary-button {
  min-width: 96px;
  white-space: nowrap;
}

.result-box {
  margin-top: 14px;
  min-height: 92px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfa;
}

.problem-preview-image {
  display: block;
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  margin: 12px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}

.problem-final-latex-view {
  margin: 12px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fff;
}

.problem-final-latex-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  margin-bottom: 10px;
  color: #1f6b4e;
  font-size: 12px;
  font-weight: 900;
}

.problem-final-latex-text {
  color: var(--ink);
  font-size: 15px;
  line-height: 1.72;
  white-space: normal;
}

.problem-final-latex-text.compact {
  font-size: 14px;
  line-height: 1.62;
}

.latex-math-token {
  font-family: "Times New Roman", "Malgun Gothic", serif;
  color: #121815;
  word-break: break-word;
}

.latex-line-spacer {
  display: block;
  height: 8px;
}

.problem-source-fallback {
  margin-top: 12px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.problem-source-fallback summary {
  cursor: pointer;
  color: var(--muted);
  font-weight: 800;
}

.math-figure {
  display: block;
  width: min(100%, 390px);
  margin: 12px auto 2px;
  padding: 0;
}

.math-figure svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.source-crop-figure {
  width: min(100%, 520px);
}

.problem-figure-image {
  display: block;
  width: 100%;
  max-height: 300px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}

.figure-axis,
.figure-curve,
.figure-square,
.figure-main-line,
.figure-main-box,
.figure-ellipse,
.figure-tangent,
.figure-light-path,
.figure-line-through,
.figure-heavy-segment,
.figure-directrix,
.figure-dimension,
.figure-vector,
.figure-outline-fill,
.figure-drop,
.figure-segment,
.figure-right-angle,
.figure-heavy,
.figure-thin,
.figure-measure,
.figure-dash,
.figure-arch,
.figure-support-lines line {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.figure-axis {
  stroke: #4d5a54;
  stroke-width: 1.35;
}

.figure-curve,
.figure-ellipse,
.figure-heavy,
.figure-arch {
  stroke: #151b18;
  stroke-width: 2.05;
}

.figure-square,
.figure-main-line,
.figure-main-box,
.figure-tangent,
.figure-light-path,
.figure-vector,
.figure-outline-fill,
.figure-thin {
  stroke: #68756f;
  stroke-width: 1.55;
}

.figure-main-box {
  fill: none;
  stroke: #151b18;
  stroke-width: 1.85;
}

.figure-outline-fill {
  fill: none;
  stroke: #151b18;
  stroke-width: 1.75;
}

.figure-grid path {
  fill: none;
  stroke: #d5ddd8;
  stroke-width: 1;
}

.figure-vector {
  stroke: #27302c;
  stroke-width: 1.9;
}

.figure-line-through {
  stroke: #5f6b66;
  stroke-width: 1.35;
}

.figure-heavy-segment {
  stroke: #151b18;
  stroke-width: 2.3;
}

.figure-directrix {
  stroke: #9aa69f;
  stroke-width: 1.1;
  stroke-dasharray: 5 4;
}

.figure-drop,
.figure-segment,
.figure-right-angle,
.figure-measure,
.figure-dimension,
.figure-dash,
.figure-support-lines line {
  stroke: #8b9891;
  stroke-width: 1.2;
}

.figure-dimension {
  stroke-dasharray: 3 4;
}

.figure-dash {
  stroke-dasharray: 4 4;
}

.figure-tower,
.figure-point {
  fill: #151b18;
}

.figure-arrow {
  fill: none;
  stroke: #8b9891;
  stroke-width: 1.2;
}

.figure-ellipse-fill {
  fill: #eef5ef;
  stroke: #151b18;
  stroke-width: 2;
}

.figure-shade {
  fill: #dcebbd;
  opacity: 0.95;
  stroke: none;
}

.figure-light-fill,
.figure-square-fill {
  fill: #eef5ef;
  stroke: #68756f;
  stroke-width: 1.35;
  opacity: 0.95;
}

.figure-label {
  fill: #17201b;
  font-family: "Times New Roman", "Malgun Gothic", serif;
  font-size: 16px;
  font-weight: 700;
}

.figure-label.small {
  font-size: 13px;
}

.figure-label.equation {
  font-size: 15px;
  font-style: italic;
}

.figure-label-arrow {
  fill: #17201b;
  font-family: "Times New Roman", "Malgun Gothic", serif;
  font-size: 12px;
  font-weight: 700;
}

.problem-answer-details {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 10px;
}

.problem-answer-details summary {
  cursor: pointer;
  font-weight: 800;
}

body.problem-detail-open {
  overflow: hidden;
}

body.problem-detail-open::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(20, 30, 25, 0.34);
}

#problemDetailPanel.problem-detail-drawer {
  position: fixed;
  inset: 24px;
  z-index: 90;
  width: min(1180px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  margin: auto;
  overflow: auto;
  box-shadow: 0 24px 80px rgba(21, 35, 29, 0.28);
}

.problem-detail-body {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 14px;
}

.problem-ocr-details {
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 10px;
}

.problem-ocr-details summary {
  cursor: pointer;
  font-weight: 800;
}

.problem-full-text {
  white-space: pre-wrap;
  line-height: 1.7;
  font-size: 15px;
}

.problem-support-image {
  max-height: 360px;
  object-fit: contain;
  background: #fff;
}

.problem-clean-text {
  display: inline-block;
  margin-top: 6px;
  line-height: 1.6;
}

.problem-choice-list {
  margin: 10px 0 0;
  padding-left: 22px;
  display: grid;
  gap: 6px;
  color: var(--text);
}

.problem-choice-list li {
  line-height: 1.55;
}

.test-answer-list {
  gap: 8px;
}

.test-answer-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

/* The row holds a single answer input now (mode radios live above). Without this it
   inherited an old 4-column grid that squeezed the input into a ~24px cell, so students
   could not tap/type their answer. */
.test-answer-row input {
  width: 100%;
  min-height: 42px;
  box-sizing: border-box;
}

.test-answer-code {
  font-weight: 800;
}

.test-result-table {
  display: grid;
  gap: 6px;
  margin-top: 10px;
}

.test-result-row {
  display: grid;
  grid-template-columns: 58px 100px minmax(120px, 1fr) minmax(140px, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  font-size: 13px;
}

.test-result-row.correct {
  border-color: #b9dbc5;
  background: #f3faf5;
}

.test-result-row.incorrect {
  border-color: #e5b8b8;
  background: #fff5f5;
}

.test-result-row.review_needed {
  border-color: #e4d4a4;
  background: #fffaf0;
}

.notice-box {
  border: 1px solid #d9e6df;
  border-radius: 8px;
  background: #f1f7f4;
  color: #2c5b46;
  padding: 12px;
  font-size: 14px;
  font-weight: 700;
}

.notice-box span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-weight: 600;
}

.notice-box button {
  margin-top: 10px;
}

.upload-summary {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
  display: grid;
  gap: 10px;
}

.upload-summary.empty {
  color: var(--muted);
}

.upload-summary.warn {
  border-color: #e4b2a8;
  background: #fff6f4;
}

.upload-summary.caution {
  border-color: #d7b85e;
  background: #fffaf0;
}

.upload-summary-head,
.upload-file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.upload-summary-actions {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.upload-summary-head > strong {
  flex: 0 0 auto;
  white-space: nowrap;
}

.upload-summary-actions .mini-link-button {
  border: 1px solid rgba(36, 107, 79, 0.34);
  background: #edf5f0;
  min-height: 32px;
  padding: 0 12px;
  white-space: nowrap;
}

.upload-summary-head span,
.upload-file-row strong {
  color: var(--muted);
  font-size: 12px;
}

.upload-file-list {
  display: grid;
  gap: 6px;
}

.upload-file-row {
  border-top: 1px solid #edf1ed;
  padding-top: 6px;
  font-size: 13px;
}

.upload-file-row .mini-link-button {
  border: 1px solid var(--line);
  min-height: 32px;
  padding: 0 12px;
  white-space: nowrap;
}

.upload-file-row .mini-link-button.danger {
  border-color: #efc5be;
  background: #fff3f1;
  color: #9b372c;
}

.upload-file-main {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.upload-file-row span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.upload-summary p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.upload-summary .upload-action-hint {
  color: #4f5f57;
  font-size: 12px;
  font-weight: 700;
}

.submission-file-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.file-upload-card {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
}

.file-upload-card span {
  display: grid;
  gap: 3px;
  font-weight: 800;
}

.file-upload-label {
  cursor: pointer;
}

.file-upload-control-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.file-upload-control-row input[type="file"] {
  min-width: 0;
  width: 100%;
}

.file-upload-clear-button {
  min-height: 40px;
  border: 1px solid #efc5be;
  border-radius: 8px;
  background: #fff7f5;
  color: #9b372c;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
}

.file-upload-clear-button:hover {
  background: #ffece8;
}

.file-upload-card small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.upload-file-row[data-role="wrong-note"] {
  background: #fffaf0;
  border-radius: 8px;
  border: 1px solid #eadfb9;
  padding: 8px;
}

.upload-file-role {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 0 9px;
  background: #eef3ed;
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 900;
}

.source-confirm-card {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  border: 1px solid #d7b85e;
  border-radius: 8px;
  background: #fffaf0;
  padding: 12px;
  color: var(--ink);
}

.source-confirm-card input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
}

.source-confirm-card span {
  display: grid;
  gap: 4px;
}

.source-confirm-card strong {
  font-size: 14px;
  line-height: 1.45;
}

.source-confirm-card small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.upload-warning-list {
  display: grid;
  gap: 6px;
  border-top: 1px solid #eadfb9;
  padding-top: 8px;
}

.upload-warning-list span {
  border: 1px solid #eadfb9;
  border-radius: 8px;
  background: #fff6d8;
  color: #73570d;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.4;
}

.result-box.empty,
.submission-list.empty {
  color: var(--muted);
}

.result-box a {
  color: var(--blue);
  font-weight: 800;
  word-break: break-all;
}

.code-search-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  max-width: 920px;
  gap: 14px;
}

.large-label {
  font-size: 15px;
  color: var(--ink);
  font-weight: 700;
}

.submission-form {
  display: grid;
  gap: 14px;
  max-width: 780px;
}

.list-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 12px;
}

.list-heading h3 {
  margin: 0;
  font-size: 15px;
}

.collapse-toggle {
  min-height: 34px;
  padding: 0 12px;
}

.inline-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 120px 120px auto;
  gap: 10px;
  margin-bottom: 14px;
}

.toolbar-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) repeat(4, auto);
  gap: 10px;
  margin-bottom: 12px;
}

.problem-db-toolbar {
  grid-template-columns:
    minmax(260px, 2fr)
    minmax(140px, 0.8fr)
    minmax(170px, 0.9fr)
    minmax(96px, auto)
    minmax(112px, auto);
  align-items: center;
}

.problem-db-toolbar input,
.problem-db-toolbar select {
  width: 100%;
  min-width: 0;
}

.problem-db-toolbar .secondary-button {
  min-width: 96px;
  white-space: nowrap;
}

.latex-review-toolbar {
  grid-template-columns: minmax(180px, 1fr) auto auto;
  align-items: center;
}

.latex-review-toolbar select {
  width: 100%;
  min-width: 0;
}

.collapsed {
  display: none;
}

.import-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 14px;
  margin-bottom: 14px;
}

.compact-heading {
  margin-bottom: 12px;
}

.compact-heading h3 {
  margin: 0;
  font-size: 15px;
}

.import-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
}

.kakao-import-box {
  border-top: 1px solid var(--line);
  margin-top: 16px;
  padding-top: 16px;
}

.kakao-import-preview {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.kakao-draft-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 12px;
}

.kakao-draft-card header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.kakao-draft-card p {
  margin: 6px 0 0;
}

.data-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.file-import-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  color: var(--ink);
  padding: 0 14px;
  font-size: 14px;
  font-weight: 700;
}

.file-import-button input {
  display: none;
}

.compact-form {
  max-width: none;
}

.submission-list {
  display: grid;
  gap: 12px;
}

/* 접기/펼치기 수정: .collapsed 가 .submission-list 의 display 보다 뒤에 와서 안 먹던 문제 */
.submission-list.collapsed {
  display: none;
}

/* 오늘 탭 미제출/제출완료 명단: 학생이 많아도 한눈에 보이게 다단·조밀하게 */
[data-admin-section="today"] .split-list {
  grid-template-columns: 1fr;
  gap: 18px;
}
#dueStudents,
#submittedStudents {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px;
}
#dueStudents .submission-card,
#submittedStudents .submission-card {
  padding: 9px 12px;
}
#dueStudents .submission-card header,
#submittedStudents .submission-card header {
  margin-bottom: 3px;
  align-items: center;
}
#dueStudents .submission-card .student-meta,
#submittedStudents .submission-card .student-meta {
  gap: 2px 8px;
  font-size: 12px;
}

.filter-notice {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 8px 0 4px;
  padding: 10px 12px;
  border: 1px solid var(--accent, #1f7a5a);
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent, #1f7a5a) 8%, transparent);
  font-size: 0.9rem;
}

.filter-notice[hidden] {
  display: none;
}

.filter-notice button {
  margin-left: auto;
}

.submission-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfa;
}

.submission-card header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.submission-card footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.secondary-button {
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 36px;
  background: white;
  color: var(--ink);
  padding: 0 12px;
  font-weight: 700;
}

.secondary-button:hover {
  border-color: var(--green);
  color: var(--green);
}

/* Step-1 call to action in 내 테스트 — prominent so students notice it first. */
.test-load-button {
  border: 2px solid var(--green-dark);
  border-radius: 8px;
  min-height: 44px;
  background: var(--green);
  color: #fff;
  padding: 0 18px;
  font-weight: 800;
}
.test-load-button:hover {
  background: var(--green-dark);
}

.test-sheet-button {
  border: 2px solid var(--green-dark);
  border-radius: 8px;
  min-height: 44px;
  background: #fff;
  color: var(--green-dark);
  padding: 0 16px;
  font-weight: 800;
}
.test-sheet-button:hover {
  background: var(--green);
  color: #fff;
}

.submit-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  margin: 6px 0 2px;
}
.submit-kind {
  display: inline-flex;
  align-items: center;
  font-weight: 800;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
  white-space: nowrap;
}
.submit-kind-proof {
  background: #e6f4ea;
  color: #1f7a44;
  border-color: #bfe3cc;
}
.submit-kind-wrong {
  background: #fdeede;
  color: #b9620a;
  border-color: #f3d2a8;
}
.submit-kind-both {
  background: #e8e7fb;
  color: #4b35c0;
  border-color: #cdc8f2;
}
.submit-kind-none {
  background: #eef0ee;
  color: #6b7c6b;
  border-color: #d8e2d8;
}
.submit-time {
  font-size: 12.5px;
  color: var(--muted, #6b7c6b);
  font-weight: 600;
}

.test-attempt-detail {
  margin-top: 8px;
}
.test-attempt-detail > summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--green-dark, #246b4f);
  padding: 6px 4px;
  list-style: revert;
  user-select: none;
}
.test-attempt-detail > summary:hover {
  text-decoration: underline;
}

.test-score-pill.score-low {
  background: #fde7e7;
  color: #b3261e;
  border-color: #b3261e;
  font-weight: 700;
}

.pill.score-low {
  background: #fde7e7;
  color: #b3261e;
  border-color: #b3261e;
}
.pill.status-ok {
  background: #e6f4ea;
  color: #1f7a5a;
  border-color: #1f7a5a;
}
.pill.status-due {
  background: #fff3e0;
  color: #b26a00;
  border-color: #b26a00;
}

.today-test-block {
  margin-top: 14px;
}

.submission-test-section {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
}
.submission-test-section > summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--green-dark, #246b4f);
  user-select: none;
}
.submission-test-section[open] > summary {
  margin-bottom: 10px;
}
.test-attempt-detail[open] > summary {
  margin-bottom: 6px;
}

.test-sheet-admin {
  margin: 10px 0 4px;
}
.test-sheet-admin-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 10px 12px;
  border: 1px solid var(--border, #d8e2d8);
  border-radius: 10px;
  background: var(--surface-soft, #f4f8f4);
}
.test-sheet-admin-label {
  font-weight: 800;
}
.test-sheet-admin-actions {
  display: flex;
  gap: 6px;
  margin-left: auto;
  flex-wrap: wrap;
}
.test-sheet-admin-actions .ghost-button.danger {
  color: #c0392b;
  border-color: #e3b7b1;
}
.test-sheet-admin-hint {
  margin: 6px 2px 0;
  font-size: 12px;
  color: var(--muted, #6b7c6b);
}

.link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.split-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.split-list h3 {
  margin: 0 0 10px;
  font-size: 15px;
}

.collapsible-section {
  margin-top: 0;
}

.student-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0;
}

.student-meta span {
  border-radius: 999px;
  background: #edf1ed;
  color: #34443a;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
}

.inactive-card {
  opacity: 0.72;
}

.payment-due-card {
  border-color: #e7c8a0;
  background: #fffaf1;
}

.inactive-card .pill {
  background: #f3e5e2;
  color: #944339;
}

.student-edit-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
/* ★fix214: 조교→최고관리자 승격 체크박스(폼 가로 전체 차지, 체크박스+설명 가로배치) */
.staff-superadmin-row { grid-column: 1 / -1; display: flex; flex-direction: row; align-items: flex-start; gap: 8px; font-size: 12.5px; color: #51635a; }
.staff-superadmin-row input { width: auto; margin-top: 2px; flex-shrink: 0; }

.admin-foldout {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 0;
  overflow: hidden;
}

.admin-foldout summary {
  cursor: pointer;
  padding: 13px 14px;
  font-weight: 800;
  color: var(--ink);
  background: #f4f7f4;
  border-bottom: 1px solid var(--line);
}

.admin-foldout:not([open]) summary {
  border-bottom: 0;
}

.admin-foldout .student-edit-form,
.admin-foldout .result-box {
  margin: 14px;
}

.student-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 14px;
}

.detail-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 14px;
}

.detail-box h3 {
  margin: 0 0 10px;
  font-size: 15px;
}

.detail-list {
  display: grid;
  gap: 8px;
}

.detail-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid #eef2ee;
  padding-bottom: 7px;
}

.detail-line span {
  color: var(--muted);
}

/* ★fix211: 신규설문 원본 답변 접이식 */
.intake-answers { margin-top: 10px; }
.intake-answers summary { cursor: pointer; font-weight: 600; color: #1f6b4e; font-size: 13px; padding: 4px 0; }
.intake-answers .detail-list { margin-top: 8px; }
.intake-answers .detail-list > div { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px solid #eef2ee; padding-bottom: 6px; font-size: 13px; }
.intake-answers .detail-list > div span { color: var(--muted); flex-shrink: 0; }
.intake-answers .detail-list > div strong { text-align: right; word-break: break-word; }

.problem-latex-review-box {
  grid-column: 1 / -1;
  background: #fffdf7;
}

.problem-latex-grid {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.problem-latex-snippet {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  overflow: hidden;
}

.problem-latex-snippet span {
  display: block;
  padding: 8px 10px;
  color: var(--muted);
  font-weight: 800;
  border-bottom: 1px solid var(--line);
}

.problem-latex-snippet pre {
  max-height: 190px;
  margin: 0;
  padding: 10px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink);
}

.problem-latex-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.problem-latex-action-state {
  margin: 8px 0 0;
}

.problem-latex-action-state.error {
  color: #9f1d20;
  font-weight: 800;
}

.latex-review-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.latex-review-summary span,
.latex-review-reasons li {
  border-radius: 8px;
  background: #eef4ef;
  color: #314239;
  padding: 7px 9px;
  font-size: 12px;
  font-weight: 800;
}

.latex-review-card {
  background: #fffdf7;
}

.latex-review-card.latex-quality-needs-regeneration {
  border-color: #d98989;
}

.latex-review-card.latex-quality-hold {
  border-color: #e1c16f;
}

.latex-review-card.latex-quality-approve-ready {
  border-color: #78b28e;
}

.latex-review-card .latex-quality-pill {
  background: #eef4ef;
  color: #25362d;
}

.latex-review-compare-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.latex-review-preview {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 10px;
  min-width: 0;
}

.latex-review-preview h3 {
  margin: 0 0 8px;
  font-size: 14px;
}

.latex-review-preview .problem-preview-image {
  max-height: 260px;
  object-fit: contain;
  background: #f8faf8;
}

.latex-review-ai {
  display: grid;
  gap: 8px;
}

.latex-review-ai .problem-latex-snippet pre {
  max-height: 130px;
}

.latex-review-reasons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.wide-field,
.form-actions {
  grid-column: 1 / -1;
}

.assigned-curricula {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.assigned-curricula > strong {
  font-size: 0.92rem;
}
.assigned-curricula-row {
  display: flex;
  gap: 8px;
}
.assigned-curricula-row input[list] {
  flex: 1 1 auto;
  min-width: 0;
}
.assigned-curricula-row input[type="number"] {
  flex: 0 0 96px;
  width: 96px;
}

.danger-button {
  color: #b3261e;
  border-color: #f1c4c0;
}
.danger-button:hover {
  background: #fdeceb;
  border-color: #e7a39d;
}

.form-hint {
  margin: 0;
  border: 1px solid #dbe6dc;
  border-radius: 8px;
  background: #f7faf6;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.form-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.day-checkbox-group {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.day-checkbox-group legend {
  padding: 0 4px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.day-checkbox-group label {
  width: auto;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 0 12px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}

.day-checkbox-group input {
  width: 16px;
  height: 16px;
  accent-color: var(--green);
}

.day-checkbox-group label:has(input:checked) {
  border-color: var(--green);
  background: #edf6f0;
  color: #1d5a3a;
}

.weekday-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.weekday-tile {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfa;
}

.weekday-tile strong {
  display: block;
  margin-bottom: 4px;
}

.weekday-tile span {
  color: var(--muted);
  font-size: 13px;
}

.submission-card strong {
  font-size: 16px;
}

.file-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.file-list span {
  border-radius: 999px;
  background: #edf1ed;
  padding: 6px 10px;
  font-size: 12px;
}

.file-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  background: #edf1ed;
  padding: 6px 8px 6px 10px;
  font-size: 12px;
}

.file-chip.is-warning {
  background: #fff4e5;
  color: #7a4a04;
}

.submission-file-sections {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}

.submission-file-section {
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: 8px;
  padding: 10px;
  background: rgba(248, 250, 252, 0.86);
}

.submission-file-section[data-role="wrong-note"] {
  border-color: rgba(37, 99, 235, 0.18);
  background: rgba(239, 246, 255, 0.8);
}

.submission-file-section header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  margin-bottom: 4px;
}

.submission-file-section p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.86rem;
}

.mini-link-button {
  border: 0;
  border-radius: 999px;
  background: white;
  color: var(--green);
  padding: 4px 7px;
  font-size: 12px;
  font-weight: 800;
}

.mini-link-button.danger {
  color: #a53b2f;
}

.analysis-box {
  display: grid;
  gap: 10px;
}

.analysis-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.analysis-summary div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
  display: grid;
  gap: 4px;
}

.analysis-summary span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.analysis-summary strong {
  font-size: 22px;
}

.analysis-queue-list {
  margin-bottom: 14px;
}

.analysis-box div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px;
  display: grid;
  gap: 4px;
}

.student-rhythm-box {
  display: grid;
  gap: 12px;
}

.student-rhythm-box.empty {
  color: var(--muted);
}

.rhythm-summary {
  margin-bottom: 0;
}

.study-rhythm-note {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 12px;
  display: grid;
  gap: 6px;
}

.study-rhythm-note p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.study-rhythm-list {
  display: grid;
  gap: 8px;
}

.study-rhythm-day {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.study-rhythm-day span {
  color: var(--muted);
  font-weight: 700;
}

.study-rhythm-day.done {
  border-color: #cfe3d4;
  background: #f4faf6;
}

.study-rhythm-day.missed {
  border-color: #edd0a8;
  background: #fffaf1;
}

.study-rhythm-day.off {
  background: #fbfcfa;
}

.test-answer-list {
  gap: 12px;
}

.test-question-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  display: grid;
  gap: 10px;
  background: #fff;
}

.test-question-card.is-out-of-scope {
  background: #f6f7f4;
  opacity: 0.78;
}

.test-question-card.is-unknown {
  background: #fffaf1;
}

.test-question-card > input[type="checkbox"],
.test-question-card > .test-answer-code {
  display: none;
}

.test-question-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.test-question-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.test-question-text {
  margin: 0;
  line-height: 1.65;
  white-space: pre-wrap;
}

.test-choice-list {
  margin: 0;
  padding-left: 22px;
  display: grid;
  gap: 5px;
}

.test-response-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.test-response-option {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 0 10px;
  font-size: 13px;
  font-weight: 800;
  text-align: center;
}

.test-response-option input {
  width: 16px;
  height: 16px;
  accent-color: var(--green);
}

.test-answer-row {
  display: grid;
  gap: 10px;
}

.test-out-scope-check {
  width: auto;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 0 12px;
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}

.test-out-scope-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--green);
}

.selected-test-card {
  border-color: #2c7a57;
  box-shadow: 0 0 0 2px rgba(44, 122, 87, 0.1);
  background: #f4faf6;
}

.test-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.test-list-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 14px;
  display: grid;
  gap: 10px;
}

.test-list-card header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
}

.test-list-card strong {
  display: block;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.test-list-card p {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.test-card-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

.test-card-stats span {
  border: 1px solid #e4ebe6;
  border-radius: 8px;
  background: white;
  padding: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.test-card-stats strong {
  margin-top: 2px;
  color: var(--ink);
  font-size: 15px;
}

.warn-text,
.warn-text strong {
  color: #9a5a1f !important;
}

.test-progress-lines {
  display: grid;
  gap: 5px;
}

.test-progress-lines i {
  display: block;
  height: 6px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, var(--green) var(--value), #e6eee9 var(--value));
}

.test-progress-lines .secondary-progress {
  background:
    linear-gradient(90deg, #537d9b var(--value), #e6eee9 var(--value));
}

.test-list-card footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.test-detail-layout {
  display: grid;
  gap: 14px;
  margin-top: 14px;
}

.test-editor-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 12px;
  margin: 12px 0 14px;
}

.test-items-box {
  overflow: hidden;
}

.test-admin-table {
  display: grid;
  gap: 8px;
}

.test-admin-header {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) 112px minmax(160px, 0.45fr) 170px;
  gap: 10px;
  padding: 0 4px 2px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.test-admin-row {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) 112px minmax(160px, 0.45fr) 170px;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
}

.test-admin-row.needs-review {
  border-color: #e5d3a3;
  background: #fffaf0;
}

.test-admin-row p {
  margin: 4px 0 0;
}

.test-admin-answer,
.test-admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.test-admin-answer {
  flex-direction: column;
  align-items: flex-start;
}

.test-admin-main {
  min-width: 0;
}

.test-admin-actions {
  justify-content: flex-end;
}

.compact-list {
  gap: 8px;
}

.compact-card {
  padding: 10px;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .app-shell.login-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .admin-section-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-button {
    text-align: center;
    padding: 0 8px;
  }

  .dashboard-grid,
  .admin-grid,
  .code-search-layout,
  .admin-summary,
  .analysis-summary,
  .ops-alert-grid,
  .action-board,
  .onboarding-task-board,
  .problem-bank-status,
  .problem-detail-body,
  .review-bank-list,
  .priority-list,
  .operation-checklist,
  .weekday-grid,
  .split-list,
  .inline-form,
  .student-edit-form,
  .student-detail-grid,
  .test-admin-row,
  .test-editor-grid,
  .toolbar-row,
  .admin-login-row,
  .test-response-options,
  .test-answer-row,
  .settings-grid {
    grid-template-columns: 1fr;
  }

  .problem-db-toolbar {
    grid-template-columns: 1fr;
  }

  .latex-review-toolbar,
  .latex-review-compare-grid {
    grid-template-columns: 1fr;
  }

  #adminContent.admin-grid {
    grid-template-columns: 1fr;
  }

  #adminContent > .admin-home-card,
  #adminContent > .admin-section {
    grid-column: 1;
  }

  #problemDetailPanel.problem-detail-drawer {
    inset: 10px;
    width: calc(100vw - 20px);
    max-height: calc(100vh - 20px);
    padding: 14px;
  }

  #adminContent > .admin-home-card {
    grid-row: auto;
    position: static;
  }

  .admin-home-card .admin-section-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .test-admin-header {
    display: none;
  }

  .test-admin-actions {
    justify-content: flex-start;
  }

  .test-card-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .heading-actions {
    justify-content: flex-start;
  }

  .heading-actions input,
  .heading-actions button {
    width: 100%;
  }

  .topbar {
    display: grid;
  }

  .status-strip {
    justify-content: flex-start;
  }

  .trend-row {
    grid-template-columns: 1fr;
  }

  .quality-detail-row {
    grid-template-columns: 1fr;
  }

  .quality-detail-row .row-actions {
    justify-content: flex-start;
  }

  .trend-row strong {
    text-align: left;
  }
}

@media (max-width: 560px) {
  .main,
  .sidebar {
    padding: 16px;
  }

  h1 {
    font-size: 25px;
  }

  .nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* ★fix189: 폰(≤560px)에서도 가로스크롤(스와이프) 대신 2단 그리드 유지 — fix180(2단)을 덮어쓰던 가로스크롤 제거(오너 "스와이프해야 다른 탭 보임" 불편). */
  .admin-section-tabs,
  .admin-home-card .admin-section-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    overflow-x: visible;
  }

  .admin-section-tabs .admin-section-tab,
  .admin-home-card .admin-section-tabs .admin-section-tab {
    padding: 8px 8px;
  }

  .submission-file-groups {
    grid-template-columns: 1fr;
  }

  .file-upload-control-row {
    grid-template-columns: 1fr;
  }

  .file-upload-clear-button {
    width: 100%;
  }
}

/* 교재 다운로드 탭 */
.textbook-dl-list { display: flex; flex-direction: column; gap: 12px; margin-top: 10px; }
.textbook-dl-grid { display: flex; flex-direction: column; gap: 10px; }
.textbook-dl-card { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding: 14px 16px; border: 1px solid #e6ebe6; border-radius: 12px; background: #fff; }
.textbook-dl-info { display: flex; flex-direction: column; gap: 4px; min-width: 220px; }
.textbook-dl-info strong { font-size: 15px; color: #1f3d30; }
.textbook-dl-info .pill { align-self: flex-start; }
.textbook-dl-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.textbook-dl-upload { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 16px; padding: 14px 16px; border: 1px dashed #c8d3cc; border-radius: 12px; background: #f7faf8; }
.textbook-dl-upload input[type="text"] { flex: 1 1 200px; padding: 8px 10px; border: 1px solid #d5ddd7; border-radius: 8px; font-size: 14px; }
.textbook-dl-hint { flex-basis: 100%; margin: 4px 0 0; font-size: 12px; color: #6b7c72; }
.auto-backup-box { margin-top: 12px; border-top: 1px solid #e5e9ef; padding-top: 10px; }
.auto-backup-box h3 { font-size: 15px; margin: 0; }
.backup-list { display: flex; flex-direction: column; gap: 5px; max-height: 300px; overflow-y: auto; margin-top: 8px; }
.backup-list.empty { color: #8a94a6; font-size: 13px; padding: 6px 0; }
.backup-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 6px 10px; background: #f6f8fb; border: 1px solid #e9edf3; border-radius: 9px; font-size: 13px; }
.backup-row span { color: #36404f; }
.backup-row button { padding: 4px 11px; font-size: 12px; white-space: nowrap; }

/* ── 조교 시간표 ── */
.ta-sched-weeks { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.ta-week-pill { padding: 6px 12px; border: 1px solid #d7e3db; background: #fff; border-radius: 999px; font-size: 13px; cursor: pointer; color: #36404f; }
.ta-week-pill.active { background: #1f6b4e; border-color: #1f6b4e; color: #fff; font-weight: 700; }
.ta-week-pill.add { border-style: dashed; color: #1f6b4e; }
/* ★fix206: 주 월요일 날짜 입력 */
.ta-week-date { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; color: #51635a; padding: 0 4px; }
.ta-week-date input { border: 1px solid #d7e3db; border-radius: 8px; padding: 5px 8px; font-size: 12.5px; color: #1f3a2e; }
.ta-sched-controls { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.ta-sched-scroll { overflow: auto; max-height: 70vh; border: 1px solid #e3e9e5; border-radius: 10px; }
.ta-sched-table { border-collapse: collapse; width: 100%; font-size: 12.5px; }
.ta-sched-table th, .ta-sched-table td { border: 1px solid #e6ece8; text-align: center; padding: 0; }
.ta-sched-table thead th { position: sticky; top: 0; z-index: 2; background: #eef4f0; color: #1f3a2e; font-weight: 700; padding: 5px 4px; }
.ta-sched-table .ta-th-day { background: #e3efe8; }
/* ★fix203: 요일별 경계선 또렷하게 — 각 요일의 첫 칸(.ta-day-start)과 요일 헤더에 굵은 초록 세로선. 같은 요일 안 기기 구분은 가는 기본선. */
.ta-sched-table .ta-th-day,
.ta-sched-table .ta-day-start { border-left: 2.5px solid #2f6b4e; }
.ta-sched-table .ta-th-dev { font-weight: 500; font-size: 11px; color: #51635a; }
/* ★fix206: 요일 헤더 아래 월/일 날짜 */
.ta-sched-table .ta-th-date { display: block; font-size: 10.5px; font-weight: 600; color: #51635a; margin-top: 1px; }
/* ★fix221: 시간 열을 모든 요일 앞에 반복 표시 → left-sticky 제거(여러 열이 left:0에 겹치는 것 방지). 헤더 행의 top-sticky는 thead 규칙으로 유지. */
.ta-th-time, .ta-th-time-row { background: #f3f6f4; color: #51635a; font-weight: 600; padding: 4px 8px; white-space: nowrap; text-align: center; font-size: 11.5px; }
.ta-cell { min-width: 64px; height: 30px; }
.ta-cell.filled { background: #f4f9f6; color: #1f3a2e; font-weight: 600; }
.ta-cell.mine { background: #c8ecd6; color: #134a32; font-weight: 700; box-shadow: inset 0 0 0 2px #1f6b4e; }
.ta-cell-select { width: 100%; min-width: 64px; border: none; background: transparent; font-size: 12.5px; padding: 4px 2px; text-align: center; text-align-last: center; cursor: pointer; color: inherit; -webkit-appearance: none; appearance: none; }
.ta-cell-select:focus { outline: 2px solid #1f6b4e; outline-offset: -2px; }
.ta-sched-memo { margin-top: 12px; }
.ta-sched-memo label { display: block; font-size: 12px; color: #51635a; margin-bottom: 4px; }
.ta-sched-memo textarea { width: 100%; border: 1px solid #d7e3db; border-radius: 8px; padding: 8px; font-size: 13px; resize: vertical; box-sizing: border-box; }
.ta-sched-names { margin-top: 14px; padding: 12px; background: #f7faf8; border: 1px solid #e6ece8; border-radius: 10px; }
.ta-name-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.ta-name-chip { display: inline-flex; align-items: center; gap: 5px; padding: 3px 6px 3px 10px; background: #fff; border: 1px solid #d7e3db; border-radius: 999px; font-size: 12.5px; }
.ta-name-x { border: none; background: #e7efe9; color: #51635a; border-radius: 50%; width: 18px; height: 18px; line-height: 1; cursor: pointer; font-size: 12px; }
.ta-name-add { display: flex; gap: 6px; }
.ta-name-add input { flex: 1; border: 1px solid #d7e3db; border-radius: 8px; padding: 6px 10px; font-size: 13px; }
.ta-sched-hint { font-size: 11.5px; margin-top: 8px; }
.ta-sched-mine-hint { font-size: 12px; margin-top: 8px; }
.ta-sched-empty { padding: 24px; text-align: center; }
.ta-sched-empty-actions { display: flex; gap: 8px; justify-content: center; margin-top: 10px; flex-wrap: wrap; }

/* ── 월 수강료 납부현황 그리드 ── */
.tu-summary { background: #f3f8f5; border: 1px solid #dcebe2; border-radius: 10px; padding: 10px 14px; font-size: 13.5px; color: #25402f; margin-bottom: 12px; }
.tu-summary strong { font-weight: 700; }
.tu-summary .tu-unpaid { color: #c0392b; }
.tu-scroll { overflow: auto; max-height: 70vh; border: 1px solid #e3e9e5; border-radius: 10px; }
.tu-table { border-collapse: collapse; width: 100%; font-size: 12.5px; }
.tu-table th, .tu-table td { border: 1px solid #e6ece8; text-align: center; padding: 0; }
.tu-table thead th { position: sticky; top: 0; z-index: 2; background: #eef4f0; color: #1f3a2e; font-weight: 700; padding: 6px 6px; white-space: nowrap; }
.tu-table thead th.tu-th-mon.cur { background: #bfe3cc; }
.tu-th-name, .tu-th-name-row { position: sticky; left: 0; z-index: 1; background: #f3f6f4; color: #1f3a2e; font-weight: 600; padding: 5px 10px; text-align: left; white-space: nowrap; }
.tu-table thead .tu-th-name { z-index: 3; }
.tu-meta { color: #51635a; font-size: 11.5px; padding: 4px 8px; white-space: nowrap; }
.tu-cell { min-width: 42px; height: 30px; }
.tu-cell.cur { background: #e3f2e8; box-shadow: inset 2px 0 0 #1f6b4e; }
.tu-cell.paid { background: #cdeed8; }
.tu-cell.paid.cur { background: #b6e7c6; }
.tu-scroll::-webkit-scrollbar { height: 11px; width: 11px; }
.tu-scroll::-webkit-scrollbar-thumb { background: #b8c7be; border-radius: 6px; border: 2px solid #f0f4f1; }
.tu-scroll::-webkit-scrollbar-track { background: #f0f4f1; border-radius: 6px; }
.oneoff-table tbody tr:hover td, .cr-table tbody tr:hover td { background: #f3f8f4; }
.tu-toggle { width: 100%; min-width: 42px; height: 30px; border: none; background: transparent; cursor: pointer; font-size: 15px; color: #1f6b4e; font-weight: 700; }
.tu-toggle:hover { background: rgba(31,107,78,0.08); }
.tu-hint { font-size: 11.5px; margin-top: 8px; }
.tu-controls { margin-bottom: 10px; }
.tu-revenue { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 8px; margin-bottom: 12px; }
.tu-rev-item { border: 1px solid var(--border, #e4e7ec); border-radius: 10px; padding: 10px 12px; display: flex; flex-direction: column; gap: 4px; background: var(--card-bg, #fff); }
.tu-rev-item span { font-size: 12px; color: var(--muted, #667085); }
.tu-rev-item strong { font-size: 17px; }
.tu-rev-paid { color: #067647; }
.tu-rev-unpaid { color: #b42318; }
.tu-student { display: flex; align-items: center; gap: 6px; }
.tu-name { font-weight: 600; }
.tu-grade { font-size: 10.5px; color: var(--muted, #667085); background: var(--chip-bg, #f2f4f7); border-radius: 999px; padding: 1px 7px; white-space: nowrap; }
.tu-payer { font-size: 11px; color: var(--muted, #667085); margin-top: 3px; display: flex; align-items: center; gap: 5px; flex-wrap: wrap; }
.tu-payer-btn { font-size: 11px; border: 1px dashed var(--border, #d0d5dd); border-radius: 6px; padding: 1px 6px; background: transparent; cursor: pointer; color: inherit; }
.tu-deact { font-size: 10.5px; color: #b42318; border: 1px solid #fda29b; border-radius: 6px; padding: 1px 6px; background: transparent; cursor: pointer; }
.tu-deact:hover { background: #fee4e2; }
.oneoff-wrap { margin-top: 18px; border-top: 1px solid var(--border, #eaecf0); padding-top: 14px; }
.oneoff-title { font-size: 14px; margin: 0 0 8px; }
.oneoff-summary { font-size: 13px; margin-bottom: 8px; }
.oneoff-table, .cr-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.oneoff-table th, .oneoff-table td, .cr-table th, .cr-table td { border: 1px solid var(--border, #eaecf0); padding: 6px 8px; text-align: left; white-space: nowrap; }
.oneoff-table thead th, .cr-table thead th { background: var(--chip-bg, #f2f4f7); font-size: 12px; }
.oneoff-paid, .cr-issued { background: rgba(6,118,71,0.06); }
.oneoff-toggle, .cr-toggle { font-size: 12px; border: 1px solid var(--border, #d0d5dd); border-radius: 6px; padding: 2px 8px; background: transparent; cursor: pointer; }
.oneoff-toggle.on, .cr-toggle.on { background: #067647; color: #fff; border-color: #067647; }
.oneoff-del { font-size: 11px; color: #b42318; border: 1px solid #fda29b; border-radius: 6px; padding: 2px 7px; background: transparent; cursor: pointer; }
.oneoff-add { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; align-items: center; }
.oneoff-add select, .oneoff-add input { padding: 5px 8px; border: 1px solid var(--border, #d0d5dd); border-radius: 7px; font-size: 13px; }
.cr-controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 10px; }
.cr-summary { font-size: 13px; }
.cr-no { width: 130px; padding: 4px 7px; border: 1px solid var(--border, #d0d5dd); border-radius: 6px; font-size: 12px; }
.extra-cat-chip { display: inline-block; font-size: 11px; font-weight: 700; color: #1849a9; background: #eef4ff; border-radius: 999px; padding: 2px 9px; white-space: nowrap; }
.extra-filter { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 8px; }
.extra-filter-btn { padding: 4px 12px; border-radius: 999px; border: 1px solid var(--border, #d0d5dd); background: #fff; cursor: pointer; font-size: 12px; font-weight: 600; }
.extra-filter-btn:hover { border-color: #1f6b4e; color: #1f6b4e; }
.extra-filter-btn.active { background: var(--accent, #1f6b4e); color: #fff; border-color: var(--accent, #1f6b4e); box-shadow: 0 0 0 3px rgba(31, 107, 78, 0.18); }
.cr-cell { white-space: nowrap; }
.cr-cell .cr-no { width: 88px; margin-right: 4px; }
.cr-off { color: var(--muted, #98a2b3); text-align: center; }
.cr-target { font-size: 11.5px; border: 1px solid var(--border, #d0d5dd); border-radius: 6px; padding: 2px 9px; background: transparent; cursor: pointer; color: var(--muted, #667085); white-space: nowrap; }
.cr-target.on { background: #eef4ff; color: #1849a9; border-color: #b2ccff; font-weight: 600; }
.pay-pill.paid { background: #067647; color: #fff; }
.pay-pill.unpaid { background: #fef0c7; color: #b54708; }
.pay-pill.overdue { background: #d92d20; color: #fff; font-weight: 700; }
.pay-pill.due { background: #eff8ff; color: #1849a9; }
.sales-month { font-size: 14px; font-weight: 600; margin-bottom: 12px; }
.sales-block { margin-bottom: 16px; }
.sales-h3 { font-size: 14px; margin: 0 0 8px; }
.pr-wrap { display: flex; flex-direction: column; gap: 12px; }
.pr-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.pr-count { font-size: 13px; }
.pr-winbtns { display: inline-flex; gap: 4px; }
.pr-winbtn { padding: 4px 10px; border-radius: 999px; border: 1px solid var(--border, #d0d5dd); background: transparent; cursor: pointer; font-size: 12px; }
.pr-winbtn.active { background: var(--accent, #1f6b4e); color: #fff; border-color: var(--accent, #1f6b4e); }
.pr-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 10px; }
.pr-card { border: 1px solid var(--border, #e4e7ec); border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 8px; background: var(--card-bg, #fff); }
.pr-card header { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.pr-card header strong { font-size: 15px; }
.pr-dday { font-size: 11px; font-weight: 700; color: #b42318; background: #fee4e2; padding: 2px 7px; border-radius: 999px; }
.pr-date { font-size: 12px; color: var(--muted, #667085); }
.pr-amt { font-size: 12px; margin-left: auto; font-weight: 600; }
.pr-phone { font-size: 13px; color: var(--muted, #475467); font-variant-numeric: tabular-nums; }
.pr-msg { width: 100%; resize: vertical; font-size: 12.5px; line-height: 1.5; border: 1px solid var(--border, #e4e7ec); border-radius: 8px; padding: 8px; background: var(--input-bg, #f9fafb); box-sizing: border-box; }
.pr-card footer { display: flex; gap: 6px; flex-wrap: wrap; }
.pr-tpl { border-top: 1px solid var(--border, #eaecf0); padding-top: 10px; }
.pr-tpl summary { cursor: pointer; font-size: 13px; }
.pr-tpl-input { width: 100%; resize: vertical; font-size: 12.5px; line-height: 1.5; border: 1px solid var(--border, #e4e7ec); border-radius: 8px; padding: 8px; box-sizing: border-box; margin-top: 6px; }
.pr-tpl-actions { display: flex; gap: 6px; margin-top: 6px; }
.textbook-dl-group { margin-bottom: 18px; }
/* ★fix219: 커리큘럼별 접기/펼치기(details/summary) */
.textbook-dl-group-title { font-size: 14px; margin: 0 0 8px; padding-bottom: 4px; border-bottom: 2px solid var(--accent, #1f6b4e); display: flex; align-items: center; gap: 6px; cursor: pointer; user-select: none; list-style: none; }
.textbook-dl-group-title::-webkit-details-marker { display: none; }
.textbook-dl-group-title::before { content: "▸"; font-size: 11px; color: var(--accent, #1f6b4e); transition: transform 0.15s ease; flex-shrink: 0; }
details.textbook-dl-group[open] > .textbook-dl-group-title::before { transform: rotate(90deg); }
.textbook-dl-group-title:hover { color: var(--accent, #1f6b4e); }
.textbook-dl-toolbar { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.textbook-dl-group-count { font-size: 11px; font-weight: 600; color: var(--muted, #667085); background: var(--chip-bg, #f2f4f7); border-radius: 999px; padding: 1px 8px; }
.textbook-dl-rev { background: #eef4ff; color: #1849a9; }

/* ===== 모바일 관리자 화면 UI 개선 (≤560px 전용 · 파일 끝에 둬서 컴포넌트 기본 규칙을 확실히 override) ===== */
@media (max-width: 560px) {
  .panel { padding: 16px; }
  .panel-heading { flex-wrap: wrap; gap: 6px 10px; }

  /* 터치 타깃 확대 */
  .primary-button,
  .secondary-button,
  .ghost-button,
  .status-button,
  .test-load-button { min-height: 44px; }
  select,
  textarea,
  input:not([type="checkbox"]):not([type="radio"]):not([type="file"]) { min-height: 44px; }

  /* 데이터 표(수강료·영수증·매출) 가독성 + 가로스크롤 관성 */
  .tu-scroll { -webkit-overflow-scrolling: touch; }
  .tu-table { font-size: 13px; }
  .tu-table thead th { padding: 7px; }
  .tu-cell { height: 38px; }
  .oneoff-table, .cr-table { font-size: 13px; }
  .oneoff-table th, .oneoff-table td,
  .cr-table th, .cr-table td { padding: 8px; }
  .extra-filter-btn { min-height: 32px; }

  /* 칩·메타·액션 줄바꿈 자연스럽게 */
  .student-meta,
  .heading-actions,
  .data-actions,
  .submission-card header { flex-wrap: wrap; }
}

/* ── 학부모 보고서 탭 ── */
.pr-filter-bar { display: flex; flex-wrap: wrap; gap: 10px 12px; align-items: flex-end; margin: 12px 0 14px; padding: 10px 12px; border: 1px solid var(--border, #e2e2e6); border-radius: 8px; background: var(--card-bg, #fff); }
.pr-filter-quick { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.pr-filter-quick button { font-size: 12px; padding: 5px 10px; }
.pr-filter-quick button.active { border-color: #246b4f; color: #134a32; background: #eef7f1; font-weight: 700; }
.pr-filter-bar input[type="date"],
.pr-filter-bar input[type="search"],
.pr-filter-bar select { min-height: 34px; border: 1px solid var(--border, #d8d8dc); border-radius: 8px; padding: 6px 8px; background: #fff; }
.pr-filter-bar input[type="search"] { width: 120px; }
#prFilterSummary { align-self: center; font-size: 12px; }
.pr-reminders { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.pr-reminder-card { border: 1px solid var(--border, #e2e2e6); border-radius: 10px; padding: 8px 12px; background: var(--card-bg, #fff); font-size: 13px; display: flex; flex-direction: column; gap: 2px; min-width: 220px; max-width: 280px; }
.pr-reminder-card.due-soon { border-color: #e0a000; background: #fff8e6; }
.pr-reminder-card.due-after { border-color: #3b82f6; background: #eef4ff; }
.pr-reminder-card.overdue { border-color: #d14a3b; background: #fff1ef; }
.pr-reminder-card.missing { border-style: dashed; background: #f8fafc; }
.pr-reminder-card .pr-rm-name { font-weight: 600; }
.pr-reminder-card .pr-rm-trigger { font-size: 12px; }
.pr-reminder-card .pr-rm-sub { font-size: 11px; color: var(--muted, #888); }
.pr-reminder-card button { margin-top: 4px; font-size: 12px; padding: 3px 8px; }
.pr-gen-box { display: flex; flex-direction: column; gap: 10px; }
.pr-gen-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.pr-field { display: flex; flex-direction: column; gap: 4px; font-size: 13px; font-weight: 600; }
.pr-field select { min-width: 160px; padding: 6px 8px; }
.pr-period input { width: 70px; padding: 6px 8px; }
.pr-textarea { width: 100%; box-sizing: border-box; font-family: inherit; font-size: 14px; line-height: 1.5; padding: 10px; border-radius: 8px; border: 1px solid var(--border, #d8d8dc); }
.pr-result { white-space: pre-wrap; }
.pr-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.pr-history-title { margin-top: 20px; }
.pr-history { display: flex; flex-direction: column; gap: 8px; }
.pr-history-card { border: 1px solid var(--border, #e2e2e6); border-radius: 10px; padding: 10px 12px; background: var(--card-bg, #fff); }
.pr-history-card header { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; justify-content: space-between; }
.pr-history-card .pr-hc-name { font-weight: 600; }
.pr-history-card .pr-hc-meta { font-size: 12px; color: var(--muted, #888); }
.pr-history-card .pr-hc-preview { font-size: 13px; color: var(--muted, #777); margin-top: 4px; }
.pr-history-card .pr-hc-actions { display: flex; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.pr-history-card .pr-hc-actions button { font-size: 12px; padding: 3px 10px; }

/* ── 시간표 브러시/드래그 칠하기 ── */
.ta-brush-bar { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin: 8px 0; padding: 8px 10px; background: var(--card-bg, #f6f7f9); border: 1px solid var(--border, #e2e2e6); border-radius: 10px; }
.ta-brush-label { font-weight: 700; font-size: 13px; }
.ta-brush { border: 1px solid var(--border, #d8d8dc); background: #fff; border-radius: 14px; padding: 4px 12px; font-size: 13px; cursor: pointer; line-height: 1.2; }
.ta-brush:hover { border-color: #246b4f; }
/* ★fix206: 브러시는 조교색(인라인 background)을 항상 보여주고, 선택된 것은 진한 테두리+링+굵게로 표시(green bg로 덮지 않음). */
.ta-brush.active { color: #134a32; border-color: #134a32; font-weight: 800; box-shadow: 0 0 0 2px rgba(19,74,50,0.3); }
.ta-brush.erase.active { background: #b04632; color: #fff; border-color: #8a2f1f; box-shadow: 0 0 0 2px rgba(176,70,50,0.3); }
.ta-brush-hint { font-size: 11px; color: var(--muted, #888); margin-left: auto; }
.ta-cell.ta-paint { cursor: pointer; user-select: none; min-width: 54px; height: 30px; text-align: center; vertical-align: middle; font-size: 13px; }
.ta-cell.ta-paint:hover { outline: 2px solid #246b4f; outline-offset: -2px; }
.ta-cell.ta-paint.filled { background: #eef5f0; font-weight: 600; }
.ta-cell.ta-paint.mine { background: #d6efdd; }