/* SCTOOL Admin styles */

:root {
  --teal: #207d7c;
  --teal-dark: #17605f;
  --teal-mid: #3fa9a6;
  --teal-light: #6fd5d1;
  --teal-pale: #d6faf7;
  --teal-soft: #e4f3f2;
  --ink: #071e1d;
  --navy: #0b2a29;
  --text: #152423;
  --muted: #5f7170;
  --line: #e0e9e8;
  --soft: #f3f8f7;
  --white: #fff;
  --danger: #b42318;
  --font: "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Malgun Gothic", sans-serif;
  --font-en: "Barlow Condensed", "Noto Sans KR", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: var(--soft);
  word-break: keep-all;
  overflow-wrap: break-word;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
}

img {
  max-width: 100%;
  display: block;
}

h1, h2, h3, p, dl, dd {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* --------------------------------------------------------------------------
   Shell / sidebar
   -------------------------------------------------------------------------- */

.admin-body {
  background: var(--soft);
}

.admin-shell {
  min-height: 100vh;
}

.admin-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  width: 250px;
  padding: 22px 16px 18px;
  background:
    radial-gradient(400px 260px at 20% 0%, rgba(111, 213, 209, .12) 0%, transparent 70%),
    var(--navy);
  color: #fff;
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 2px 8px 22px;
}

.admin-brand img {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  flex-shrink: 0;
}

.admin-brand span {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.admin-brand strong {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: .02em;
}

.admin-brand small {
  color: var(--teal-light);
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.admin-nav {
  display: grid;
  gap: 4px;
}

.admin-nav a {
  display: block;
  padding: 11px 12px;
  border-radius: 8px;
  color: rgba(255, 255, 255, .68);
  font-size: 14px;
  font-weight: 500;
  transition: background .2s, color .2s;
}

.admin-nav a:hover {
  background: rgba(255, 255, 255, .08);
  color: #fff;
}

.admin-nav a.is-active {
  background: var(--teal);
  color: #fff;
  font-weight: 700;
}

.admin-sidebar__foot {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
  padding: 16px 8px 2px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}

.admin-sidebar__user {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.admin-sidebar__user strong {
  color: #fff;
  font-size: 13.5px;
}

.admin-sidebar__user small {
  color: rgba(255, 255, 255, .5);
  font-size: 11px;
}

.admin-sidebar__logout {
  padding: 0;
  border: 0;
  background: none;
  color: rgba(255, 255, 255, .55);
  font-size: 12px;
  text-align: left;
}

.admin-sidebar__logout:hover {
  color: #fff;
}

.admin-main {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin-left: 250px;
}

.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 17px 32px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.admin-topbar__title h1 {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1.25;
}

.admin-topbar__title p {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12.5px;
}

.admin-topbar__user {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  margin-left: auto;
  line-height: 1.3;
}

.admin-topbar__user span {
  font-size: 13px;
  font-weight: 700;
}

.admin-topbar__user small {
  color: var(--muted);
  font-size: 11px;
}

.admin-content {
  width: 100%;
  max-width: 1200px;
  padding: 28px 32px 48px;
}

.admin-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.admin-sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 45;
  background: rgba(7, 30, 29, .45);
}

.admin-menu-toggle span {
  display: block;
  height: 2px;
  margin: 4px 0;
  background: var(--ink);
}

/* --------------------------------------------------------------------------
   Common
   -------------------------------------------------------------------------- */

.admin-flashes {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.admin-flash {
  padding: 11px 14px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 500;
}

.admin-flash--success {
  background: #e9f8f1;
  border-color: #b9e6d2;
  color: #17603f;
}

.admin-flash--error {
  background: #fff1f0;
  border-color: #f2c4c0;
  color: #8f1d15;
}

.admin-flash--warning {
  background: #fff8e9;
  border-color: #f0d9a8;
  color: #7a5200;
}

.admin-flash--info,
.admin-flash--message {
  background: var(--teal-soft);
  border-color: #c5e6e3;
  color: var(--teal-dark);
}

.admin-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.admin-card--narrow {
  max-width: 780px;
}

.admin-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.admin-card__head--between {
  align-items: center;
}

.admin-card__head h2 {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.025em;
  line-height: 1.35;
}

.admin-card__head p {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12.5px;
}

.admin-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 20px;
}

.admin-page-actions {
  margin-bottom: 14px;
}

.admin-link {
  color: var(--teal-dark);
  font-size: 12.5px;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.admin-link:hover {
  color: var(--teal);
}

.admin-muted {
  color: var(--muted);
  font-size: 12px;
}

.admin-notice {
  margin-top: 18px;
  padding: 12px 14px;
  border-left: 2px solid var(--teal);
  background: var(--soft);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.admin-nowrap {
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.admin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  transition: background .2s, color .2s, border-color .2s;
}

.admin-btn:hover {
  transform: translateY(-1px);
}

.admin-btn--primary {
  background: var(--teal);
  color: #fff;
}

.admin-btn--primary:hover {
  background: var(--teal-dark);
}

.admin-btn--ghost {
  background: #fff;
  border-color: var(--line);
  color: var(--text);
}

.admin-btn--ghost:hover {
  border-color: #b9c8c6;
}

.admin-btn--danger {
  background: #fff;
  border-color: #efc8c5;
  color: var(--danger);
}

.admin-btn--danger:hover {
  background: #fff6f5;
}

.admin-btn--sm {
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 11.5px;
}

.admin-btn--block {
  width: 100%;
}

.admin-link-button {
  padding: 0;
  border: 0;
  background: none;
  color: var(--teal-dark);
  font-size: 12.5px;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.admin-link-button:hover {
  color: var(--teal);
}

/* --------------------------------------------------------------------------
   Badges
   -------------------------------------------------------------------------- */

.admin-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 700;
  line-height: 1.4;
  white-space: nowrap;
}

.admin-badge--active {
  background: #e9f8f1;
  color: #17603f;
}

.admin-badge--inactive {
  background: #f2f4f5;
  color: #64716f;
}

.admin-badge--superadmin {
  background: var(--teal);
  color: #fff;
}

.admin-badge--admin {
  background: var(--teal-soft);
  color: var(--teal-dark);
}

.admin-badge--pending,
.admin-badge--mock {
  background: #fff4e0;
  color: #925800;
}

.admin-badge--mock {
  font-family: var(--font-en);
  letter-spacing: .08em;
}

.admin-badge--me {
  margin-left: 5px;
  background: var(--soft);
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   Stats / dashboard
   -------------------------------------------------------------------------- */

.admin-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}

.admin-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.admin-stat__label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.admin-stat__value {
  font-family: var(--font-en);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--ink);
}

.admin-stat__value--date {
  font-family: var(--font);
  font-size: 17px;
  letter-spacing: -.02em;
  line-height: 1.45;
}

.admin-stat__hint {
  color: var(--muted);
  font-size: 11.5px;
}

.admin-quick-links {
  display: grid;
  gap: 8px;
}

.admin-quick-links--spaced {
  margin-top: 14px;
}

.admin-quick-links a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--soft);
  transition: border-color .2s, background .2s;
}

.admin-quick-links a:hover {
  border-color: var(--teal);
  background: #fff;
}

.admin-quick-links strong {
  font-size: 13.5px;
}

.admin-quick-links span {
  color: var(--muted);
  font-size: 11.5px;
}

/* --------------------------------------------------------------------------
   Tables
   -------------------------------------------------------------------------- */

.admin-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.admin-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.admin-table th {
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--soft);
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 700;
  text-align: left;
  white-space: nowrap;
}

.admin-table td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

.admin-table tbody tr:last-child td {
  border-bottom: 0;
}

.admin-table tbody tr:hover {
  background: #f8fbfa;
}

.admin-table__link {
  color: var(--teal-dark);
  font-weight: 700;
}

.admin-table__link:hover {
  color: var(--teal);
}

.admin-table__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  min-width: 200px;
}

.admin-table__actions-head {
  width: 1%;
}

.admin-table--compact {
  min-width: 0;
}

.admin-inline-form {
  display: inline;
}

.admin-empty-cell {
  padding: 34px 14px !important;
  color: var(--muted);
  text-align: center;
}

/* --------------------------------------------------------------------------
   Filters / pagination
   -------------------------------------------------------------------------- */

.admin-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 10px;
  margin-bottom: 16px;
  padding: 14px;
  border-radius: 10px;
  background: var(--soft);
}

.admin-field--inline {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.admin-field--inline label {
  white-space: nowrap;
}

.admin-field--inline input {
  width: 220px;
}

.admin-field--inline select {
  width: 120px;
}

.admin-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
}

.admin-pagination a {
  color: var(--teal-dark);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */

.admin-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.admin-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.admin-field--full {
  grid-column: 1 / -1;
}

.admin-field label {
  color: #3a4846;
  font-size: 12px;
  font-weight: 700;
}

.admin-field input,
.admin-field select,
.admin-field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--text);
  font: inherit;
  font-size: 13.5px;
  line-height: 1.45;
  transition: border-color .2s, box-shadow .2s;
}

.admin-field textarea {
  resize: vertical;
}

.admin-field input:focus,
.admin-field select:focus,
.admin-field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(32, 125, 124, .12);
}

.admin-field input:disabled {
  background: var(--soft);
  color: var(--muted);
}

.admin-field__error {
  color: var(--danger);
  font-size: 11.5px;
}

.admin-field__help {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.admin-form-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.admin-otp-input {
  letter-spacing: .35em;
  font-size: 22px !important;
  font-weight: 700;
  text-align: center;
}

/* --------------------------------------------------------------------------
   Detail
   -------------------------------------------------------------------------- */

.admin-kv {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.admin-kv > div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}

.admin-kv dt {
  color: var(--muted);
}

.admin-kv dd {
  color: var(--text);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   Auth pages
   -------------------------------------------------------------------------- */

.admin-auth {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 28px 20px;
  background:
    radial-gradient(700px 420px at 80% 12%, rgba(255, 255, 255, .14) 0%, transparent 62%),
    radial-gradient(600px 400px at 4% 94%, rgba(0, 0, 0, .16) 0%, transparent 62%),
    linear-gradient(150deg, #17605f 0%, #207d7c 55%, #2a9491 100%);
}

.admin-auth__card {
  width: min(100%, 420px);
  padding: 34px;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 30px 70px rgba(4, 40, 38, .32);
}

.admin-auth__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
}

.admin-auth__brand img {
  width: 44px;
  height: 44px;
  border-radius: 10px;
}

.admin-auth__brand span {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.admin-auth__brand strong {
  font-size: 21px;
  font-weight: 900;
  letter-spacing: .02em;
}

.admin-auth__brand small {
  color: var(--teal-dark);
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.admin-auth h1 {
  margin-bottom: 8px;
  font-size: 25px;
  font-weight: 900;
  letter-spacing: -.03em;
}

.admin-auth__lead {
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.admin-auth__lead strong {
  color: var(--text);
}

.admin-auth__hint {
  margin-top: 18px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.6;
}

.admin-auth__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
}

.admin-auth__foot {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: #8b9896;
  font-size: 10.5px;
  text-align: center;
}

.admin-auth__card .admin-form {
  gap: 14px;
}

.admin-auth__card .admin-btn--block {
  margin-top: 2px;
}

.admin-error {
  text-align: center;
}

.admin-error__logo {
  width: 48px;
  height: 48px;
  margin: 0 auto 14px;
  border-radius: 10px;
}

.admin-error__code {
  color: var(--teal);
  font-family: var(--font-en);
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
}

.admin-error h1 {
  margin: 8px 0 22px;
  font-size: 20px;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1100px) {
  .admin-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  .admin-sidebar {
    width: 280px;
    transform: translateX(-100%);
    transition: transform .25s ease;
    box-shadow: 20px 0 60px rgba(0, 0, 0, .2);
  }

  .admin-nav-open .admin-sidebar {
    transform: none;
  }

  .admin-nav-open .admin-sidebar-backdrop {
    display: block;
  }

  .admin-main {
    margin-left: 0;
  }

  .admin-menu-toggle {
    display: block;
    flex-shrink: 0;
  }

  .admin-topbar {
    padding: 13px 18px;
  }

  .admin-topbar__user {
    display: none;
  }

  .admin-content {
    padding: 20px 18px 42px;
  }
}

@media (max-width: 720px) {
  .admin-form-grid {
    grid-template-columns: 1fr;
  }

  .admin-card {
    padding: 20px 16px;
  }

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

  .admin-card__head--between {
    align-items: flex-start;
  }

  .admin-filter {
    align-items: stretch;
  }

  .admin-field--inline {
    flex-direction: column;
    align-items: flex-start;
  }

  .admin-field--inline input,
  .admin-field--inline select {
    width: 100%;
  }

  .admin-kv > div {
    grid-template-columns: 90px 1fr;
    gap: 12px;
  }

  .admin-table {
    font-size: 12.5px;
  }

  .admin-table th,
  .admin-table td {
    padding: 10px 10px;
  }

  .admin-auth__card {
    padding: 26px 20px;
  }
}

@media (max-width: 520px) {
  .admin-stat-grid {
    grid-template-columns: 1fr;
  }

  .admin-stat__value {
    font-size: 30px;
  }

  .admin-topbar__title h1 {
    font-size: 19px;
  }

  .admin-topbar__title p {
    font-size: 11.5px;
  }

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