:root {
  --bg: #0b1020;
  --panel: #121a2f;
  --line: #27314e;
  --text: #e8edff;
  --muted: #a9b4d0;
  --accent: #6ea8ff;
  --good: #13c296;
  --bad: #ff6b7a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(160deg, #080d1b 0%, #0f1931 100%);
  color: var(--text);
}

.header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(10, 15, 30, 0.8);
  backdrop-filter: blur(4px);
}

.header h1 {
  margin: 0 0 8px;
  font-size: 28px;
}

.header p {
  margin: 0;
  color: var(--muted);
}

.container {
  padding: 20px 24px 48px;
  display: grid;
  gap: 16px;
}

section {
  background: rgba(18, 26, 47, 0.8);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}

h2, h3 {
  margin: 0 0 12px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

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

.ladder-actions {
  width: 100%;
}

.ladder-actions.compact {
  margin: 8px 0 10px;
}

.inline-select {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid #3f5485;
  background: #131d38;
  color: var(--text);
}

.inline-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid #3f5485;
  background: #131d38;
  color: #dce6ff;
  font-size: 13px;
  cursor: pointer;
}

.inline-check input {
  accent-color: #4a9dff;
}

.secondary-btn {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #3f5485;
  background: #1a274a;
  color: #edf2ff;
  cursor: pointer;
}

.secondary-btn.active-btn {
  border-color: #6ea8ff;
  background: linear-gradient(90deg, #2f7df4, #4a9dff);
  color: #fff;
}

.secondary-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.section-meta {
  color: #9fb1df;
  font-size: 13px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.mini-cards {
  margin-top: 12px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.mini-cards .card p {
  font-size: 18px;
}

.card {
  background: #0f1730;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
}

.card h4 {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.card p {
  margin: 8px 0 0;
  font-size: 22px;
  font-weight: 700;
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 12px;
}

.panel {
  background: #0f1730;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.form-grid input,
.form-grid select,
.form-grid button {
  width: 100%;
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid #314061;
  background: #131d38;
  color: var(--text);
}

.form-grid button {
  grid-column: span 2;
  border: 0;
  background: linear-gradient(90deg, #2f7df4, #4a9dff);
  font-weight: 600;
  cursor: pointer;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 8px;
  text-align: left;
  white-space: nowrap;
  font-size: 13px;
}

th {
  color: #9fb1df;
  font-weight: 600;
  background: #111a35;
}

.empty {
  color: var(--muted);
  text-align: center;
  padding: 16px;
}

.progress {
  width: 120px;
  height: 8px;
  border-radius: 999px;
  border: 1px solid #355088;
  background: #13203c;
  display: inline-block;
  margin-right: 8px;
  vertical-align: middle;
}

.progress span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #19ca9c, #2c8dff);
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  padding: 10px 12px;
  border-radius: 8px;
  color: white;
  opacity: 0;
  transform: translateY(10px);
  transition: all 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.ok {
  background: rgba(20, 155, 104, 0.95);
}

.toast.error {
  background: rgba(210, 61, 83, 0.95);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.user-badge {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid #3b4d78;
  background: #121d39;
  color: #a9b8dc;
  font-size: 12px;
}

.logout-btn {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #3f5485;
  background: #1a274a;
  color: #edf2ff;
  cursor: pointer;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.login-card {
  width: min(420px, 95vw);
  background: rgba(18, 26, 47, 0.92);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}

.login-card h1 {
  margin: 0 0 8px;
  font-size: 24px;
}

.login-card p {
  margin: 0 0 12px;
  color: var(--muted);
}

.login-form {
  display: grid;
  gap: 10px;
}

.login-form label {
  display: grid;
  gap: 5px;
  font-size: 13px;
  color: #b7c4e3;
}

.login-form input {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #314061;
  background: #131d38;
  color: var(--text);
}

.login-form button {
  margin-top: 4px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 0;
  background: linear-gradient(90deg, #2f7df4, #4a9dff);
  font-weight: 600;
  color: white;
  cursor: pointer;
}

.login-error {
  margin-bottom: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  background: rgba(210, 61, 83, 0.2);
  border: 1px solid rgba(210, 61, 83, 0.5);
  color: #ffb6c0;
  font-size: 13px;
}

@media (max-width: 768px) {
  .header-link-btn,
  .header-actions form {
    width: 100%;
  }

  .header-actions .logout-btn {
    width: 100%;
    text-align: center;
  }

  .header {
    padding: 16px;
  }

  .header-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .container {
    padding: 14px 12px 28px;
    gap: 12px;
  }

  section {
    padding: 12px;
  }

  .grid-two {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-grid button {
    grid-column: span 1;
  }

  .section-head {
    align-items: flex-start;
  }

  .section-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .section-actions .inline-select,
  .section-actions .secondary-btn,
  .section-actions .inline-check {
    width: 100%;
  }

  .section-actions .inline-check {
    justify-content: flex-start;
  }

  .section-meta {
    display: block;
    width: 100%;
    font-size: 12px;
  }

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

  .card p {
    font-size: 18px;
  }

  .table-wrap table {
    min-width: 720px;
  }

  th,
  td {
    padding: 6px;
    font-size: 12px;
  }

  .toast {
    left: 12px;
    right: 12px;
    bottom: 12px;
  }
}

@media (max-width: 480px) {
  .header h1 {
    font-size: 22px;
  }

  .cards,
  .mini-cards {
    grid-template-columns: 1fr;
  }
}


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

.notice-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.video-card {
  background: #0f1730;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.video-card h3 {
  margin: 0;
  font-size: 16px;
}

.video-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #0b1020;
  border-radius: 10px;
  overflow: hidden;
}

.video-frame iframe,
.video-frame video {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.video-meta {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}