.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

h1 {
  font-size: clamp(2rem, 3vw, 3rem);
  font-family: var(--font-serif);
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--color-muted);
  margin-top: var(--space-2);
  max-width: 520px;
}

.header-pill {
  background: rgba(15, 139, 141, 0.12);
  color: var(--accent-teal);
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.85rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-pill-cta {
  background: var(--accent-blue);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-sm);
}

.header-pill-cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}


.subject-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}

.subject-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.subject-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.subject-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(27, 110, 243, 0.12);
  display: grid;
  place-items: center;
  color: var(--accent-blue);
}

.subject-icon svg {
  width: 26px;
  height: 26px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
}

.subject-body h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-1);
}

.subject-topics {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-4);
}

.subject-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  color: var(--accent-blue);
}

.arrow {
  font-size: 1.1rem;
}

.back-link {
  font-weight: 600;
  color: var(--accent-blue);
}

.brand-mini {
  font-weight: 600;
  color: var(--color-muted);
}

.sidebar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: var(--space-4);
}

.sidebar-card h2 {
  font-size: 1.1rem;
}

.year-list {
  display: grid;
  gap: var(--space-2);
}

.chip {
  width: 100%;
  text-align: left;
  border-radius: 999px;
  padding: 8px 16px;
  border: 1px solid transparent;
  background: rgba(27, 110, 243, 0.08);
  color: var(--accent-blue);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.chip.active,
.chip:hover {
  background: var(--accent-blue);
  color: #ffffff;
}

.search {
  display: grid;
  gap: var(--space-2);
  min-width: 220px;
}

.search-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
  color: var(--color-muted);
}

.search input {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  background: #fdfdfd;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(27, 110, 243, 0.18);
}

.doc-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  background: var(--color-card);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: var(--space-3);
}

.doc-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}

.doc-title {
  font-size: 1.05rem;
  font-weight: 600;
}

.doc-meta {
  color: var(--color-muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: 0.85rem;
  margin-top: var(--space-1);
}

.meta-chip {
  background: rgba(244, 196, 48, 0.2);
  color: #8a5c00;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  padding: 2px 10px;
  border-radius: 999px;
  background: #eef2ff;
  font-size: 0.75rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.btn {
  border-radius: 999px;
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  background: transparent;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn.primary {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: transparent;
}

.btn.ghost:hover,
.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn.disabled {
  cursor: not-allowed;
  opacity: 0.6;
  box-shadow: none;
  pointer-events: none;
}

.empty-state {
  text-align: center;
  padding: var(--space-7) var(--space-4);
  color: var(--color-muted);
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

.modal.open {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
}

.modal-content {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  max-width: 520px;
  width: 100%;
  box-shadow: var(--shadow-md);
  display: grid;
  gap: var(--space-3);
  z-index: 1;
}

.modal-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  border: none;
  background: transparent;
  font-weight: 600;
  cursor: pointer;
}

.modal-meta {
  display: grid;
  gap: var(--space-2);
  font-size: 0.9rem;
  color: var(--color-muted);
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.modal-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
  flex-wrap: wrap;
}

.admin-panel {
  display: grid;
  gap: var(--space-5);
}

.admin-forms {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}

.admin-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: var(--space-4);
}

.auth-card {
  max-width: 420px;
  width: 100%;
  margin: 0 auto;
}

.auth-card .btn {
  width: 100%;
  justify-content: center;
}

.admin-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.admin-form {
  display: grid;
  gap: var(--space-3);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
}

.form-field {
  display: grid;
  gap: var(--space-2);
  font-weight: 600;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  background: #fdfdfd;
  font-weight: 400;
  color: var(--color-ink);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(27, 110, 243, 0.18);
  outline: none;
}

.form-status {
  min-height: 1.2em;
  color: var(--color-muted);
  font-size: 0.85rem;
}

@media (max-width: 1024px) {
  .subject-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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