/* ============================================================
   GNM Vault — dark theme
   Palette: deep teal-charcoal ground, warm amber "reading-lamp"
   accent, muted sage for secondary structure.
   Type: Fraunces (display/serif) + IBM Plex Sans (body/UI)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@500&display=swap');

:root {
  --bg:        #0e1613;
  --bg-raised: #141f1b;
  --surface:   #182722;
  --border:    #26362f;
  --border-soft: #1e2b26;

  --text:       #e9ede9;
  --text-muted: #8fa396;
  --text-dim:   #5d6e65;

  --amber:      #d4a24c;
  --amber-soft: #ecc98a;
  --sage:       #4c8c7d;
  --sage-soft:  #6fae9f;
  --danger:     #c0654f;

  --radius: 3px;
  --serif: 'Fraunces', Georgia, serif;
  --sans:  'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --mono:  'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 900px 500px at 15% -10%, rgba(212,162,76,0.06), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 0%, rgba(76,140,125,0.07), transparent 55%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

::selection { background: rgba(212,162,76,0.3); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 600; margin: 0; color: var(--text); }

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* ---------------- Site header ---------------- */

.site-header {
  border-bottom: 1px solid var(--border-soft);
  padding: 28px 24px 26px;
  margin-bottom: 44px;
}

.site-header__inner {
  max-width: 960px;
  margin: 0 auto;
}

.site-header__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: nowrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  min-width: 0;
}

.brand__mark {
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--amber-soft);
  white-space: nowrap;
}

.brand__mark span { color: var(--sage-soft); }

.brand__tagline {
  display: block;
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 10px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.9rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.header-nav a:hover { color: var(--amber-soft); }

/* ---------------- Admin hamburger nav ---------------- */

.admin-nav { position: relative; }

.admin-nav summary {
  list-style: none;
}

.admin-nav summary::-webkit-details-marker { display: none; }
.admin-nav summary::marker { content: ''; }

.hamburger-btn {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.hamburger-btn span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-muted);
  border-radius: 2px;
  transition: background 0.15s ease;
}

.admin-nav:hover .hamburger-btn,
.admin-nav[open] .hamburger-btn { border-color: var(--amber); }
.admin-nav:hover .hamburger-btn span,
.admin-nav[open] .hamburger-btn span { background: var(--amber-soft); }

.admin-nav__menu {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 210px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  box-shadow: 0 16px 32px rgba(0,0,0,0.4);
  z-index: 30;
}

.admin-nav__menu a {
  padding: 10px 12px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.admin-nav__menu a:hover { background: var(--bg-raised); color: var(--amber-soft); }
.admin-nav__menu a:last-child:hover { color: var(--danger); }

/* ---------------- Breadcrumb ---------------- */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 28px;
}

.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--amber-soft); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--sage-soft); }

/* ---------------- Page intro ---------------- */

.page-intro { margin-bottom: 36px; }

.page-intro h1 {
  font-size: 1.9rem;
  margin-bottom: 8px;
}

.page-intro p {
  color: var(--text-muted);
  max-width: 60ch;
  margin: 0;
}

/* ---------------- Year selection panels (index) ---------------- */

.year-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.year-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--sage);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.year-card:hover {
  border-left-color: var(--amber);
  background: var(--bg-raised);
  transform: translateY(-2px);
}

.year-card__eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.year-card h2 {
  font-size: 1.4rem;
  margin: 6px 0 12px;
}

.year-card__list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.year-card__list li {
  padding: 3px 0;
  border-bottom: 1px dashed var(--border-soft);
}
.year-card__list li:last-child { border-bottom: none; }

.year-card__cta {
  display: inline-block;
  color: var(--amber-soft);
  font-size: 0.88rem;
  font-weight: 500;
}

.year-card__cta::after { content: ' \2192'; }

/* ---------------- Subject list ---------------- */

.subject-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.subject-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--sage);
  border-radius: var(--radius);
  padding: 18px 22px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.subject-row:hover {
  border-left-color: var(--amber);
  background: var(--bg-raised);
}

.subject-row__name {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 500;
}

.subject-row__meta {
  color: var(--text-dim);
  font-size: 0.82rem;
  font-family: var(--mono);
}

.subject-row__go { color: var(--amber-soft); font-size: 0.85rem; white-space: nowrap; }
.subject-row__go::after { content: ' \2192'; }

.subject-row--locked {
  border-left-color: var(--border);
  opacity: 0.7;
  cursor: default;
}

.subject-row--locked:hover { border-left-color: var(--border); background: var(--surface); }

.subject-row__lock {
  color: var(--text-dim);
  font-size: 0.82rem;
  white-space: nowrap;
  font-family: var(--mono);
}

/* ---------------- Subscription manager (admin) ---------------- */

.subscription-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-bottom: 8px;
}

.subscription-check {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
  margin-bottom: 0;
}

.subscription-check:has(input:checked) {
  border-color: var(--sage);
  background: rgba(76,140,125,0.08);
}

.subscription-check input[type=checkbox] {
  width: 16px;
  height: 16px;
  accent-color: var(--amber);
  flex-shrink: 0;
}

/* ---------------- Exam-year pills ---------------- */

.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.pill {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 30px;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  min-width: 120px;
  text-align: center;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.pill:hover {
  border-color: var(--amber);
  color: var(--amber-soft);
  background: var(--bg-raised);
}

.pill__count {
  display: block;
  font-family: var(--sans);
  font-size: 0.72rem;
  color: var(--text-dim);
  font-weight: 400;
  margin-top: 6px;
}

/* ---------------- Question list ---------------- */

.qtype-group { margin-bottom: 32px; }

.qtype-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.qtype-heading__label {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--bg);
  background: var(--amber-soft);
  padding: 3px 9px;
  border-radius: 2px;
}

.qtype-heading__count { color: var(--text-dim); font-size: 0.82rem; }

.qa-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
}

.qa-item summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 20px;
  display: flex;
  gap: 14px;
  align-items: baseline;
  font-weight: 500;
}

.qa-item summary::-webkit-details-marker { display: none; }

.qa-item summary::before {
  content: '+';
  font-family: var(--mono);
  color: var(--sage-soft);
  flex-shrink: 0;
  width: 14px;
}

.qa-item[open] summary::before { content: '\2212'; color: var(--amber-soft); }

.qa-item summary .q-num {
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.qa-item__answer {
  padding: 0 20px 20px 48px;
  color: var(--text-muted);
  border-top: 1px dashed var(--border-soft);
  margin-top: -1px;
  padding-top: 14px;
  white-space: pre-line;
}

.qa-item__answer strong { color: var(--sage-soft); font-family: var(--mono); font-size: 0.75rem; display: block; margin-bottom: 6px; }

/* ---------------- Empty state ---------------- */

.empty-state {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  color: var(--text-dim);
}

/* ---------------- Buttons / forms (shared with admin) ---------------- */

.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--amber);
  background: transparent;
  color: var(--amber-soft);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn:hover { background: var(--amber); color: #14201b; }

.btn--ghost { border-color: var(--border); color: var(--text-muted); }
.btn--ghost:hover { background: var(--surface); color: var(--text); }

.btn--danger { border-color: var(--danger); color: var(--danger); }
.btn--danger:hover { background: var(--danger); color: #14201b; }

.btn--sm { padding: 6px 12px; font-size: 0.78rem; }

label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

input[type=text], input[type=tel], input[type=password], input[type=number], select, textarea {
  width: 100%;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 11px 13px;
  font-family: var(--sans);
  font-size: 0.95rem;
  margin-bottom: 18px;
}

textarea { min-height: 100px; resize: vertical; }

input:focus, select:focus, textarea:focus {
  border-color: var(--amber);
  outline: none;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 0.9rem;
  border: 1px solid;
}
.alert--ok { border-color: var(--sage); color: var(--sage-soft); background: rgba(76,140,125,0.08); }
.alert--err { border-color: var(--danger); color: var(--danger); background: rgba(192,101,79,0.08); }

/* ---------------- Admin dashboard hub ---------------- */

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.hub-card {
  position: relative;
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--sage);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.hub-card:hover {
  border-left-color: var(--amber);
  background: var(--bg-raised);
  transform: translateY(-2px);
}

.hub-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: rgba(76,140,125,0.12);
  color: var(--sage-soft);
  margin-bottom: 16px;
}

.hub-card h2 {
  font-size: 1.25rem;
  margin: 0 0 8px;
}

.hub-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin: 0 0 14px;
}

.hub-card__meta {
  display: block;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 14px;
}

.hub-card__cta {
  display: inline-block;
  color: var(--amber-soft);
  font-size: 0.88rem;
  font-weight: 500;
}

.hub-card__cta::after { content: ' \2192'; }

.hub-card--danger { border-left-color: var(--danger); }
.hub-card--danger:hover { border-left-color: var(--danger); }
.hub-card--danger .hub-card__icon { background: rgba(192,101,79,0.12); color: var(--danger); }
.hub-card--danger .hub-card__cta { color: var(--danger); }

/* ---------------- Admin table ---------------- */

.admin-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}

.filter-bar select {
  margin-bottom: 0;
  width: auto;
  min-width: 160px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.admin-table th, .admin-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-soft);
  font-size: 0.88rem;
  vertical-align: top;
}

.admin-table th {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
  background: var(--bg-raised);
}

.admin-table tr:last-child td { border-bottom: none; }

.admin-table .qtext { max-width: 320px; color: var(--text); }
.admin-table .qmeta { color: var(--text-dim); font-family: var(--mono); font-size: 0.78rem; }

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

/* ---------------- Login ---------------- */

.login-shell {
  max-width: 380px;
  margin: 12vh auto 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--amber);
  border-radius: var(--radius);
  padding: 36px 32px;
}

.login-shell h1 {
  font-size: 1.5rem;
  margin-bottom: 6px;
}

.login-shell p.sub {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 0 0 24px;
}

.login-shell__foot {
  text-align: center;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ---------------- Footer ---------------- */

.site-footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 40px 24px 20px;
}

@media (max-width: 640px) {
  .qa-item__answer { padding-left: 20px; }
}