/* ===========================
   TIPSSE – space-academy.css
   Space Knowledge Academy page
   =========================== */

/* ── Nav override: tighter fit for this page ────────── */
#navbar .nav-links      { gap: 14px; }
#navbar .nav-links a    { font-size: 0.8rem; }

/* ── Hero ──────────────────────────────────────────── */
.sa-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--bg);
  overflow: hidden;
  padding-top: 68px;
}

.sa-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding: 80px 0 80px;
}

.sa-hero-inner h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  background: linear-gradient(135deg, #e8edf5 30%, #4f8ef7 70%, #7b5ef6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 12px 0 24px;
  line-height: 1.15;
}

.sa-hero-sub {
  font-size: 1.08rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 36px;
}

.sa-hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Floating orbs behind hero */
.sa-hero-orb { position: absolute; top: 0; right: 0; width: 55%; height: 100%; z-index: 1; pointer-events: none; }

.sa-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.18;
  animation: saFloat 8s ease-in-out infinite;
}
.sa-orb-1 { width: 420px; height: 420px; background: radial-gradient(circle, #4f8ef7, transparent 70%); top: 10%; right: 5%; animation-delay: 0s; }
.sa-orb-2 { width: 280px; height: 280px; background: radial-gradient(circle, #7b5ef6, transparent 70%); top: 55%; right: 30%; animation-delay: -3s; }
.sa-orb-3 { width: 180px; height: 180px; background: radial-gradient(circle, #10b981, transparent 70%); top: 25%; right: 45%; animation-delay: -5s; }

@keyframes saFloat {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-30px); }
}

/* ── Sections ──────────────────────────────────────── */
.sa-section          { padding: 96px 0; background: var(--bg); }
.sa-section.alt      { background: var(--bg-2); }

/* ── Stat grid ─────────────────────────────────────── */
.sa-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

@media (max-width: 900px) { .sa-stat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .sa-stat-grid { grid-template-columns: 1fr 1fr; } }

.sa-stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.sa-stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-c, var(--accent));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.sa-stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.sa-stat-icon { font-size: 1.8rem; margin-bottom: 8px; }

.sa-stat-num {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--accent-c, var(--accent));
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.sa-stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.4;
}

/* ── Split bar ─────────────────────────────────────── */
.sa-split-wrap { margin-top: 8px; }

.sa-split-bar {
  display: flex;
  height: 48px;
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
}

.sa-split-seg {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  transition: filter var(--transition);
}
.sa-split-seg:hover { filter: brightness(1.15); }

.sa-split-seg.gov { background: linear-gradient(90deg, #4f8ef7, #7b5ef6); color: #fff; }
.sa-split-seg.com { background: linear-gradient(90deg, #10b981, #06b6d4); color: #fff; }

.sa-split-legend {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.sa-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.sa-dot.gov { background: #4f8ef7; }
.sa-dot.com { background: #10b981; }

/* ── Tab toggle ────────────────────────────────────── */
.sa-tab-row {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.sa-tab {
  padding: 10px 24px;
  border-radius: 99px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}
.sa-tab:hover { border-color: var(--accent); color: var(--text); }
.sa-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 20px var(--accent-glow);
}

.sa-panel        { display: block; }
.sa-panel.hidden { display: none; }

/* ── Chart cards & wraps ───────────────────────────── */
.sa-chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}

.sa-chart-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 20px;
}

.sa-chart-wrap  { position: relative; width: 100%; }
.sa-chart-md    { max-height: 340px; }
.sa-chart-donut { max-height: 320px; }

/* ── Two-col layout ────────────────────────────────── */
.sa-two-col {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.sa-two-col.reverse { flex-direction: row-reverse; }

@media (max-width: 800px) {
  .sa-two-col, .sa-two-col.reverse { flex-direction: column; }
}

.sa-nat-panel {
  flex: 1;
  min-width: 260px;
}

/* ── Table ─────────────────────────────────────────── */
.sa-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.sa-table th {
  text-align: left;
  padding: 10px 12px;
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
}
.sa-table td {
  padding: 11px 12px;
  color: var(--text);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  vertical-align: middle;
}
.sa-table tr:last-child td { border-bottom: none; }
.sa-table td.pct     { color: var(--accent); font-weight: 600; }
.sa-table td.flag    { font-size: 1.2rem; }
.sa-table td.country { white-space: nowrap; }

.sa-rank-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 24px; height: 24px; border-radius: 50%;
  font-size: 0.72rem; font-weight: 700;
}
.sa-rank-1 { background: linear-gradient(135deg,#fbbf24,#f59e0b); color: #1a1000; }
.sa-rank-2 { background: linear-gradient(135deg,#94a3b8,#cbd5e1); color: #1a1000; }
.sa-rank-3 { background: linear-gradient(135deg,#cd7c2f,#b45309); color: #fff; }
.sa-rank-n { background: rgba(255,255,255,0.08); color: var(--text-muted); }

/* ── Ethnicity list ────────────────────────────────── */
.sa-eth-list {
  flex: 1.1;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sa-eth-item { display: flex; flex-direction: column; gap: 4px; }

.sa-eth-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.88rem;
}
.sa-eth-name { color: var(--text); font-weight: 500; }
.sa-eth-count { color: var(--text-muted); font-size: 0.82rem; white-space: nowrap; }

.sa-eth-bar-bg {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
}
.sa-eth-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}

/* ── Note box ──────────────────────────────────────── */
.sa-note-box {
  margin-top: 20px;
  padding: 14px 18px;
  background: rgba(79,142,247,0.07);
  border: 1px solid rgba(79,142,247,0.2);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Taiwan section ────────────────────────────────── */
.sa-tw-section {
  background: linear-gradient(180deg, var(--bg-3) 0%, #0f1a2e 100%) !important;
}
.sa-tw-section .section-header.light h2 { color: #fff; }
.sa-tw-section .section-header.light p  { color: rgba(255,255,255,0.6); }

.sa-tw-banner {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 28px 28px;
  margin-bottom: 40px;
}

.sa-tw-banner-flag { font-size: 3rem; flex-shrink: 0; line-height: 1; margin-top: 4px; }

.sa-tw-banner h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.sa-tw-banner p { color: rgba(255,255,255,0.65); font-size: 0.92rem; line-height: 1.75; }

.sa-tw-cards {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr;
  gap: 20px;
  margin-bottom: 32px;
}

@media (max-width: 900px) { .sa-tw-cards { grid-template-columns: 1fr; } }

.sa-tw-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: transform var(--transition), border-color var(--transition);
}
.sa-tw-card:hover { transform: translateY(-4px); border-color: rgba(79,142,247,0.3); }
.sa-tw-card.featured { border-color: rgba(79,142,247,0.35); background: rgba(79,142,247,0.06); }
.sa-tw-card.wide { grid-column: 1 / -1; }

.sa-tw-card-badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.sa-tw-card-badge.primary  { background: rgba(79,142,247,0.2);  color: #4f8ef7; border: 1px solid rgba(79,142,247,0.35); }
.sa-tw-card-badge.secondary{ background: rgba(123,94,246,0.2);  color: #a78bfa; border: 1px solid rgba(123,94,246,0.35); }
.sa-tw-card-badge.flag     { background: rgba(16,185,129,0.15); color: #34d399; border: 1px solid rgba(16,185,129,0.3); }

.sa-tw-card-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.sa-tw-card-name span { font-size: 0.95rem; font-weight: 400; color: var(--text-muted); }

.sa-tw-card-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.sa-tw-card p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.75;
}
.sa-tw-card p strong { color: rgba(255,255,255,0.9); }

.sa-tw-note {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: rgba(245,158,11,0.07);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.sa-tw-note-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.sa-tw-note strong { display: block; color: #fbbf24; font-size: 0.9rem; margin-bottom: 6px; }
.sa-tw-note p { font-size: 0.84rem; color: rgba(255,255,255,0.55); line-height: 1.7; margin: 0; }

/* ── Sources ───────────────────────────────────────── */
.sa-sources-section {
  background: var(--bg-3);
  padding: 48px 0;
}
.sa-sources-section h4 {
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.sa-sources-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.sa-sources-list li::before { content: '↗ '; color: var(--accent); }
.sa-sources-list a {
  color: var(--text-muted);
  font-size: 0.82rem;
  text-decoration: none;
  transition: color var(--transition);
}
.sa-sources-list a:hover { color: var(--accent); }

.sa-src-note {
  font-size: 0.78rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin: 0;
}

/* ── Stars (shared with index/mbse) ─────────────────── */
.sa-hero .stars {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 0;
  pointer-events: none;
}