/* ==========================================================================
   Labs — landing page cho từng dự án mã nguồn mở
   Dùng chung tokens.css + styles.css với portfolio, chỉ thêm phần riêng của
   trang chi tiết. Load sau cả hai file đó.
   ========================================================================== */

.lab-page {
  min-height: 100vh;
  background: var(--bg-main);
  color: var(--text-main);
}

/* ── Thanh trên cùng ─────────────────────────────────────────────────── */
.lab-bar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) 0;
  background: rgba(12, 10, 9, .82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

:root.light-theme .lab-bar { background: rgba(255, 255, 255, .85); }

.lab-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 var(--space-3);
  border-radius: 999px;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-muted);
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}

.lab-back:hover { color: var(--text-main); background: rgba(255, 255, 255, .07); }
:root.light-theme .lab-back:hover { background: rgba(28, 25, 23, .06); }

/* ── Hero ────────────────────────────────────────────────────────────── */
.lab-hero {
  position: relative;
  padding: clamp(56px, 9vw, 112px) 0 clamp(40px, 6vw, 72px);
  overflow: hidden;
}

.lab-hero::before {
  content: '';
  position: absolute;
  inset: -30% 0 auto -10%;
  height: 560px;
  pointer-events: none;
  background: radial-gradient(ellipse at 20% 0%, rgba(249, 115, 22, .22), transparent 62%);
  filter: blur(70px);
}

.lab-hero > * { position: relative; }

.lab-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 850;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--amber);
}

.lab-hero h1 {
  margin-top: var(--space-4);
  font-size: var(--text-5xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: 850;
  text-wrap: balance;
}

.lab-tagline {
  margin-top: var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-muted);
  text-wrap: pretty;
}

/* ── Chip thông tin ──────────────────────────────────────────────────── */
.lab-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.lab-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-card);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--text-muted);
}

.lab-chip b { color: var(--text-main); font-weight: 800; }

.lab-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

/* ── Ảnh xem trước ───────────────────────────────────────────────────── */
.lab-shot {
  margin-top: clamp(32px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: 0 30px 90px rgba(0, 0, 0, .38);
}

.lab-shot img { width: 100%; height: auto; display: block; }

/* ── Nội dung ────────────────────────────────────────────────────────── */
.lab-body { padding: clamp(48px, 7vw, 88px) 0; }

.lab-section + .lab-section { margin-top: clamp(40px, 6vw, 72px); }

.lab-section h2 {
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}

.lab-section p {
  margin-top: var(--space-4);
  max-width: var(--measure);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
  text-wrap: pretty;
}

.lab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.lab-card {
  position: relative;
  padding: var(--space-6);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--bg-surface);
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}

.lab-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 158, 11, .4);
  box-shadow: var(--glow-amber-soft);
}

.lab-card h3 {
  font-size: var(--text-lg);
  font-weight: 800;
  letter-spacing: var(--tracking-tight);
}

.lab-card p {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
}

.lab-card .lab-num {
  display: block;
  margin-bottom: var(--space-3);
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--text-sm);
  font-weight: 850;
  color: var(--primary);
}

/* ── Bảng ────────────────────────────────────────────────────────────── */
.lab-table {
  width: 100%;
  margin-top: var(--space-6);
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.lab-table th,
.lab-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.lab-table th {
  font-weight: 800;
  color: var(--text-main);
  white-space: nowrap;
}

.lab-table td { color: var(--text-muted); line-height: var(--leading-relaxed); }

.lab-table-wrap { overflow-x: auto; }

/* ── Khối kết ────────────────────────────────────────────────────────── */
.lab-cta {
  margin-top: clamp(48px, 7vw, 80px);
  padding: clamp(32px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--bg-surface);
  text-align: center;
}

.lab-cta h2 { font-size: var(--text-2xl); font-weight: 850; text-wrap: balance; }
.lab-cta p { margin: var(--space-3) auto 0; max-width: var(--measure-narrow); color: var(--text-muted); }
.lab-cta .lab-actions { justify-content: center; }

@media (max-width: 719px) {
  .lab-hero h1 { font-size: var(--text-4xl); }
  .lab-cta { border-radius: 24px; }
}