*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }

/* ── Layout ─────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

section { padding: 96px 0; }

/* ── Section labels ──────────────────────────────────────── */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  border-radius: 100px;
  padding: 5px 14px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--text-1);
  line-height: 1.18;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-2);
  line-height: 1.75;
  max-width: 540px;
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin: 0 auto; }

/* ── Scroll reveal ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ── Utilities ───────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mono { font-family: var(--font-mono); }

/* Status badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-blue    { background: #dbeafe; color: #1d4ed8; }
.badge-green   { background: #dcfce7; color: #15803d; }
.badge-yellow  { background: #fef9c3; color: #92400e; }
.badge-red     { background: #fee2e2; color: #b91c1c; }
.badge-gray    { background: var(--surface-2); color: var(--text-2); }
.badge-purple  { background: #ede9fe; color: #6d28d9; }

[data-theme="dark"] .badge-blue   { background: rgba(29,78,216,0.2); color: #60a5fa; }
[data-theme="dark"] .badge-green  { background: rgba(21,128,61,0.2); color: #4ade80; }
[data-theme="dark"] .badge-yellow { background: rgba(146,64,14,0.2); color: #fbbf24; }
[data-theme="dark"] .badge-red    { background: rgba(185,28,28,0.2); color: #f87171; }
[data-theme="dark"] .badge-purple { background: rgba(109,40,217,0.2); color: #a78bfa; }