/* ─── AIWEBGRADE.COM — GLOBAL STYLES ─────────────────────────────────────── */

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

:root {
  --bg: #FFFFFF;
  --bg-soft: #F8FAFC;
  --bg-card: #F1F5F9;
  --border: #E2E8F0;
  --text: #0F172A;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --accent: #6366F1;
  --accent-dark: #4F46E5;
  --accent-light: #EEF2FF;
  --green: #22C55E;
  --red: #EF4444;
  --orange: #F97316;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --max-width: 780px;
  --radius: 12px;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ─── TYPOGRAPHY ─────────────────────────────────────────────────────────── */
h1 { font-size: clamp(32px, 5vw, 52px); font-weight: 800; letter-spacing: -2px; line-height: 1.1; color: var(--text); }
h2 { font-size: clamp(22px, 3vw, 32px); font-weight: 700; letter-spacing: -1px; line-height: 1.2; color: var(--text); margin-bottom: 16px; }
h3 { font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
p { color: var(--text-muted); font-size: 16px; line-height: 1.75; margin-bottom: 16px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
strong { color: var(--text); font-weight: 600; }

/* ─── LAYOUT ─────────────────────────────────────────────────────────────── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 64px 0; }
.section-sm { padding: 40px 0; }

/* ─── NAV ────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.nav-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-weight: 800; font-size: 17px; color: var(--text);
  text-decoration: none; display: flex; align-items: center; gap: 8px;
}
.nav-logo span { color: var(--accent); }
.nav-cta {
  background: var(--accent); color: white;
  padding: 8px 18px; border-radius: 8px;
  font-size: 13px; font-weight: 600;
  text-decoration: none; transition: background 0.2s;
}
.nav-cta:hover { background: var(--accent-dark); text-decoration: none; }

/* ─── HERO ───────────────────────────────────────────────────────────────── */
.hero { padding: 72px 0 56px; text-align: center; }
.hero-tag {
  display: inline-block;
  background: var(--accent-light); color: var(--accent);
  font-size: 12px; font-weight: 600; letter-spacing: 1px;
  padding: 4px 12px; border-radius: 100px;
  margin-bottom: 20px; text-transform: uppercase;
}
.hero h1 { margin-bottom: 16px; }
.hero p { max-width: 520px; margin: 0 auto 32px; font-size: 18px; }

/* ─── CTA BLOCKS ─────────────────────────────────────────────────────────── */
.cta-block {
  background: var(--accent-light);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: var(--radius);
  padding: 32px;
  margin: 48px 0;
  text-align: center;
}
.cta-block h3 { font-size: 20px; margin-bottom: 8px; }
.cta-block p { margin-bottom: 20px; font-size: 15px; }

.cta-block-academy {
  background: #FFF7ED;
  border: 1px solid rgba(249,115,22,0.2);
}
.cta-block-academy h3 { color: #C2410C; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 10px;
  font-weight: 700; font-size: 15px;
  text-decoration: none; transition: all 0.2s;
  cursor: pointer; border: none;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-dark); text-decoration: none; transform: translateY(-1px); }
.btn-orange { background: var(--orange); color: white; }
.btn-orange:hover { background: #EA580C; text-decoration: none; transform: translateY(-1px); }
.btn-sm { padding: 8px 18px; font-size: 13px; }

/* ─── CARDS ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

/* ─── CHECKLIST ──────────────────────────────────────────────────────────── */
.checklist { list-style: none; margin: 24px 0; }
.checklist li {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px; color: var(--text-muted);
}
.checklist li:last-child { border-bottom: none; }
.checklist .check { color: var(--green); font-size: 16px; flex-shrink: 0; margin-top: 2px; }
.checklist .cross { color: var(--red); font-size: 16px; flex-shrink: 0; margin-top: 2px; }

/* ─── STATS ──────────────────────────────────────────────────────────────── */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 32px 0; }
.stat { text-align: center; padding: 20px; background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); }
.stat-val { font-size: 32px; font-weight: 800; color: var(--accent); letter-spacing: -1px; display: block; }
.stat-label { font-size: 12px; color: var(--text-light); margin-top: 4px; display: block; line-height: 1.4; }

/* ─── BREADCRUMB ─────────────────────────────────────────────────────────── */
.breadcrumb {
  font-size: 13px; color: var(--text-light);
  padding: 12px 0; font-family: var(--font-mono);
}
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { margin: 0 6px; }

/* ─── RELATED LINKS ──────────────────────────────────────────────────────── */
.related { margin: 48px 0 0; padding-top: 32px; border-top: 1px solid var(--border); }
.related h3 { margin-bottom: 16px; font-size: 16px; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }
.related-link {
  display: block; padding: 12px 16px;
  background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: 8px; font-size: 13px; color: var(--text-muted);
  text-decoration: none; transition: all 0.2s;
}
.related-link:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; background: var(--accent-light); }

/* ─── FOOTER ─────────────────────────────────────────────────────────────── */
.footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 40px 0;
  margin-top: 80px;
  text-align: center;
}
.footer p { font-size: 13px; color: var(--text-light); margin: 0; }
.footer a { color: var(--accent); }

/* ─── PROSE ──────────────────────────────────────────────────────────────── */
.prose h2 { margin-top: 40px; margin-bottom: 12px; }
.prose h3 { margin-top: 28px; }
.prose p { margin-bottom: 16px; }
.prose ul { padding-left: 20px; margin-bottom: 16px; }
.prose ul li { margin-bottom: 8px; color: var(--text-muted); }

/* ─── SCORE BAR ──────────────────────────────────────────────────────────── */
.score-bar { margin: 8px 0; }
.score-bar-label { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 4px; }
.score-bar-track { height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; }
.score-bar-fill { height: 100%; border-radius: 4px; background: var(--accent); transition: width 1s ease; }

/* ─── RESPONSIVE ─────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  h1 { font-size: 28px; letter-spacing: -1px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 40px; }
  .section { padding: 48px 0; }
}

/* ─── GOOGLE FONTS IMPORT ────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');