/* Accessibility-first academic refresh for ayanzadeh.com */
:root {
  --primary-color: #1c4f6b;
  --primary-dark: #163e54;
  --primary-light: #2b6f8f;
  --accent-color: #b4532a;
  --section-title-gradient: linear-gradient(135deg, #1c4f6b 0%, #b4532a 100%);
  --focus-ring: #c46a3a;
  --font-display: "Newsreader", "Source Serif 4", Georgia, serif;
  --font-body: "Atkinson Hyperlegible", ui-sans-serif, system-ui, sans-serif;
}

body {
  font-family: var(--font-body);
  letter-spacing: 0.01em;
}

.hero-title,
.section-title,
.brand-text,
.publication-item h4,
.project-card h3,
.news-card h3,
.featured-award h3,
.data-hero h1,
.pub-page h1 {
  font-family: var(--font-display);
  font-weight: 600;
}

.hero-title {
  font-optical-sizing: auto;
  letter-spacing: -0.03em;
  line-height: 0.95;
}

.section-title::after {
  width: 3.5rem;
  height: 3px;
  border-radius: 999px;
  background: var(--accent-color);
}

.hero {
  background:
    radial-gradient(circle at 82% 12%, rgba(180, 83, 42, 0.16), transparent 26rem),
    radial-gradient(circle at 12% 88%, rgba(28, 79, 107, 0.35), transparent 28rem),
    linear-gradient(148deg, #0a121c 0%, #132536 54%, #0c1824 100%);
}

.ai-text {
  background: linear-gradient(120deg, #f7f1e8 8%, #e8c9b0 55%, #f4f7fb 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.btn-primary.ai-btn {
  background: #b4532a;
  box-shadow: 0 10px 28px rgba(180, 83, 42, 0.28);
}

:where(a, button, input, textarea, select):focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}