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

:root {
  --navy: #0f2444;
  --navy-mid: #1a3a6b;
  --accent: #1f6fff;
  --accent-light: #e8f0ff;
  --text: #1a2a3a;
  --muted: #5a7090;
  --border: #dde6f0;
  --bg: #f5f8fc;
  --card: #ffffff;
  --research: #1f6fff;
  --legal: #7c3aed;
  --policy: #0891b2;
  --treatment: #059669;
  --community: #d97706;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Georgia, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
header {
  background: var(--navy);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.site-brand { display: flex; flex-direction: column; gap: 0.15rem; }

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: white;
  letter-spacing: -0.02em;
}

.tagline {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }

nav a {
  color: rgba(255,255,255,0.75);
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.15s;
}

nav a:hover, nav a.active { color: white; }

/* Main layout */
main { padding: 2.5rem 0 4rem; }

.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border);
}

.page-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
}

.page-header p { color: var(--muted); font-size: 0.9rem; margin-top: 0.25rem; }

/* Article grid */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.article-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  cursor: pointer;
  transition: box-shadow 0.2s, transform 0.15s;
}

.article-card:hover {
  box-shadow: 0 4px 20px rgba(15,36,68,0.1);
  transform: translateY(-2px);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.badge {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  color: white;
}

.badge-research  { background: var(--research); }
.badge-legal     { background: var(--legal); }
.badge-policy    { background: var(--policy); }
.badge-treatment { background: var(--treatment); }
.badge-community { background: var(--community); }

.card-date { font-size: 0.78rem; color: var(--muted); }

.article-card h2 {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.6rem;
  color: var(--navy);
}

.article-card p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
}

/* Article detail */
.article-detail {
  max-width: 720px;
  margin: 0 auto;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
  transition: color 0.15s;
}

.back-link:hover { color: var(--accent); }

.article-detail .article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.article-detail h1 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--navy);
  margin-bottom: 1.5rem;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text);
}

.article-body p { margin-bottom: 1.25rem; }
.article-body h2 { font-size: 1.2rem; font-weight: 700; color: var(--navy); margin: 2rem 0 0.75rem; }
.article-body h3 { font-size: 1rem; font-weight: 700; color: var(--navy); margin: 1.5rem 0 0.5rem; }
.article-body ul, .article-body ol { padding-left: 1.5rem; margin-bottom: 1.25rem; }
.article-body li { margin-bottom: 0.4rem; }

.source-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 2rem;
  padding: 0.6rem 1rem;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Empty / loading */
.loading, .empty {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--muted);
}

/* Footer */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.6);
  padding: 2rem 0;
  font-size: 0.85rem;
}

footer p { margin-bottom: 0.75rem; }

.related { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.related span { color: rgba(255,255,255,0.4); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; }
.related a { color: rgba(255,255,255,0.65); transition: color 0.15s; }
.related a:hover { color: white; }

/* Contact modal */
.contact-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,15,30,0.7);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.contact-overlay.open { display: flex; }

.contact-modal {
  background: #fff;
  border-radius: 1rem;
  padding: 2.5rem;
  max-width: 520px;
  width: 100%;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.contact-close {
  position: absolute;
  top: 1rem; right: 1.25rem;
  background: none; border: none;
  font-size: 1.5rem; cursor: pointer;
  color: var(--muted); line-height: 1;
}

.contact-close:hover { color: var(--text); }

.contact-modal h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.25rem;
}

.contact-sub { color: var(--muted); font-size: 0.875rem; margin-bottom: 1.5rem; }

.contact-modal form { display: flex; flex-direction: column; gap: 1rem; }

.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.contact-modal label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--navy-mid);
  margin-bottom: 0.35rem;
}

.contact-modal input,
.contact-modal textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.65rem 0.9rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg);
  transition: border-color 0.15s;
}

.contact-modal input:focus,
.contact-modal textarea:focus { outline: none; border-color: var(--accent); }

.contact-modal textarea { resize: vertical; min-height: 100px; }

.contact-modal button[type="submit"] {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
  font-family: inherit;
}

.contact-modal button[type="submit"]:hover { background: var(--navy-mid); }

.cf-success {
  display: none;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

@media (max-width: 600px) {
  .article-grid { grid-template-columns: 1fr; }
  header .container { gap: 0.75rem; }
  nav { gap: 1rem; }
  .cf-row { grid-template-columns: 1fr; }
  .contact-modal { padding: 1.75rem 1.25rem; }
}