/* ═══════════════════════════════════════
   Dr. UVC Market Insights™ — Global CSS
   Brand Standard v1.0
═══════════════════════════════════════ */

:root {
  --bg:        #FFFDE7;
  --dark:      #1a1a2e;
  --navy:      #16213e;
  --blue:      #0f3460;
  --gold:      #FFD700;
  --green:     #00a854;
  --red:       #cc0033;
  --gray:      #888;
  --border:    #e0e0e0;
  --card-bg:   #ffffff;
  --text:      #1a1a2e;
  --subtext:   #555;
}

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

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
}

/* ── NAV ── */
nav {
  background: var(--dark);
  padding: 0 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 2px solid var(--gold);
}
nav .nav-brand {
  color: var(--gold);
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 1px;
  text-decoration: none;
}
nav .nav-links { display: flex; gap: 28px; }
nav .nav-links a {
  color: #ccc;
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.5px;
  transition: color 0.2s;
}
nav .nav-links a:hover { color: var(--gold); }
nav .nav-links a.active { color: var(--gold); font-weight: 700; }

/* ── HERO ── */
.hero {
  background: var(--dark);
  color: #fff;
  text-align: center;
  padding: 60px 20px 50px;
  border-bottom: 3px solid var(--gold);
}
.hero .hero-eyebrow {
  font-size: 11px;
  letter-spacing: 3px;
  color: #aaa;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.hero h1 {
  font-size: 36px;
  font-weight: 900;
  color: var(--gold);
  letter-spacing: 2px;
  line-height: 1.2;
  margin-bottom: 12px;
}
.hero .hero-sub {
  font-size: 15px;
  color: #ccc;
  max-width: 680px;
  margin: 0 auto 24px;
  line-height: 1.7;
}
.hero .hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  margin-top: 20px;
}
.hero .hs-item { text-align: center; }
.hero .hs-val { font-size: 28px; font-weight: 900; color: var(--gold); }
.hero .hs-lbl { font-size: 10px; color: #aaa; letter-spacing: 2px; }

/* ── CONTAINERS ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.section-wrap { padding: 40px 0; }

/* ── SECTION TITLES ── */
.section-heading {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--blue);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.section-title {
  font-size: 22px;
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--gold);
}

/* ── CARDS ── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 14px;
  transition: box-shadow 0.2s;
}
.card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.08); }

/* ── TRACKER GRID ── */
.tracker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.tracker-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 5px solid var(--gold);
  border-radius: 8px;
  padding: 18px 20px;
  text-decoration: none;
  color: var(--text);
  display: block;
  transition: box-shadow 0.2s, transform 0.2s;
}
.tracker-card:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.10);
  transform: translateY(-2px);
}
.tracker-card .tc-post {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--gray);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.tracker-card .tc-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 6px;
  line-height: 1.3;
}
.tracker-card .tc-date {
  font-size: 12px;
  color: var(--subtext);
  margin-bottom: 10px;
}
.tracker-card .tc-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.tag {
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.tag-dj { background: #e8f4fd; color: #0f3460; }
.tag-ndx { background: #fff3e0; color: #e65100; }
.tag-sox { background: #f3e5f5; color: #6a1b9a; }
.tag-master { background: #e8f5e9; color: #1b5e20; }
.tag-roti { background: #fff8e1; color: #f57f17; }
.tag-new { background: var(--gold); color: var(--dark); }

/* ── FILTER BAR ── */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.filter-btn {
  padding: 6px 16px;
  border-radius: 20px;
  border: 2px solid var(--border);
  background: #fff;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.5px;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--dark);
  color: var(--gold);
  border-color: var(--dark);
}

/* ── ABOUT / ROTI BLOCKS ── */
.roti-bar {
  background: var(--dark);
  border-left: 6px solid var(--gold);
  border-radius: 6px;
  padding: 20px 24px;
  margin: 24px 0;
  color: #e0e0e0;
  font-size: 14px;
  line-height: 1.8;
}
.roti-bar strong { color: var(--gold); font-size: 13px; letter-spacing: 1px; }
.roti-bar .big-num { font-size: 40px; font-weight: 900; color: var(--gold); line-height: 1; }

/* ── SUBSTACK CTA ── */
.cta-block {
  background: var(--blue);
  color: #fff;
  text-align: center;
  padding: 40px 24px;
  border-radius: 10px;
  margin: 32px 0;
}
.cta-block h2 { color: var(--gold); font-size: 22px; margin-bottom: 10px; }
.cta-block p { color: #ccc; margin-bottom: 20px; font-size: 14px; }
.btn-gold {
  display: inline-block;
  background: var(--gold);
  color: var(--dark);
  font-weight: 900;
  font-size: 14px;
  padding: 12px 32px;
  border-radius: 6px;
  text-decoration: none;
  letter-spacing: 1px;
  transition: opacity 0.2s;
}
.btn-gold:hover { opacity: 0.85; }

/* ── FOOTER ── */
footer {
  background: var(--dark);
  color: #aaa;
  text-align: center;
  padding: 28px 20px;
  font-size: 11px;
  line-height: 1.9;
  border-top: 2px solid var(--gold);
  margin-top: 48px;
}
footer .footer-brand { color: var(--gold); font-weight: 900; font-size: 14px; letter-spacing: 1px; margin-bottom: 6px; }
footer a { color: var(--gold); text-decoration: none; }

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .hero h1 { font-size: 24px; }
  nav .nav-links { gap: 16px; }
  .tracker-grid { grid-template-columns: 1fr; }
}