/* ============================================================
   NYC Traffic & Road Infrastructure Analysis – Custom Styles
   CIS 9440 Group 3 | Baruch College
   ============================================================ */

/* --- Google Fonts (loaded via @import in HTML head) --------- */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display&family=DM+Sans:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- Base typography ---------------------------------------- */
body {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.02rem;
  line-height: 1.75;
}

h1, h2, h3, h4 {
  font-family: 'DM Serif Display', serif;
  letter-spacing: -0.02em;
}

/* --- Cover / hero banner ------------------------------------ */
.project-hero {
  background: linear-gradient(135deg, #1a3a5c 0%, #2e6da4 60%, #4a9ede 100%);
  color: #fff;
  padding: 3.5rem 2.5rem 3rem;
  border-radius: 10px;
  margin-bottom: 2.5rem;
  position: relative;
  overflow: hidden;
}

.project-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.6;
}

.project-hero h1 {
  font-size: 2.4rem;
  margin-bottom: 0.4rem;
  color: #fff;
  border: none;
  position: relative;
}

.project-hero .subtitle {
  font-size: 1.05rem;
  opacity: 0.85;
  position: relative;
}

.project-hero .meta-tags {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  position: relative;
}

.tag {
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  padding: 0.2rem 0.75rem;
  border-radius: 99px;
  font-size: 0.82rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
}

/* --- KPI / callout cards ------------------------------------ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

.kpi-card {
  background: #f0f6ff;
  border-left: 4px solid #2e6da4;
  padding: 1rem 1.2rem;
  border-radius: 6px;
}

.kpi-card .kpi-value {
  font-size: 2rem;
  font-family: 'DM Serif Display', serif;
  color: #1a3a5c;
  line-height: 1.1;
}

.kpi-card .kpi-label {
  font-size: 0.78rem;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 0.2rem;
}

/* --- Section dividers --------------------------------------- */
.section-rule {
  border: none;
  border-top: 2px solid #e5e7eb;
  margin: 2.5rem 0;
}

/* --- Code blocks -------------------------------------------- */
pre, code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88rem;
}

/* --- Embedded iframe (Looker Studio / dbdiagram) ------------ */
.embed-container {
  position: relative;
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #d1d5db;
  margin: 1.5rem 0;
}

.embed-container iframe {
  width: 100%;
  border: none;
  display: block;
}

/* --- Image captions ----------------------------------------- */
figure figcaption {
  font-size: 0.82rem;
  color: #6b7280;
  text-align: center;
  margin-top: 0.4rem;
  font-style: italic;
}

/* --- Quarto callout overrides ------------------------------- */
.callout {
  border-radius: 6px;
}

/* --- Navbar tweak ------------------------------------------- */
.navbar-brand {
  font-family: 'DM Serif Display', serif;
  font-size: 1.15rem !important;
}

/* --- Dark mode adjustments ---------------------------------- */
[data-bs-theme="dark"] .kpi-card {
  background: #1e2d40;
  border-left-color: #4a9ede;
}

[data-bs-theme="dark"] .kpi-card .kpi-value {
  color: #90c8f0;
}

[data-bs-theme="dark"] .kpi-card .kpi-label {
  color: #9ca3af;
}

[data-bs-theme="dark"] .project-hero {
  background: linear-gradient(135deg, #0d1f30 0%, #1a3a5c 60%, #2e6da4 100%);
}