/* ===========================
   Joseph Brownsberger — Site Styles
   Clean, light, liquid-glass aesthetic — staid serif typography, flat color (no gradients)
   =========================== */

:root {
  --bg-base: #f4f1ea;
  --accent-navy: #1f3b57;
  --accent-gold: #b8863b;
  --accent-forest: #2f5d4f;
  --text-main: #1c2430;
  --text-soft: #4a5568;
  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-bg-strong: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.65);
  --glass-shadow: 0 8px 32px rgba(31, 59, 87, 0.12);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-base);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--accent-navy);
}

.brand, .tagline, .pub-title {
  font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
}

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

a:hover {
  color: var(--accent-gold);
}

p {
  line-height: 1.7;
  color: var(--text-soft);
}

/* ---------- Background orbs (flat solid color, no gradient) ---------- */
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.16;
}

.orb-1 {
  width: 480px;
  height: 480px;
  background: var(--accent-gold);
  top: -120px;
  left: -100px;
}

.orb-2 {
  width: 520px;
  height: 520px;
  background: var(--accent-forest);
  top: 40%;
  right: -160px;
}

.orb-3 {
  width: 400px;
  height: 400px;
  background: var(--accent-navy);
  bottom: -160px;
  left: 30%;
  opacity: 0.10;
}

/* ---------- Liquid glass core ---------- */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  position: relative;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  display: flex;
  justify-content: center;
  padding: 0 20px;
}

.nav-glass {
  width: min(1100px, 94%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-radius: 999px;
}

.brand {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--accent-navy);
}

.nav-links {
  display: flex;
  gap: 24px;
  font-size: 0.92rem;
}

.nav-links a {
  color: var(--text-main);
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--accent-gold);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 24px 20px 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.hero-bg-photo {
  position: absolute;
  inset: 0;
  background-color: var(--accent-navy);
  background-size: cover;
  background-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 25, 35, 0.42);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 40px 24px;
  max-width: 640px;
}

.headshot-frame {
  width: 148px;
  height: 148px;
  margin: 0 auto 22px;
  border-radius: 50%;
  padding: 6px;
  background: var(--glass-bg-strong);
  overflow: hidden;
}

.headshot-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.hero h1 {
  color: #fff;
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin: 0 0 6px;
}

.tagline {
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.9);
  margin: 0 0 18px;
  text-transform: uppercase;
  font-weight: 500;
}

.hero-sub {
  color: rgba(255,255,255,0.92);
  font-size: 1.05rem;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 8px;
}

.btn {
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-block;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent-gold);
  color: #fff;
  box-shadow: 0 6px 18px rgba(184, 134, 59, 0.3);
}

.btn-primary:hover {
  color: #fff;
  box-shadow: 0 8px 22px rgba(184, 134, 59, 0.4);
}

.btn-secondary {
  background: rgba(255,255,255,0.18);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.3);
  color: #fff;
}

/* ---------- Sections ---------- */
.section {
  width: min(1000px, 90%);
  margin: 60px auto;
}

.section-title {
  text-align: center;
  margin-bottom: 28px;
  font-size: 1.6rem;
}

.card {
  padding: 40px 44px;
}

.about-card h2, .contact-card h2 {
  margin-top: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.small-card {
  padding: 28px 30px;
}

.small-card h3 {
  margin-top: 0;
  font-size: 1.15rem;
  color: var(--accent-forest);
}

.small-card p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

.contact-card {
  text-align: center;
}

.contact-card .hero-actions {
  margin-top: 20px;
}

.contact-card .btn-primary,
.contact-card .btn-secondary {
  color: #fff;
}

.contact-card .btn-secondary {
  background: rgba(31,59,87,0.08);
  color: var(--accent-navy);
  border: 1px solid rgba(31,59,87,0.25);
}

.contact-card .btn-secondary:hover {
  background: rgba(31,59,87,0.14);
  color: var(--accent-navy);
}

/* ---------- Publications page ---------- */
.pub-main {
  width: min(1000px, 90%);
  margin: 0 auto;
}

.pub-hero {
  text-align: center;
  margin-top: 60px;
}

.pub-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.pub-card {
  padding: 36px 42px;
}

.pub-card h2 {
  margin-top: 0;
  font-size: 1.3rem;
  border-bottom: 1px solid rgba(31,59,87,0.15);
  padding-bottom: 12px;
  margin-bottom: 20px;
}

.pub-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pub-list li {
  padding: 14px 0;
  border-bottom: 1px solid rgba(31,59,87,0.08);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pub-list li:last-child {
  border-bottom: none;
}

.pub-title {
  font-weight: 600;
  color: var(--text-main);
  font-size: 1.02rem;
}

.pub-meta {
  font-size: 0.88rem;
  color: var(--text-soft);
}

/* ---------- Footer ---------- */
.site-footer {
  text-align: center;
  padding: 40px 20px 50px;
  font-size: 0.82rem;
  color: var(--text-soft);
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .nav-links {
    gap: 14px;
    font-size: 0.82rem;
  }
  .card, .pub-card {
    padding: 28px 24px;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    min-height: 88vh;
    margin: 12px 12px 0;
  }
}