/* ==========================================================================
   William & Mary Branded Academic Portfolio
   Colors from official W&M Brand Hub (brand.wm.edu)
   ========================================================================== */

/* --- CSS Custom Properties (W&M Brand Colors) --- */
:root {
  /* Primary Palette */
  --wm-green: #004E38;
  --wm-gold: #B79257;
  --wm-silver: #D8DCDB;
  --wm-white: #FFFFFF;

  /* Secondary Greens */
  --wm-dark-green: #00231B;
  --wm-griffin-green: #28463D;
  --wm-patina: #76A190;
  --wm-sage: #B8DDB1;
  --wm-moss: #789D4A;

  /* Spirit Palette */
  --wm-spirit-gold: #FDB714;

  /* Tertiary */
  --wm-midnight-blue: #0D3E4A;
  --wm-marine-blue: #247B8C;
  --wm-slate-blue: #7399C1;

  /* Layout */
  --max-width: 1100px;
  --nav-height: 60px;
  --sidebar-width: 260px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 20px);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  line-height: 1.7;
  color: #2c2c2c;
  background: var(--wm-white);
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--wm-green); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--wm-gold); }

h1, h2, h3, h4, h5, h6 {
  color: var(--wm-green);
  line-height: 1.3;
  margin-bottom: 0.5em;
}
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; border-bottom: 2px solid var(--wm-gold); padding-bottom: 0.3em; margin-top: 1.8em; margin-bottom: 0.8em; }
h3 { font-size: 1.2rem; margin-top: 1.4em; }
h4 { font-size: 1.05rem; margin-top: 1em; }

p { margin-bottom: 1em; }
ul, ol { margin: 0 0 1em 1.5em; }
li { margin-bottom: 0.35em; }

/* --- Top Navigation --- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--wm-green);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.site-nav .nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: var(--nav-height);
}
.site-nav .nav-brand {
  color: var(--wm-white);
  font-weight: 700;
  font-size: 1.1rem;
  white-space: nowrap;
}
.site-nav .nav-brand:hover { color: var(--wm-gold); }

.site-nav .nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.15rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.site-nav .nav-links a {
  color: var(--wm-silver);
  font-size: 0.85rem;
  padding: 0.4rem 0.65rem;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}
.site-nav .nav-links a:hover,
.site-nav .nav-links a.active {
  background: var(--wm-griffin-green);
  color: var(--wm-white);
}

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown > a::after { content: ' \25BE'; font-size: 0.7em; }
.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--wm-green);
  border-radius: 0 0 6px 6px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  min-width: 220px;
  padding: 0.4rem 0;
  z-index: 1001;
}
.nav-dropdown:hover .nav-dropdown-menu { display: block; }
.nav-dropdown-menu a {
  display: block;
  padding: 0.45rem 1rem;
  border-radius: 0;
}

/* Mobile hamburger */
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--wm-white);
  margin: 5px 0;
  transition: 0.3s;
}

/* --- Hero Section --- */
.hero {
  background: linear-gradient(135deg, var(--wm-dark-green), var(--wm-green) 60%, var(--wm-griffin-green));
  color: var(--wm-white);
  padding: 5rem 1.5rem 3.5rem;
  margin-top: var(--nav-height);
  text-align: center;
}
.hero h1 {
  color: var(--wm-white);
  font-size: 2.4rem;
  margin-bottom: 0.3em;
}
.hero .subtitle {
  color: var(--wm-gold);
  font-size: 1.15rem;
  font-style: italic;
  margin-bottom: 1.5rem;
}
.hero .hero-title {
  color: var(--wm-silver);
  font-size: 1rem;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* --- Page Header (for inner pages) --- */
.page-header {
  background: linear-gradient(135deg, var(--wm-dark-green), var(--wm-green));
  color: var(--wm-white);
  padding: 3rem 1.5rem 2rem;
  margin-top: var(--nav-height);
}
.page-header h1 {
  color: var(--wm-white);
  max-width: var(--max-width);
  margin: 0 auto;
  border-bottom: none;
  font-size: 2rem;
}
.page-header .breadcrumb {
  max-width: var(--max-width);
  margin: 0.5rem auto 0;
  font-size: 0.85rem;
  color: var(--wm-patina);
}
.page-header .breadcrumb a { color: var(--wm-gold); }

/* --- Main Content Area --- */
.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}

/* Two-column layout: sidebar + content */
.layout-sidebar {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: 2.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}

/* --- Sidebar --- */
.sidebar { position: sticky; top: calc(var(--nav-height) + 1.5rem); align-self: start; }
.sidebar-nav { list-style: none; margin: 0; padding: 0; }
.sidebar-nav a {
  display: block;
  padding: 0.55rem 1rem;
  color: #444;
  border-left: 3px solid transparent;
  font-size: 0.9rem;
  transition: all 0.2s;
}
.sidebar-nav a:hover,
.sidebar-nav a.active {
  color: var(--wm-green);
  border-left-color: var(--wm-gold);
  background: #f7f7f5;
}

/* --- Home Page Grid --- */
.home-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.5rem;
  align-items: start;
}
.home-photo {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}
.home-intro h2 { margin-top: 0; }

/* --- Cards --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}
.card {
  background: var(--wm-white);
  border: 1px solid #e8e8e5;
  border-radius: 8px;
  padding: 1.5rem;
  transition: box-shadow 0.2s, transform 0.15s;
}
.card:hover {
  box-shadow: 0 6px 20px rgba(0,78,56,0.08);
  transform: translateY(-2px);
}
.card h3 { margin-top: 0; font-size: 1.1rem; }
.card .card-meta {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 0.5em;
}

/* --- Publication List --- */
.pub-list { list-style: none; margin: 0; padding: 0; counter-reset: pub-counter; }
.pub-list li {
  position: relative;
  padding: 1rem 0 1rem 2.5rem;
  border-bottom: 1px solid #eee;
}
.pub-list li::before {
  counter-increment: pub-counter;
  content: counter(pub-counter) ".";
  position: absolute;
  left: 0;
  top: 1rem;
  color: var(--wm-gold);
  font-weight: 700;
  font-size: 0.95rem;
}
.pub-list .pub-title { font-weight: 600; color: var(--wm-green); }
.pub-list .pub-venue { font-style: italic; color: #666; }
.pub-list .pub-year { color: var(--wm-gold); font-weight: 600; font-size: 0.85rem; }

/* --- Awards Timeline --- */
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline-year {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--wm-green);
  margin: 1.5rem 0 0.5rem;
  padding-bottom: 0.3rem;
  border-bottom: 2px solid var(--wm-gold);
  display: inline-block;
}
.timeline-item {
  padding: 0.6rem 0 0.6rem 1.5rem;
  border-left: 3px solid var(--wm-silver);
  margin-left: 0.5rem;
}
.timeline-item:hover { border-left-color: var(--wm-gold); }

/* --- Highlight Boxes --- */
.highlight-box {
  background: linear-gradient(135deg, #f0f7f4, #f7f9f5);
  border-left: 4px solid var(--wm-gold);
  padding: 1.2rem 1.5rem;
  border-radius: 0 6px 6px 0;
  margin: 1.5rem 0;
}

/* --- Testimonial / Feedback --- */
.testimonial {
  background: #f9faf8;
  border-radius: 8px;
  padding: 1.2rem 1.5rem;
  margin: 1rem 0;
  border-left: 4px solid var(--wm-patina);
  font-style: italic;
  color: #444;
}
.testimonial .course-name {
  font-style: normal;
  font-weight: 700;
  color: var(--wm-green);
  font-size: 0.85rem;
  margin-bottom: 0.3em;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  border-radius: 5px;
  font-weight: 600;
  font-size: 0.9rem;
  text-align: center;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--wm-green);
  color: var(--wm-white);
}
.btn-primary:hover {
  background: var(--wm-griffin-green);
  color: var(--wm-white);
}
.btn-outline {
  border: 2px solid var(--wm-green);
  color: var(--wm-green);
  background: transparent;
}
.btn-outline:hover {
  background: var(--wm-green);
  color: var(--wm-white);
}

/* --- Tags / Badges --- */
.badge {
  display: inline-block;
  background: var(--wm-silver);
  color: var(--wm-griffin-green);
  padding: 0.15rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin: 0.1rem 0.2rem;
}
.badge-gold { background: #fdf3e0; color: #8a6420; }
.badge-green { background: #e8f5e9; color: var(--wm-green); }

/* --- Footer --- */
.site-footer {
  background: var(--wm-dark-green);
  color: var(--wm-silver);
  padding: 2.5rem 1.5rem;
  margin-top: 3rem;
}
.site-footer .footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
}
.site-footer h3 { color: var(--wm-gold); font-size: 1rem; margin-bottom: 0.6rem; }
.site-footer a { color: var(--wm-patina); }
.site-footer a:hover { color: var(--wm-gold); }
.site-footer .footer-bottom {
  max-width: var(--max-width);
  margin: 1.5rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--wm-griffin-green);
  text-align: center;
  font-size: 0.8rem;
  color: var(--wm-patina);
}

/* --- Utility Classes --- */
.text-gold { color: var(--wm-gold); }
.text-green { color: var(--wm-green); }
.text-muted { color: #888; font-size: 0.9em; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* --- Responsive --- */
@media (max-width: 900px) {
  .home-grid { grid-template-columns: 1fr; }
  .home-photo { max-width: 240px; margin: 0 auto; }
  .layout-sidebar { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .sidebar-nav { display: flex; flex-wrap: wrap; gap: 0.3rem; }
  .sidebar-nav a { border-left: none; border-bottom: 2px solid transparent; padding: 0.4rem 0.8rem; }
  .sidebar-nav a:hover, .sidebar-nav a.active { border-bottom-color: var(--wm-gold); border-left: none; }
  .site-footer .footer-inner { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--wm-green);
    padding: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  }
  .nav-dropdown-menu {
    position: static;
    box-shadow: none;
    padding-left: 1rem;
  }
  .nav-dropdown:hover .nav-dropdown-menu { display: none; }
  .nav-dropdown.open .nav-dropdown-menu { display: block; }
  .hero h1 { font-size: 1.8rem; }
  .hero { padding: 3.5rem 1rem 2.5rem; }
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.25rem; }
}

/* --- Print --- */
@media print {
  .site-nav, .site-footer, .nav-toggle { display: none; }
  .hero, .page-header { background: none; color: #000; padding: 1rem 0; margin-top: 0; }
  .hero h1, .page-header h1 { color: #000; }
  body { font-size: 11pt; }
}