@import url("https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700&family=Crimson+Text:ital,wght@0,400;0,600;1,400&family=Open+Sans:wght@400;600&display=swap");

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --card: #21262d;
  --border: #30363d;
  --text: #c9d1d9;
  --text-muted: #8b949e;
  --accent: #388bfd;
  --gold: #e3b341;
  --lightning: #f0e68c;
  --danger: #f85149;
  --success: #56d364;
  --radius: 8px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  color: var(--text);
  background: var(--bg);
  font-family: "Open Sans", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

h1,
h2,
h3,
h4 {
  color: var(--lightning);
  font-family: "Cinzel", serif;
  line-height: 1.2;
}

h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
}

h2 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.3rem, 3vw, 1.9rem);
}

h3 {
  color: var(--gold);
  font-size: 1.2rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--lightning);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

strong {
  color: var(--gold);
}

em {
  color: var(--text-muted);
  font-family: "Crimson Text", serif;
  font-style: italic;
}

ul,
ol {
  margin-bottom: 1rem;
  padding-left: 1.4rem;
}

li {
  margin-bottom: 0.3rem;
}

.skip-link {
  position: absolute;
  top: -5rem;
  left: 1rem;
  z-index: 300;
  padding: 0.6rem 0.9rem;
  color: var(--bg);
  background: var(--lightning);
  font-weight: 700;
}

.skip-link:focus {
  top: 0;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-brand {
  color: var(--lightning);
  font-family: "Cinzel", serif;
  font-size: 1.1rem;
  font-weight: 700;
  white-space: nowrap;
}

.nav-brand span {
  color: var(--gold);
}

.nav-links {
  display: flex;
  margin: 0;
  padding: 0;
  gap: 1.5rem;
  flex-wrap: wrap;
  list-style: none;
}

.nav-links li {
  margin: 0;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--lightning);
}

.hero {
  position: relative;
  padding: 4rem 1.5rem;
  overflow: hidden;
  text-align: center;
  background: linear-gradient(160deg, #0a0e14 0%, #0d1a2e 50%, #0a0e14 100%);
  border-bottom: 1px solid var(--border);
}

.hero::before {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgb(56 139 253 / 0.12), transparent 70%),
    radial-gradient(ellipse 30% 20% at 70% 30%, rgb(240 230 140 / 0.06), transparent 60%);
  content: "";
  pointer-events: none;
}

.hero > * {
  position: relative;
}

.hero-eyebrow {
  margin-bottom: 0.75rem;
  color: var(--gold);
  font-family: "Cinzel", serif;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero h1 {
  margin-bottom: 1rem;
}

.hero-sub {
  max-width: 600px;
  margin: 0 auto 1.5rem;
  color: var(--text-muted);
  font-family: "Crimson Text", serif;
  font-size: 1.25rem;
  font-style: italic;
}

.tag-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-tag {
  display: inline-block;
  margin: 0.25rem;
  padding: 0.3rem 0.9rem;
  color: var(--accent);
  background: rgb(56 139 253 / 0.15);
  border: 1px solid rgb(56 139 253 / 0.35);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.page-header {
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  margin-bottom: 0.5rem;
}

.page-header .hero-eyebrow {
  margin-bottom: 0.5rem;
}

.page-header .hero-sub {
  margin-bottom: 0;
  font-size: 1.1rem;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.section {
  margin-bottom: 3.5rem;
}

.section:last-child {
  margin-bottom: 0;
}

.session-artwork {
  margin: 0 0 3.5rem;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 1rem 2.5rem rgb(0 0 0 / 0.35);
}

.session-artwork img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.session-artwork figcaption {
  padding: 0.7rem 1rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  font-family: "Crimson Text", serif;
  font-size: 0.95rem;
  font-style: italic;
  text-align: center;
}

.section-label {
  margin-bottom: 0.5rem;
  color: var(--gold);
  font-family: "Cinzel", serif;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.grid-2,
.grid-3 {
  display: grid;
  gap: 1.25rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  padding: 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.15s;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card-title {
  margin-bottom: 0.25rem;
  color: var(--lightning);
  font-family: "Cinzel", serif;
  font-size: 1.1rem;
}

.card-sub {
  margin-bottom: 0.75rem;
  color: var(--gold);
  font-size: 0.85rem;
  font-weight: 600;
}

.card-meta {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.callout {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  background: rgb(56 139 253 / 0.08);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
}

.callout-title {
  margin-bottom: 0.4rem;
  font-family: "Cinzel", serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

blockquote {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  color: var(--text-muted);
  background: var(--surface);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-family: "Crimson Text", serif;
  font-size: 1.1rem;
  font-style: italic;
}

.timeline {
  position: relative;
  margin: 1.5rem 0 0;
  padding: 0 0 0 2rem;
  list-style: none;
}

.timeline::before {
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 0.42rem;
  width: 2px;
  background: var(--border);
  content: "";
}

.timeline-item {
  position: relative;
  margin-bottom: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.timeline-item::before {
  position: absolute;
  top: 1.45rem;
  left: -2rem;
  width: 0.72rem;
  height: 0.72rem;
  background: var(--gold);
  border: 3px solid var(--bg);
  border-radius: 50%;
  content: "";
}

.timeline-date {
  margin-bottom: 0.25rem;
  color: var(--gold);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.link-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  gap: 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

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

.link-panel p {
  margin-top: 0.35rem;
  color: var(--text-muted);
}

.button {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  min-height: 2.6rem;
  padding: 0.5rem 0.8rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: border-color 0.2s, color 0.2s;
}

.button:hover {
  color: var(--lightning);
  border-color: var(--lightning);
}

.shopping-list {
  display: grid;
  margin: 1rem 0;
  padding: 0;
  gap: 0.65rem;
  list-style: none;
}

.shopping-list li {
  display: flex;
  align-items: center;
  min-height: 3rem;
  margin: 0;
  padding: 0.65rem 0.9rem;
  gap: 0.75rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.shopping-list input {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent);
}

.shopping-list label {
  flex: 1;
}

.session-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.session-nav-next {
  margin-left: auto;
}

.error-page {
  display: grid;
  min-height: 100vh;
  padding: 2rem;
  place-items: center;
  text-align: center;
}

.error-content {
  max-width: 38rem;
}

.error-code {
  color: var(--gold);
  font-family: "Cinzel", serif;
  font-size: clamp(5rem, 20vw, 11rem);
  font-weight: 700;
  line-height: 0.85;
}

.error-content h1 {
  margin: 1rem 0;
}

.error-content p {
  color: var(--text-muted);
}

.site-footer {
  padding: 2rem 1.5rem;
  color: var(--text-muted);
  text-align: center;
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
}

.site-footer p {
  color: var(--text-muted);
}

@media (max-width: 600px) {
  .nav-inner {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .nav-links {
    gap: 0.75rem;
  }

  .nav-links a {
    font-size: 0.8rem;
  }

  .hero {
    padding: 2.5rem 1rem;
  }

  .container {
    padding: 2rem 1rem;
  }

  .link-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .session-nav .button {
    width: 100%;
  }

  .session-nav-next {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .session-artwork {
    break-inside: avoid;
    box-shadow: none;
  }
}