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

html {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--color-ink);
  background-color: var(--color-ground);
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
  accent-color: var(--color-accent);
  caret-color: var(--color-accent);
  scroll-behavior: smooth;
}

::selection {
  background-color: var(--color-plant-soft);
  color: var(--color-ink);
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Demo top banner */
.demo-banner {
  background-color: var(--color-ink);
  color: var(--color-ground);
  text-align: center;
  padding: var(--space-3) var(--space-4);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  border-bottom: 1px solid color-mix(in oklch, var(--color-ground) 20%, transparent);
}

.demo-banner p {
  max-width: none;
  margin: 0 auto;
  color: var(--color-ground);
}

/* Typography basics */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-ink);
  text-wrap: balance;
}

h1 {
  font-size: var(--size-h1);
  letter-spacing: -0.025em;
}

h2 {
  font-size: var(--size-h2);
  letter-spacing: -0.015em;
  margin-bottom: var(--space-4);
}

h3 {
  font-size: var(--size-h3);
}

p {
  font-size: var(--size-body);
  color: var(--color-ink);
  text-wrap: pretty;
  max-width: 65ch;
}

a {
  color: var(--color-plant);
  text-underline-offset: 3px;
}

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

/* Layout containers */
.site-header {
  border-bottom: 2px solid var(--color-surface);
  background-color: var(--color-ground);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-container {
  max-width: 1080px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-ink);
}

.brand-icon {
  width: 24px;
  height: 24px;
  stroke: var(--color-plant);
  fill: none;
  stroke-width: 2;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
}

.site-nav a {
  text-decoration: none;
  color: var(--color-ink-muted);
  font-size: var(--size-small);
  font-weight: 600;
  padding: var(--space-2) 0;
  transition: color 0.15s ease;
}

.site-nav a:hover {
  color: var(--color-ink);
}

.main-content {
  flex: 1;
}

.page-section {
  padding: var(--space-12) var(--space-6);
}

.section-container {
  max-width: 1080px;
  margin: 0 auto;
}

/* Hero Section */
.hero-section {
  padding-top: var(--space-8);
  padding-bottom: var(--space-12);
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-ground) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-8);
  align-items: center;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hero-lead {
  font-size: 1.125rem;
  line-height: 1.5;
  color: var(--color-ink-muted);
}

.event-details-card {
  background-color: var(--color-surface-card);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.event-detail-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  font-size: 1rem;
}

.event-detail-row strong {
  color: var(--color-ink);
}

.event-detail-row span {
  color: var(--color-plant);
  font-weight: 600;
}

.event-detail-row time {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-2);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background-color 0.15s ease, transform 0.05s ease;
  min-height: 48px;
}

.button-primary {
  background-color: var(--color-accent);
  color: #ffffff;
}

.button-primary:hover {
  background-color: var(--color-accent-dark);
  color: #ffffff;
}

.button-secondary {
  background-color: var(--color-plant-soft);
  color: var(--color-plant);
}

.button-secondary:hover {
  background-color: color-mix(in oklch, var(--color-plant-soft) 80%, black);
  color: var(--color-ink);
}

.hero-image-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
}

.hero-image-wrap img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

/* Schedule Section */
.schedule-section {
  background-color: var(--color-ground);
}

.schedule-header-wrap {
  margin-bottom: var(--space-8);
}

.schedule-disclaimer-notice {
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-accent-soft);
  color: var(--color-accent-dark);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9375rem;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.filter-chip {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background-color: var(--color-surface);
  color: var(--color-ink);
  border: 1px solid transparent;
  font-size: var(--size-small);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  min-height: 44px;
}

.filter-chip:hover {
  background-color: color-mix(in oklch, var(--color-surface) 75%, var(--color-plant));
}

.filter-chip[aria-pressed="true"] {
  background-color: var(--color-plant);
  color: #ffffff;
}

.schedule-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  list-style: none;
}

.schedule-card {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  gap: var(--space-6);
  padding: var(--space-6);
  background-color: var(--color-surface-card);
  border-radius: var(--radius);
  align-items: start;
  transition: background-color 0.15s ease;
}

.schedule-card:hover {
  background-color: color-mix(in oklch, var(--color-surface-card) 92%, var(--color-surface));
}

.schedule-card[hidden] {
  display: none;
}

.activity-time {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-plant);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.activity-duration {
  font-size: var(--size-small);
  color: var(--color-ink-muted);
  margin-top: var(--space-1);
}

.activity-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.activity-title {
  font-size: 1.25rem;
  color: var(--color-ink);
  margin: 0;
}

.activity-desc {
  font-size: 1rem;
  color: var(--color-ink-muted);
  line-height: 1.5;
}

.activity-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.tag-badge {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  background-color: var(--color-surface);
  color: var(--color-ink);
}

.tag-badge-highlight {
  background-color: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

.activity-action {
  align-self: center;
}

.activity-action button {
  padding: var(--space-2) var(--space-4);
  font-size: var(--size-small);
  font-weight: 600;
  background: var(--color-surface);
  color: var(--color-ink);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  min-height: 44px;
}

.activity-action button:hover {
  background: var(--color-plant-soft);
  color: var(--color-plant);
}

.activity-action button[aria-pressed="true"] {
  background: var(--color-accent);
  color: #ffffff;
}

/* What to Expect section */
.guide-section {
  background-color: var(--color-surface);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.guide-item {
  background-color: var(--color-ground);
  padding: var(--space-6);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.guide-icon {
  width: 36px;
  height: 36px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 2;
}

.guide-item h3 {
  font-size: 1.2rem;
}

.guide-item p {
  color: var(--color-ink-muted);
  font-size: 0.95rem;
}

/* FAQ / Practical Questions Section */
.faq-section {
  background-color: var(--color-ground);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 800px;
  margin-top: var(--space-6);
}

.faq-item {
  background-color: var(--color-surface-card);
  border-radius: var(--radius);
  padding: var(--space-5);
}

.faq-question {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: var(--space-2);
}

.faq-answer {
  color: var(--color-ink-muted);
  font-size: 1rem;
}

/* Saved Plan Drawer / Bar */
.plan-summary-box {
  margin-top: var(--space-6);
  padding: var(--space-5);
  background-color: var(--color-plant-soft);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.plan-summary-text {
  font-weight: 600;
  color: var(--color-ink);
}

/* Site Footer */
.site-footer {
  background-color: var(--color-ink);
  color: var(--color-ground);
  padding: var(--space-12) var(--space-6);
  margin-top: auto;
}

.footer-container {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-ground);
  line-height: 1.15;
}

.footer-desc {
  color: color-mix(in oklch, var(--color-ground) 75%, transparent);
  max-width: 55ch;
  font-size: 0.95rem;
}

.footer-meta {
  padding-top: var(--space-6);
  border-top: 1px solid color-mix(in oklch, var(--color-ground) 15%, transparent);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--size-small);
  color: color-mix(in oklch, var(--color-ground) 65%, transparent);
}

/* Responsiveness */
@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .schedule-card {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .activity-action {
    align-self: flex-start;
  }

  .guide-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .site-nav {
    display: none;
  }
}