:root {
  --radius: 0.875rem;
  --background: oklch(0.985 0.012 85);
  --foreground: oklch(0.22 0.04 220);
  --card: oklch(1 0 0);
  --primary: oklch(0.34 0.06 200);
  --primary-foreground: oklch(0.985 0.012 85);
  --secondary: oklch(0.95 0.02 85);
  --muted-foreground: oklch(0.48 0.03 220);
  --accent: oklch(0.78 0.15 65);
  --accent-foreground: oklch(0.22 0.04 220);
  --destructive: oklch(0.58 0.2 25);
  --border: oklch(0.9 0.015 85);
  --input: oklch(0.9 0.015 85);
  --ring: oklch(0.34 0.06 200);
  --shadow-soft: 0 1px 2px oklch(0.2 0.04 220 / 0.04), 0 8px 24px oklch(0.2 0.04 220 / 0.06);
  --shadow-lift: 0 4px 12px oklch(0.2 0.04 220 / 0.08), 0 24px 48px oklch(0.2 0.04 220 / 0.1);
  --font-display: "Fraunces", ui-serif, Georgia, serif;
  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--background); color: var(--foreground); font-family: var(--font-sans); line-height: 1.5; }
body { margin: 0; min-height: 100vh; background: var(--background); color: var(--foreground); }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 600; line-height: 1.08; letter-spacing: 0; }
h1 { font-size: clamp(2.5rem, 7vw, 4.5rem); }
h2 { font-size: clamp(2rem, 5vw, 2.5rem); }
h3 { font-size: 1.25rem; }
p { margin: 0; }
button, input, textarea { font: inherit; }

.container-page { max-width: 72rem; margin-inline: auto; padding-inline: 1.25rem; }
.container-narrow { max-width: 42rem; margin-inline: auto; padding-inline: 1.25rem; }
.site-main { min-height: 55vh; }
.skip-link, .screen-reader-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }
.skip-link:focus { z-index: 100; width: auto; height: auto; clip: auto; top: 1rem; left: 1rem; padding: .75rem 1rem; border-radius: .5rem; background: var(--primary); color: var(--primary-foreground); }
.muted { color: var(--muted-foreground); }
.small { font-size: .875rem; }
.mt-1 { margin-top: .25rem; }
.eyebrow { color: var(--accent); font-size: .875rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

.site-header { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid color-mix(in oklch, var(--border) 70%, transparent); background: color-mix(in oklch, var(--background) 82%, transparent); backdrop-filter: blur(14px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 4rem; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-mark { display: grid; width: 2rem; height: 2rem; place-items: center; border-radius: .5rem; background: var(--primary); color: var(--primary-foreground); font-family: var(--font-display); font-size: 1.125rem; }
.brand-logo img { max-height: 2.5rem; width: auto; }
.brand-name { font-family: var(--font-display); font-size: 1.125rem; letter-spacing: 0; }
.primary-nav { display: none; align-items: center; gap: .25rem; }
.menu, .mobile-menu, .footer-menu { display: flex; list-style: none; margin: 0; padding: 0; gap: .25rem; }
.menu a { display: block; border-radius: .375rem; padding: .5rem .75rem; color: color-mix(in oklch, var(--foreground) 82%, transparent); font-size: .875rem; font-weight: 600; }
.menu a:hover, .menu .current-menu-item > a { background: var(--secondary); color: var(--primary); text-decoration: none; }
.menu-toggle { display: grid; width: 2.5rem; height: 2.5rem; place-items: center; border: 0; border-radius: .5rem; background: transparent; color: var(--foreground); cursor: pointer; }
.menu-toggle:hover { background: var(--secondary); }
.menu-icon, .menu-icon::before, .menu-icon::after { display: block; width: 1.25rem; height: 2px; border-radius: 999px; background: currentColor; content: ""; }
.menu-icon::before { transform: translateY(-.4rem); }
.menu-icon::after { transform: translateY(.28rem); }
.menu-toggle[aria-expanded="true"] .menu-icon { background: transparent; }
.menu-toggle[aria-expanded="true"] .menu-icon::before { transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-icon::after { transform: translateY(-2px) rotate(-45deg); }
.mobile-nav { border-top: 1px solid var(--border); background: var(--background); }
.mobile-nav-inner { padding-block: .75rem; }
.mobile-menu { display: grid; gap: .25rem; }
.mobile-menu a { display: block; border-radius: .5rem; padding: .625rem .75rem; font-weight: 600; }
.mobile-menu a:hover { background: var(--secondary); text-decoration: none; }
.mobile-cta { width: 100%; margin-top: .5rem; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; border: 0; border-radius: 999px; background: var(--primary); color: var(--primary-foreground); padding: .75rem 1.5rem; font-weight: 700; box-shadow: var(--shadow-lift); cursor: pointer; text-decoration: none; }
.button:hover { opacity: .95; text-decoration: none; }
.button-small { border-radius: .375rem; padding: .5rem 1rem; font-size: .875rem; box-shadow: var(--shadow-soft); }
.button-secondary { border: 1px solid var(--border); background: var(--card); color: var(--foreground); box-shadow: none; }
.button-accent { background: var(--accent); color: var(--accent-foreground); }

.hero { position: relative; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: -1; background: linear-gradient(to bottom, color-mix(in oklch, var(--secondary) 65%, transparent), var(--background) 58%, var(--background)); }
.hero-inner { padding-block: clamp(4rem, 9vw, 6rem); }
.hero-copy { max-width: 48rem; }
.pill { display: inline-flex; align-items: center; gap: .5rem; border: 1px solid var(--border); border-radius: 999px; background: var(--card); padding: .25rem .75rem; color: var(--muted-foreground); font-size: .75rem; font-weight: 700; box-shadow: var(--shadow-soft); }
.pill span { color: var(--accent); }
.hero h1 { margin-top: 1.25rem; max-width: 44rem; }
.hero h1 em { color: var(--primary); font-style: italic; }
.hero-intro { max-width: 42rem; margin-top: 1.5rem; color: var(--muted-foreground); font-size: clamp(1.125rem, 2vw, 1.25rem); }
.button-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.event-facts { display: grid; max-width: 36rem; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin: 2.5rem 0 0; padding: 0; }
.event-facts div { border-radius: 1rem; background: var(--card); padding: 1rem; box-shadow: var(--shadow-soft); }
.event-facts dt { color: var(--muted-foreground); font-size: .75rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }
.event-facts dd { margin: .25rem 0 0; font-family: var(--font-display); font-size: 1.125rem; }

.section-block, .page-section { padding-block: 4rem; }
.page-section h1 { margin-top: .25rem; font-size: clamp(2.5rem, 6vw, 3.25rem); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 2rem; }
.section-heading h2 { margin-top: .25rem; }
.section-link { display: none; color: var(--primary); font-size: .875rem; font-weight: 700; }

.speaker-grid { display: grid; gap: 1rem; }
.speaker-grid-compact { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.full-speakers { margin-top: 2.5rem; gap: 1.5rem; }
.speaker-card { display: flex; gap: 1.25rem; border-radius: 1rem; background: var(--card); padding: 1.5rem; box-shadow: var(--shadow-soft); }
.speaker-card.compact { display: block; padding: 1.25rem; }
.speaker-avatar { display: grid; flex: 0 0 auto; width: 6rem; height: 6rem; place-items: center; overflow: hidden; border-radius: 1rem; background: linear-gradient(135deg, color-mix(in oklch, var(--primary) 20%, transparent), color-mix(in oklch, var(--accent) 32%, transparent)); color: var(--primary); font-family: var(--font-display); font-size: 2rem; }
.speaker-card.compact .speaker-avatar { width: 100%; height: auto; aspect-ratio: 1; margin-bottom: 1rem; font-size: 3rem; }
.speaker-avatar img { width: 100%; height: 100%; object-fit: cover; }
.speaker-bio { margin-top: .75rem; font-size: .875rem; }

.session-list { list-style: none; margin: 0; padding: 0; }
.session-list.preview { display: grid; gap: .75rem; }
.session-list.full { overflow: hidden; border-radius: 1rem; background: var(--card); box-shadow: var(--shadow-soft); }
.session-row { display: grid; align-items: start; gap: 1rem; border-bottom: 1px solid var(--border); background: var(--card); padding: 1.25rem; }
.session-list.preview .session-row { border: 0; border-radius: 1rem; box-shadow: var(--shadow-soft); }
.session-row:last-child { border-bottom: 0; }
.session-time p { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-weight: 700; }
.session-time span, .session-date, .session-speakers { color: var(--muted-foreground); font-size: .875rem; }
.session-date { font-size: .75rem; font-weight: 700; }
.session-main h3 { margin-top: .125rem; }
.session-tags { display: flex; flex-wrap: wrap; gap: .375rem; }
.tag { display: inline-flex; border-radius: 999px; background: var(--secondary); padding: .25rem .75rem; font-size: .75rem; font-weight: 700; }
.tag-accent { background: color-mix(in oklch, var(--accent) 32%, transparent); }
.schedule-days { display: grid; gap: 3rem; margin-top: 2.5rem; }
.schedule-day h2 { margin-bottom: 1rem; font-size: 1.75rem; text-transform: capitalize; }

.ticket-grid { display: grid; gap: 1rem; }
.ticket-card { display: flex; min-height: 100%; flex-direction: column; border-radius: 1rem; background: var(--card); padding: 1.5rem; box-shadow: var(--shadow-soft); }
.ticket-card .small { margin-top: .5rem; flex: 1; }
.ticket-price { margin-top: 1rem; font-family: var(--font-display); font-size: 2rem; font-weight: 700; }
.ticket-button { margin-top: 1.25rem; padding-block: .625rem; font-size: .875rem; box-shadow: none; }

.faq-cta { border-radius: 1.5rem; background: var(--primary); color: var(--primary-foreground); padding: clamp(2.5rem, 6vw, 4rem); box-shadow: var(--shadow-lift); }
.faq-cta h2 { max-width: 42rem; }
.faq-cta p { max-width: 42rem; margin-top: 1rem; color: color-mix(in oklch, var(--primary-foreground) 82%, transparent); }
.faq-cta .button { margin-top: 1.5rem; }
.faq-list { display: grid; gap: .75rem; margin-top: 2rem; }
.faq-item { border-radius: 1rem; background: var(--card); padding: 1.25rem; box-shadow: var(--shadow-soft); }
.faq-item[open] { box-shadow: var(--shadow-lift); }
.faq-item summary { display: flex; cursor: pointer; list-style: none; align-items: center; justify-content: space-between; gap: 1rem; font-family: var(--font-display); font-size: 1.125rem; font-weight: 700; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item[open] summary span { transform: rotate(45deg); }
.faq-item .small, .faq-item p { margin-top: .75rem; }

.site-footer { margin-top: 6rem; border-top: 1px solid var(--border); background: color-mix(in oklch, var(--secondary) 45%, transparent); }
.footer-grid { display: grid; gap: 1.5rem; padding-block: 2.5rem; }
.footer-brand { font-family: var(--font-display); font-size: 1.125rem; font-weight: 700; }
.footer-menu { margin-top: .75rem; flex-wrap: wrap; }
.footer-menu a { color: var(--muted-foreground); font-size: .875rem; text-decoration: underline; }
.copyright { margin-top: .5rem; font-size: .75rem; }

.page-content, .archive-layout, .error-page { padding-block: 3rem; }
.page-heading { margin-bottom: 2rem; }
.entry-content > * + * { margin-top: 1rem; }
.entry-content a { color: var(--primary); text-decoration: underline; }
.featured-image { margin: 0 0 2rem; overflow: hidden; border-radius: 1rem; }
.post-list { display: grid; gap: 1rem; }
.post-card, .empty-state { border-radius: 1rem; background: var(--card); padding: 1.5rem; box-shadow: var(--shadow-soft); }
.post-card h2 { font-size: 1.5rem; }
.error-page .button { margin-top: 1.5rem; }
.page-extra-content { padding-bottom: 4rem; }

.registration-form { display: grid; gap: 2rem; margin-top: 2rem; }
.registration-form fieldset { display: grid; gap: 1rem; margin: 0; border: 0; padding: 0; }
.registration-form legend { margin-bottom: .75rem; font-family: var(--font-display); font-size: 1.125rem; font-weight: 700; }
.ticket-choice-grid { display: grid; gap: .75rem; }
.ticket-choice { display: flex; cursor: pointer; align-items: center; justify-content: space-between; gap: 1rem; border: 1px solid var(--border); border-radius: 1rem; background: var(--card); padding: 1rem; }
.ticket-choice:has(input:checked) { border-color: var(--primary); background: var(--secondary); box-shadow: var(--shadow-soft); }
.ticket-choice strong, .ticket-choice em, .ticket-choice b { display: block; }
.ticket-choice em { color: var(--muted-foreground); font-style: normal; font-size: .875rem; }
.ticket-choice b { font-family: var(--font-display); font-size: 1.25rem; }
.form-grid { display: grid; gap: 1rem; }
.registration-form label { display: grid; gap: .25rem; font-size: .875rem; font-weight: 600; }
.registration-form label span { color: var(--destructive); }
.registration-form input:not([type="checkbox"]):not([type="radio"]), .registration-form textarea { width: 100%; border: 1px solid var(--input); border-radius: .625rem; background: var(--card); padding: .7rem .75rem; color: var(--foreground); }
.registration-form input:focus, .registration-form textarea:focus { outline: 2px solid var(--ring); outline-offset: 2px; }
.check-row { display: flex !important; grid-template-columns: auto 1fr; align-items: start; gap: .75rem !important; font-weight: 400 !important; }
.check-row span { color: inherit !important; }
.submit-button { width: 100%; }
.notice { border-radius: .75rem; margin-top: 1.25rem; padding: 1rem; font-weight: 700; }
.notice.success { background: color-mix(in oklch, var(--accent) 25%, white); }
.notice.error { background: color-mix(in oklch, var(--destructive) 18%, white); }

@media (min-width: 640px) {
  .event-facts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .section-link { display: inline; }
  .speaker-grid-compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 768px) {
  .primary-nav { display: flex; }
  .menu-toggle, .mobile-nav { display: none; }
  .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .full-speakers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ticket-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .session-row { grid-template-columns: 7.5rem 1fr auto; }
}

@media (min-width: 1024px) {
  .speaker-grid-compact { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}