/* WCWIF Conference — Santa Clara University branding
   Colors: https://www.scu.edu/umc/brand/ | Primary: SCU Red #B30738, Black #000000 */
:root {
  --color-bg: #f5f5f5;
  --color-surface: #fff;
  --color-text: #000000;
  --color-text-muted: #333;
  --color-accent: #B30738;
  --color-accent-hover: #8f062c;
  --color-border: #ddd;
  --font-heading: "Cormorant Garamond", Georgia, serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --radius: 6px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.logo:hover {
  color: var(--color-accent-hover);
}

.main-nav {
  display: flex;
  gap: var(--space-md);
}

.main-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.main-nav a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
}

@media (max-width: 700px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-surface);
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
  }

  .main-nav.is-open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }
}

/* Hero — SCU red */
.hero {
  padding: var(--space-xl) 0;
  text-align: center;
  background: var(--color-accent);
  color: #fff;
}

.hero-sponsor {
  font-size: 0.95rem;
  margin: 0 0 var(--space-sm);
  opacity: 0.95;
}

.hero-sponsor a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.hero-sponsor a:hover {
  color: rgba(255, 255, 255, 0.9);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  margin: 0 0 var(--space-xs);
  letter-spacing: 0.05em;
}

.hero-tagline {
  font-size: 1.1rem;
  opacity: 0.9;
  margin: 0 0 var(--space-sm);
}

.hero-date {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.1em;
}

/* Sections */
.section {
  padding: var(--space-xl) 0;
}

.section:nth-child(even) {
  background: var(--color-surface);
}

.section h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 0 var(--space-sm);
}

.section-intro {
  color: var(--color-text-muted);
  margin: 0 0 var(--space-lg);
  max-width: 60ch;
}

/* Agenda */
.agenda-content {
  display: grid;
  gap: var(--space-lg);
}

.agenda-day {
  background: var(--color-bg);
  padding: var(--space-md);
  border-radius: var(--radius);
  border-left: 4px solid var(--color-accent);
}

.agenda-day h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

/* Override .agenda-day h3 so section titles get proper top spacing (that rule sets margin-top: 0) */
.agenda-day h3.session-block-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-accent);
  margin: var(--space-xl) 0 var(--space-xs);
}

/* Less space above first section only (after Coffee and Rolls) */
.agenda-day h3.session-block-title:first-of-type {
  margin-top: var(--space-md);
}

.session-chair {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-sm);
  font-style: italic;
}

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

.agenda-list li {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.agenda-list .time {
  flex-shrink: 0;
  font-weight: 600;
  color: var(--color-accent);
  min-width: 10ch;
}

/* Content column: title and discussant share same indent; long titles wrap under title, not under time */
.agenda-item-content {
  min-width: 0;
  flex: 1;
}

.agenda-item-content .session {
  display: block;
}

.agenda-discussant {
  margin: var(--space-xs) 0 0;
  font-size: inherit;
  font-weight: inherit;
  font-style: normal;
  color: inherit;
}

.paper-link {
  font-size: 0.9em;
  color: var(--color-accent);
  text-decoration: none;
  white-space: nowrap;
}

.paper-link:hover {
  text-decoration: underline;
}

.agenda-sponsor {
  margin-top: var(--space-lg);
  font-size: 1rem;
  color: var(--color-text);
}

.agenda-sponsor a {
  color: var(--color-accent);
  font-weight: 500;
  text-decoration: none;
}

.agenda-sponsor a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.agenda-note {
  margin-top: var(--space-sm);
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.agenda-note a {
  color: var(--color-accent);
  font-weight: 500;
  text-decoration: none;
}

.agenda-note a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

/* Past agendas */
.past-years {
  display: grid;
  gap: var(--space-md);
}

.past-year-card {
  background: var(--color-surface);
  padding: var(--space-md);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.past-year-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin: 0 0 var(--space-xs);
  color: var(--color-accent);
}

.past-year-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.past-year-card a {
  display: inline-block;
  margin-top: var(--space-sm);
  color: var(--color-accent);
  font-weight: 500;
  text-decoration: none;
}

.past-year-card a:hover {
  text-decoration: underline;
}

/* Venue */
.venue-content {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .venue-content {
    grid-template-columns: 1fr 1fr;
  }
}

.venue-details h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.venue-details p {
  margin: 0 0 var(--space-sm);
  color: var(--color-text-muted);
}

.venue-details a {
  color: var(--color-accent);
  font-weight: 500;
  text-decoration: none;
}

.venue-details a:hover {
  text-decoration: underline;
}

.venue-map-figure {
  margin: 0;
}

.venue-map-wrap {
  width: 100%;
  aspect-ratio: 1;
  min-height: 320px;
  max-height: 480px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg);
}

.venue-pdf {
  width: 100%;
  height: 100%;
  min-height: 320px;
  display: block;
}

.venue-map-figure figcaption {
  margin-top: var(--space-sm);
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.map-open-link {
  margin: var(--space-sm) 0 0;
  font-size: 0.9rem;
}

.map-open-link a {
  color: var(--color-accent);
  font-weight: 500;
  text-decoration: none;
}

.map-open-link a:hover {
  text-decoration: underline;
}

/* Accommodation */
.accommodation-list {
  display: grid;
  gap: var(--space-md);
}

.accommodation-card {
  background: var(--color-surface);
  padding: var(--space-md);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.accommodation-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
}

.accommodation-card p {
  margin: 0 0 var(--space-xs);
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.accommodation-card a {
  display: inline-block;
  margin-top: var(--space-sm);
  color: var(--color-accent);
  font-weight: 500;
  text-decoration: none;
}

.accommodation-card a:hover {
  text-decoration: underline;
}

/* Footer — SCU red */
.site-footer {
  padding: var(--space-lg) 0;
  background: var(--color-accent);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

.footer-sponsor {
  margin-bottom: var(--space-sm);
}

.footer-sponsor a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-sponsor a:hover {
  color: rgba(255, 255, 255, 0.85);
}