/* ==========================================================================
   Bay Games Tri - 50th Annual Website Stylesheet
   Theme: Minimalist Paper Backdrop & Editorial Print Aesthetic
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Amatic+SC:wght@400;700&family=Caveat:wght@400;500&family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,600&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --font-hand-tall: 'Amatic SC', 'Arial Narrow', sans-serif;
  --font-hand-script: 'Caveat', 'Segoe Print', cursive;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Paper Palette */
  --bg-page: #f7f4ee;
  --bg-page-warm: #f3efe6;
  --bg-card: rgba(255, 255, 255, 0.94);
  --bg-card-subtle: rgba(250, 247, 240, 0.92);
  --bg-tag: #ede7da;
  
  --ink-primary: #18181b;
  --ink-secondary: #52525b;
  --ink-muted: #71717a;
  --ink-faint: #a1a1aa;

  --accent-navy: #1e3a8a;
  --accent-marine: #0369a1;
  --accent-slate: #475569;
  --accent-amber: #3f7685;
  --accent-sage: #0f766e;

  --border-light: rgba(24, 24, 27, 0.08);
  --border-medium: rgba(24, 24, 27, 0.16);
  --border-dark: #18181b;

  --shadow-paper: 0 1px 3px rgba(0, 0, 0, 0.04), 0 8px 24px -4px rgba(24, 24, 27, 0.06);
  --shadow-card: 0 4px 24px -2px rgba(28, 25, 23, 0.07), 0 1px 3px rgba(28, 25, 23, 0.03);
  --shadow-lift: 0 12px 32px -4px rgba(28, 25, 23, 0.1), 0 2px 6px rgba(28, 25, 23, 0.04);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--ink-primary);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  position: relative;
  min-height: 100vh;
}

/* Subtle Organic Paper Texture Overlay */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Animated Cove Scene Backdrop */
#cove-canvas-wrap {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 1;
}

#cove-backdrop-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.canvas-paper-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  background: radial-gradient(circle at 50% 25%, rgba(247, 244, 238, 0.02) 0%, rgba(247, 244, 238, 0.35) 65%, rgba(247, 244, 238, 0.65) 100%);
  z-index: 1;
}

.content-layer {
  position: relative;
  z-index: 2;
  transition: opacity 0.3s ease;
}

/* Container */
.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Paper Layered Header */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 244, 238, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: all 0.2s ease;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.16em;
  white-space: nowrap;
  flex-shrink: 0;
  text-decoration: none;
  font-size: 2.8rem;
  color: #182b32;
  line-height: 1;
}

.brand-anniversary-number,
.hero-anniversary-number {
  font-family: var(--font-hand-tall);
  font-size: 1em;
  font-weight: 400;
  letter-spacing: 0;
}

.brand-tri,
.hero-tri {
  font-family: var(--font-sans);
  font-size: 0.68em;
  font-weight: 800;
  letter-spacing: -0.045em;
}

.brand-name,
.hero-event-name {
  font-family: var(--font-hand-script);
  font-size: 0.52em;
  font-weight: 400;
  letter-spacing: -0.025em;
}

.brand-anniversary-number sup,
.hero-anniversary-number sup {
  position: relative;
  top: -2em;
  margin-left: 0.04em;
  font-family: var(--font-hand-script);
  font-size: 0.32em;
  line-height: 0;
  vertical-align: baseline;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 12px;
  list-style: none;
}

.nav-menu a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-secondary);
  transition: all 0.15s ease;
  letter-spacing: 0.2px;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
}

.nav-menu a:hover {
  color: var(--ink-primary);
  background: rgba(24, 24, 27, 0.05);
}

.nav-menu a.active {
  color: var(--ink-primary);
  background: rgba(24, 24, 27, 0.09);
  font-weight: 700;
}

.btn-header-cta {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  color: #ffffff;
  background: var(--ink-primary);
  padding: 8px 18px;
  border-radius: 6px;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-header-cta:hover {
  background: #27272a;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--ink-primary);
  cursor: pointer;
}

/* Tab Navigation System */
.tab-content-container {
  padding: 30px 0 60px;
  min-height: calc(100vh - 170px);
}

.tab-page {
  display: none;
  animation: tabFadeIn 0.22s ease-out forwards;
}

.tab-page.active {
  display: block;
}

@keyframes tabFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Compact Hero Card on Overview Tab (Lets Background Shine!) */
.hero-compact-wrap {
  min-height: calc(100vh - 240px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: 24px;
}

.hero-compact-card {
  max-width: 580px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 36px 40px;
  box-shadow: var(--shadow-lift);
  position: relative;
  overflow: hidden;
}

.hero-compact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-navy), var(--accent-marine), var(--accent-slate), var(--accent-sage));
}

.hero-compact-title {
  display: flex;
  align-items: baseline;
  gap: 0.16em;
  white-space: nowrap;
  font-size: clamp(2.65rem, 10vw, 6rem);
  font-weight: 400;
  line-height: 1.1;
  color: #182b32;
  margin-bottom: 20px;
}

.hero-compact-title span {
  display: inline;
  line-height: inherit;
}

.hero-compact-lead {
  font-size: 1.05rem;
  color: var(--ink-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

/* Paper Hero */
.hero-section {
  padding: 80px 0 60px;
}

.hero-paper-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 56px 48px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.hero-paper-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-navy), var(--accent-marine), var(--accent-slate), var(--accent-sage));
}

.hero-date-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: #475569;
  text-transform: none;
  letter-spacing: 0;
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.8rem;
  line-height: 1.08;
  font-weight: 600;
  letter-spacing: -1px;
  color: var(--ink-primary);
  margin-bottom: 20px;
}

.hero-title em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent-navy);
}

.hero-lead {
  font-size: 1.25rem;
  color: var(--ink-secondary);
  max-width: 720px;
  line-height: 1.6;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 44px;
}

.btn-primary-paper {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  background: var(--ink-primary);
  color: #ffffff;
  padding: 13px 26px;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  transition: all 0.2s ease;
}

.btn-primary-paper:hover {
  background: #27272a;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.btn-secondary-paper {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  background: var(--bg-card-subtle);
  color: var(--ink-primary);
  border: 1px solid var(--border-medium);
  padding: 13px 24px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.btn-secondary-paper:hover {
  background: #ffffff;
  border-color: var(--ink-primary);
  transform: translateY(-1px);
}

/* 4 Course Highlight Cards */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.course-paper-card {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.2s ease;
}

.course-paper-card:hover {
  background: #ffffff;
  border-color: var(--border-medium);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.course-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.course-tag.row { color: var(--accent-navy); }
.course-tag.swim { color: var(--accent-marine); }
.course-tag.run { color: var(--accent-slate); }
.course-tag.handball { color: var(--accent-sage); }

.course-name {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--ink-primary);
  margin-bottom: 6px;
  line-height: 1.2;
}

.course-route {
  font-size: 0.88rem;
  color: var(--ink-secondary);
  line-height: 1.4;
  margin-bottom: 12px;
}

.course-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-muted);
  border-top: 1px dashed var(--border-medium);
  padding-top: 8px;
}

/* Section Shared */
.section {
  padding: 70px 0;
}

.section-head {
  margin-bottom: 36px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  font-weight: 600;
  letter-spacing: -0.5px;
  color: var(--ink-primary);
}

.section-lead {
  font-size: 1.05rem;
  color: var(--ink-secondary);
  max-width: 680px;
  margin-top: 6px;
}

/* Schedule Section */
.commissioner-memo {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--accent-navy);
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 36px;
  box-shadow: var(--shadow-paper);
}

.memo-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-navy);
  font-weight: 700;
  margin-bottom: 4px;
}

.memo-text {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--ink-primary);
  line-height: 1.5;
}

/* Schedule Paper List */
.schedule-paper-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.schedule-block {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.schedule-block-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 14px;
  margin-bottom: 16px;
}

.block-title-group {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.block-stage {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-slate);
  background: var(--bg-tag);
  padding: 2px 8px;
  border-radius: 4px;
}

.block-title {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.block-route-highlight {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.schedule-items {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.schedule-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  align-items: baseline;
  font-size: 0.95rem;
}

.schedule-time {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-secondary);
}

.schedule-details {
  color: var(--ink-primary);
  line-height: 1.5;
}

.schedule-subnote {
  color: var(--ink-secondary);
  font-size: 0.88rem;
  margin-top: 3px;
}

.schedule-highlight {
  color: var(--accent-slate);
  font-weight: 600;
}

.route-callout {
  margin-top: 14px;
  padding: 12px 16px;
  background: var(--bg-card-subtle);
  border-radius: 6px;
  font-size: 0.88rem;
  color: var(--ink-secondary);
  border-left: 2px solid var(--border-medium);
}

/* Register Section */
.register-paper-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 32px;
  box-shadow: var(--shadow-card);
  max-width: 440px;
  margin: 0 auto;
  text-align: center;
}

.register-question {
  margin-top: 18px;
  color: var(--ink-secondary);
  font-size: 0.95rem;
}

.btn-block-form {
  display: block;
  width: 100%;
  text-align: center;
  text-decoration: none;
  background: var(--ink-primary);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.btn-block-form:hover {
  background: #27272a;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

/* FAQ Section */
.faq-paper-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-paper-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-paper);
}

.faq-btn {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.faq-btn:hover {
  color: var(--accent-marine);
}

.faq-icon {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--ink-muted);
  transition: transform 0.2s ease;
}

.faq-paper-item.open .faq-icon {
  transform: rotate(45deg);
  color: var(--accent-slate);
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease, padding 0.25s ease;
  padding: 0 24px;
  color: var(--ink-secondary);
  font-size: 0.98rem;
  line-height: 1.6;
}

.faq-paper-item.open .faq-body {
  max-height: 400px;
  padding: 0 24px 22px;
}

.faq-quote {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-style: italic;
  color: var(--accent-navy);
  margin-bottom: 8px;
}

/* Sponsors Section */
.sponsor-paper-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 40px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 36px;
  align-items: center;
}

.sponsor-logo-container {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sponsor-logo-container img {
  max-width: 100%;
  max-height: 60px;
  object-fit: contain;
}

.sponsor-info h3 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--ink-primary);
  margin-bottom: 8px;
}

.sponsor-info p {
  color: var(--ink-secondary);
  font-size: 0.98rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.sponsor-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-slate);
  text-decoration: none;
}

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

/* Footer */
footer.site-footer {
  border-top: 1px solid var(--border-light);
  padding: 48px 0 32px;
  margin-top: 80px;
  background: var(--bg-page-warm);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.footer-quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--ink-secondary);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sponsor-paper-box {
    grid-template-columns: 1fr;
  }

  .hero-paper-card {
    padding: 36px 24px;
  }

  .hero-title {
    font-size: 2.8rem;
  }
}

@media (max-width: 900px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background: var(--bg-page);
    flex-direction: column;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    gap: 16px;
  }

  .nav-menu.open {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .courses-grid {
    grid-template-columns: 1fr;
  }

  .schedule-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .schedule-time {
    color: var(--accent-slate);
  }
}

@media (max-width: 400px) {
  .site-header .container {
    padding: 0 12px;
  }

  .brand-link {
    gap: 4px;
  }

  .btn-header-cta {
    padding: 8px 10px;
  }
}

@media (max-width: 640px) {
  .brand-link { font-size: clamp(2.4rem, 8vw, 2.8rem); }
  .hero-compact-card { padding: 28px 24px; }
  .site-header .btn-header-cta { display: none; }
}