:root {
  --navy: #0D2137;
  --navy-light: #16324f;
  --coral: #E26D5C;
  --coral-dark: #cf5a49;
  --gold: #C9A84C;
  --cream: #F5F2ED;
  --ink: #2C2C2C;
  --gray: #6b6b6b;
  --border: #E5E1D8;
  --white: #FFFFFF;
  --radius-lg: 16px;
  --radius-md: 12px;
  --shadow-card: 0 6px 20px rgba(13,33,55,0.08);
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, "system-ui", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--ink);
  background: var(--white);
}

a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }
img { max-width: 100%; display: block; }

h1, h2, h3 { margin: 0; line-height: 1.15; }
p { line-height: 1.6; margin: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--coral); color: var(--white); }
.btn-primary:hover { background: var(--coral-dark); box-shadow: 0 8px 20px rgba(226,109,92,0.35); }
.btn-outline { background: transparent; border-color: var(--navy); color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: var(--white); }
.btn-sm { padding: 10px 20px; font-size: 13px; }

/* ---------- HEADER ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  color: var(--navy);
  flex-shrink: 0;
}

.logo-mark {
  background: var(--navy);
  color: var(--coral);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 6px 8px;
  border-radius: 8px;
}
.logo-mark.small { padding: 5px 7px; font-size: 11px; }

.main-nav {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.main-nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  opacity: 0.75;
  transition: opacity 0.15s ease, color 0.15s ease;
}
.main-nav a:hover { opacity: 1; color: var(--coral-dark); }

.header-right { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 6px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
}

/* ---------- HERO ---------- */
.hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  padding: 100px 24px 90px;
  text-align: center;
}

.hero-inner { max-width: 760px; margin: 0 auto; }

.eyebrow {
  color: var(--coral);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin: 0 0 18px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 300;
  letter-spacing: -0.5px;
  margin-bottom: 22px;
}

.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero .btn-outline {
  border-color: rgba(255,255,255,0.4);
  color: var(--white);
}
.hero .btn-outline:hover { background: var(--white); color: var(--navy); }

/* ---------- TRUST STRIP ---------- */
.trust-strip {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 48px 24px;
  text-align: center;
}
.trust-item { display: flex; flex-direction: column; gap: 6px; }
.trust-num { font-size: 24px; font-weight: 800; color: var(--navy); }
.trust-label { font-size: 13px; color: var(--gray); text-transform: uppercase; letter-spacing: 0.5px; }

/* ---------- SECTIONS ---------- */
.section { padding: 90px 24px; }
.section-cream { background: var(--cream); }
.section-inner { max-width: 1080px; margin: 0 auto; }

.kicker {
  display: inline-block;
  color: var(--coral-dark);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section h2 {
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 700;
  color: var(--navy);
  max-width: 760px;
  margin-bottom: 20px;
}

.section-lede {
  font-size: 17px;
  color: var(--gray);
  max-width: 700px;
  margin-bottom: 48px;
}

.note {
  font-size: 13px;
  color: var(--gray);
  margin-top: 18px;
  font-style: italic;
}

/* ---------- ABOUT PILLARS ---------- */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.pillar-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  box-shadow: var(--shadow-card);
}
.pillar-icon { font-size: 28px; margin-bottom: 14px; }
.pillar-card h3 { font-size: 17px; color: var(--navy); margin-bottom: 8px; }
.pillar-card p { font-size: 14px; color: var(--gray); }

/* ---------- EVENT CARD ---------- */
.event-card {
  display: flex;
  gap: 28px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
}
.event-date {
  flex-shrink: 0;
  width: 110px;
  height: 110px;
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.event-month { font-size: 13px; font-weight: 700; letter-spacing: 1px; color: var(--coral); text-transform: uppercase; }
.event-day { font-size: 34px; font-weight: 800; }
.event-body h3 { font-size: 22px; color: var(--navy); margin-bottom: 10px; }
.event-meta { font-size: 14px; color: var(--gray); margin-bottom: 14px; }
.event-body p { color: var(--gray); margin-bottom: 22px; }

/* ---------- RECAP ---------- */
.recap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.recap-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  padding: 0 0 22px;
}
.recap-thumb {
  height: 84px;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  display: flex;
  align-items: center;
  justify-content: center;
}
.recap-thumb .recap-date {
  color: var(--white);
  font-size: 18px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.recap-card h3 { font-size: 17px; color: var(--navy); margin: 18px 22px 8px; }
.recap-card p { font-size: 14px; color: var(--gray); margin: 0 22px; }

/* ---------- ORGANIZERS ---------- */
.organizer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.organizer-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.organizer-card.placeholder { border-style: dashed; box-shadow: none; }
.organizer-photo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--coral);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  margin-bottom: 16px;
}
.organizer-card.placeholder .organizer-photo { background: var(--cream); color: var(--gray); border: 1px dashed var(--border); }
.organizer-card h3 { font-size: 17px; color: var(--navy); margin-bottom: 4px; }
.organizer-role { font-size: 13px; color: var(--coral-dark); font-weight: 700; margin-bottom: 12px; }
.organizer-card p { font-size: 14px; color: var(--gray); margin-bottom: 14px; }
.organizer-link { font-size: 13px; font-weight: 700; color: var(--navy); }
.organizer-link:hover { color: var(--coral-dark); }

/* ---------- SPONSORS ---------- */
.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.sponsor-slot {
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray);
  font-size: 13px;
  font-weight: 600;
}
.sponsor-slot.filled {
  border-style: solid;
  border-color: var(--border);
  color: var(--navy);
  font-size: 15px;
  font-weight: 700;
  box-shadow: var(--shadow-card);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.sponsor-slot.filled:hover {
  transform: translateY(-2px);
  border-color: var(--coral);
  box-shadow: 0 10px 24px rgba(13,33,55,0.12);
}
.sponsor-cta {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.sponsor-cta p { font-weight: 600; color: var(--navy); }

/* ---------- JOIN BANNER ---------- */
.join-banner {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  padding: 90px 24px;
  text-align: center;
}
.join-inner { max-width: 560px; margin: 0 auto; }
.join-banner h2 { font-size: clamp(26px, 3.5vw, 34px); font-weight: 700; margin-bottom: 14px; }
.join-banner p { color: rgba(255,255,255,0.75); margin-bottom: 32px; }

.join-inner > .btn-primary {
  margin-bottom: 24px;
}

.social-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}
.social-links a {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
  border-bottom: 1px solid rgba(255,255,255,0.3);
  padding-bottom: 2px;
}
.social-links a:hover { color: var(--white); border-color: var(--white); }

/* ---------- FOOTER ---------- */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.6);
  padding: 32px 24px;
}
.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--white);
  font-size: 14px;
}
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { font-size: 13px; }
.footer-links a:hover { color: var(--white); }
.footer-copy { font-size: 12px; width: 100%; text-align: center; margin-top: 8px; }

@media (min-width: 640px) {
  .footer-copy { width: auto; margin-top: 0; text-align: left; order: 3; }
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .pillar-grid { grid-template-columns: repeat(2, 1fr); }
  .recap-grid { grid-template-columns: repeat(2, 1fr); }
  .organizer-grid { grid-template-columns: repeat(2, 1fr); }
  .sponsor-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-strip { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 16px;
    display: none;
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .header-right .btn-sm { display: none; }
  .header-right .btn-sm.mobile-visible { display: inline-flex; }
}

@media (max-width: 600px) {
  .pillar-grid, .recap-grid, .organizer-grid, .sponsor-grid { grid-template-columns: 1fr; }
  .event-card { flex-direction: column; }
  .event-date { width: 100%; height: 80px; flex-direction: row; gap: 10px; }
  .join-form { flex-direction: column; }
  .hero { padding: 70px 20px 60px; }
  .section { padding: 60px 20px; }
}