:root {
  --colour-navy: #17212b;
  --colour-navy-light: #1e2d3d;
  --colour-gold: #c9a84c;
  --colour-gold-hover: #b8953d;
  --colour-ink: #17212b;
  --colour-muted: #5a6a7a;
  --colour-page: #f7f7f5;
  --colour-surface: #ffffff;
  --colour-line: #d9ddd9;
  --font-heading: Georgia, 'Times New Roman', serif;
  --font-body: Arial, Helvetica, sans-serif;
  --radius: 6px;
  --max-width: 1080px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--colour-page);
  color: var(--colour-ink);
  font-family: var(--font-body);
  line-height: 1.6;
}
a { color: var(--colour-navy); }
h1, h2, h3 { font-family: var(--font-heading); font-weight: 400; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem clamp(1rem, 4vw, 2rem);
  background: var(--colour-navy);
  border-bottom: 2px solid var(--colour-gold);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
}
.brand img {
  height: 44px;
  width: 44px;
  border-radius: 50%;
  object-fit: cover;
}
.site-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.site-nav a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--colour-gold);
}
.nav-toggle { display: none; }

/* Hero */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: flex-end;
  padding: clamp(4rem, 10vw, 8rem) clamp(1.5rem, 5vw, 3rem);
  color: #fff;
  background:
    linear-gradient(180deg, rgba(23,33,43,0.3) 0%, rgba(23,33,43,0.85) 100%),
    url("../img/hero-placeholder.png");
  background-size: cover;
  background-position: center;
}
.hero-inner {
  width: min(100%, var(--max-width));
  margin: 0 auto;
}
.hero .eyebrow {
  margin: 0 0 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  color: var(--colour-gold);
  font-family: var(--font-body);
}
.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  line-height: 1.05;
  color: #fff;
}
.hero h1 em {
  font-style: normal;
  color: var(--colour-gold);
}
.hero .lede {
  max-width: 600px;
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  line-height: 1.6;
  color: rgba(255,255,255,0.88);
  margin: 0 0 2rem;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  background: var(--colour-gold);
  color: var(--colour-navy);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: background 0.2s;
}
.hero-cta:hover { background: var(--colour-gold-hover); }
.hero-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-left: 1rem;
  transition: border-color 0.2s;
}
.hero-cta-secondary:hover { border-color: #fff; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* Content sections */
.section {
  padding: clamp(3rem, 8vw, 6rem) clamp(1rem, 4vw, 2rem);
}
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section-dark {
  background: var(--colour-navy);
  color: #fff;
}
.section h2 {
  margin: 0 0 1.5rem;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  line-height: 1.2;
}
.section p {
  max-width: 680px;
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--colour-muted);
}
.section-dark p { color: rgba(255,255,255,0.8); }

/* Values / pillars */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}
.pillar {
  text-align: center;
  padding: 2rem 1rem;
}
.pillar-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  color: var(--colour-gold);
}
.pillar h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  color: #fff;
  font-family: var(--font-body);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.pillar p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
}

/* Event cards */
.event-card {
  background: var(--colour-surface);
  border: 1px solid var(--colour-line);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
}
.event-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}
.event-card h3 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--colour-navy);
  font-family: var(--font-heading);
}
.event-status {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.status-coming_soon {
  background: #fff7e8;
  color: #a15c00;
  border: 1px solid #f2d19a;
}
.status-invitations_open {
  background: #eef8f2;
  color: #1f7a4d;
  border: 1px solid #b7dec9;
}
.status-invitation_only {
  background: #eef0f8;
  color: #2d4a8a;
  border: 1px solid #b7c4de;
}
.status-fully_allocated {
  background: #fff2f2;
  color: #a33a3a;
  border: 1px solid #efc3c3;
}
.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 1rem 0;
}
.event-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}
.event-meta-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--colour-muted);
  margin-bottom: 0.15rem;
}
.event-meta-value {
  font-size: 0.95rem;
  color: var(--colour-ink);
}
.event-description {
  margin: 1rem 0;
  color: var(--colour-muted);
  font-size: 1rem;
  line-height: 1.6;
}
.event-invitation-note {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--colour-navy);
  color: #fff;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

/* Gallery placeholder */
.gallery-placeholder {
  min-height: 220px;
  border: 1px dashed var(--colour-line);
  border-radius: var(--radius);
  background: #fbfbfa;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--colour-muted);
  font-style: italic;
}

/* Footer */
.site-footer {
  padding: 2rem clamp(1rem, 4vw, 2rem);
  border-top: 2px solid var(--colour-gold);
  background: var(--colour-navy);
  color: rgba(255,255,255,0.6);
  text-align: center;
  font-size: 0.85rem;
}
.site-footer a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
}
.site-footer a:hover { color: var(--colour-gold); }
.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
}

/* Buttons */
.button-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.65rem 0.95rem;
  background: var(--colour-gold);
  color: var(--colour-navy);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
  transition: background 0.2s;
}
.button-link:hover { background: var(--colour-gold-hover); }

/* Responsive */
/* Sponsors */
.sponsors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.5rem;
  align-items: center;
}
.sponsor-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: var(--colour-surface);
  border-radius: var(--radius);
  border: 1px solid var(--colour-line);
  transition: box-shadow 0.2s;
}
.sponsor-item:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.08); }
.sponsor-item img {
  max-width: 120px;
  max-height: 60px;
  object-fit: contain;
  filter: grayscale(0.3);
  transition: filter 0.2s;
}
.sponsor-item:hover img { filter: grayscale(0); }
.sponsor-item-large { padding: 2rem; }
.sponsor-item-large img { max-width: 160px; max-height: 80px; }
.sponsor-name {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--colour-muted);
  text-align: center;
}
.sponsor-placeholder {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--colour-muted);
  font-weight: 700;
}
.section-dark .sponsor-item {
  background: var(--colour-navy-light);
  border-color: rgba(255,255,255,0.1);
}
.section-dark .sponsor-placeholder { color: rgba(255,255,255,0.6); }

/* EOI Form */
.eoi-form {
  max-width: 700px;
  margin-top: 1.5rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
.form-group {
  display: flex;
  flex-direction: column;
}
.form-group-full {
  margin-bottom: 1rem;
}
.form-group label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--colour-ink);
  margin-bottom: 0.35rem;
}
.required { color: var(--colour-gold); }
.form-group input,
.form-group textarea,
.form-group select {
  min-height: 2.75rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--colour-line);
  border-radius: var(--radius);
  font: inherit;
  color: var(--colour-ink);
  background: #fff;
}
.form-group textarea { min-height: 5rem; resize: vertical; }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--colour-gold);
  box-shadow: 0 0 0 2px rgba(201,168,76,0.2);
}
.consent-label {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--colour-muted);
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}
.consent-label input { margin-top: 0.2rem; }
.eoi-success {
  max-width: 700px;
  padding: 2rem;
  background: #eef8f2;
  border: 1px solid #b7dec9;
  border-radius: var(--radius);
  margin-top: 1.5rem;
}
.eoi-error {
  max-width: 700px;
  padding: 1.5rem;
  background: #fff2f2;
  border: 1px solid #efc3c3;
  border-radius: var(--radius);
  margin-top: 1rem;
  color: var(--colour-bad, #a33a3a);
}

@media (max-width: 680px) {
  .form-row { grid-template-columns: 1fr; }
  .sponsors-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 740px) {
  .nav-toggle {
    display: inline-flex;
    min-height: 2.5rem;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: var(--radius);
    background: transparent;
    color: #fff;
    padding: 0.4rem 0.7rem;
    font: inherit;
    cursor: pointer;
  }
  .site-nav {
    display: none;
    position: absolute;
    inset: 100% 0 auto 0;
    padding: 1rem;
    background: var(--colour-navy);
    border-bottom: 2px solid var(--colour-gold);
    flex-direction: column;
    gap: 0.75rem;
  }
  .site-nav.open { display: flex; }
  .hero-cta-secondary { margin-left: 0; }
  .event-card-header { flex-direction: column; }
}