:root {
  --purple-dark: #5f0472;
  --purple-primary: #67188f;
  --purple-mid: #c5b0cd;
  --purple-light: #d2c6dc;
  --purple-pale: #f3e4f9;
  --gray-light: #f7f7f7;
  --gray-bg: #f1f1f1;
  --text-dark: #1a1a1a;
  --text-faded: #555;
  --white: #ffffff;
  --nav-height: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  z-index: 100;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

.nav-logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--purple-dark);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav-logo span { color: var(--purple-primary); }

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dark);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--purple-primary); }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  transition: all 0.3s;
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-image: url('../images/1_1766967297_DSC_0050_1200x800-1024x683.jpg');
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(127, 125, 123, 0.7);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
  padding: 2rem;
  max-width: 800px;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.hero-content h2 {
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 1rem;
  opacity: 0.9;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  padding: 16px 40px;
  border-radius: 100px;
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.2s;
  cursor: pointer;
  border: none;
}

.btn:hover { opacity: 0.85; transform: translateY(-1px); }

.btn-purple { background: var(--purple-mid); color: white; }
.btn-dark { background: var(--purple-dark); color: white; }
.btn-outline {
  background: transparent;
  border: 2px solid var(--purple-dark);
  color: var(--purple-dark);
}

/* ── SECTIONS ── */
section { padding: 5rem 2rem; }

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-tag {
  display: inline-block;
  background: var(--purple-primary);
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-faded);
  max-width: 600px;
  margin: 0 auto 3rem;
}

.text-center { text-align: center; }

/* ── CARDS GRID ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--purple-pale);
  border-radius: 16px;
  padding: 2rem;
  transition: transform 0.2s;
}

.card:hover { transform: translateY(-3px); }

.card-gray { background: var(--gray-light); }

.card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 1.2rem;
}

.card-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--purple-primary);
  margin-bottom: 0.25rem;
}

.card-role {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.card-bio {
  font-size: 0.875rem;
  color: var(--text-faded);
}

/* ── FEATURES ROW ── */
.features-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.feature-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-item p { font-size: 0.9rem; color: var(--text-faded); }

.feature-item img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 1rem;
}

/* ── TIMELINE ── */
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  margin-top: 2rem;
}

.timeline-card {
  background: var(--purple-pale);
  padding: 1.5rem;
}

.timeline-card.gray { background: var(--gray-bg); }

.timeline-card:first-child { border-radius: 20px 0 0 0; }
.timeline-card:nth-child(3) { border-radius: 0 20px 0 0; }
.timeline-card:nth-child(4) { border-radius: 0 0 0 20px; }
.timeline-card:last-child { border-radius: 0 0 20px 0; }

.timeline-meet {
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--purple-primary);
  margin-bottom: 0.4rem;
}

.timeline-venue {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.timeline-card details {
  margin-bottom: 0.5rem;
}

.timeline-card summary {
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 0;
  color: var(--text-dark);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.timeline-card summary::before {
  content: '▶';
  font-size: 0.6rem;
  transition: transform 0.2s;
}

.timeline-card details[open] summary::before { transform: rotate(90deg); }

.timeline-card details p {
  font-size: 0.82rem;
  color: var(--text-faded);
  margin-top: 0.4rem;
  padding-left: 1rem;
  line-height: 1.5;
}

/* ── FAQ ── */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.faq-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.faq-item p, .faq-item ul {
  font-size: 0.9rem;
  color: var(--text-faded);
}

.faq-item ul { padding-left: 1.2rem; }

/* ── FOOTER ── */
footer {
  background: var(--purple-light);
  padding: 4rem 2rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 2fr;
  gap: 2rem;
  align-items: start;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--purple-dark);
  margin-bottom: 0.5rem;
}

.footer-col p, .footer-col a {
  font-size: 0.9rem;
  color: var(--purple-dark);
  text-decoration: none;
}

.social-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.social-links a {
  color: var(--purple-dark);
  font-size: 0.85rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: opacity 0.2s;
}

.social-links a:hover { opacity: 0.7; }

.footer-right {
  text-align: right;
}

.footer-brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--purple-dark);
  margin-bottom: 0.5rem;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--purple-dark);
  opacity: 0.8;
}

/* ── PAGE HERO (non-home) ── */
.page-hero {
  background: var(--purple-primary);
  color: white;
  text-align: center;
  padding: 7rem 2rem 4rem;
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.page-hero p {
  font-size: 1.1rem;
  opacity: 0.85;
  max-width: 560px;
  margin: 0 auto;
}

/* ── ABOUT TEAM SECTION ── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

/* ── AWARDS ── */
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
}

.award-card {
  background: var(--purple-pale);
  border-radius: 12px;
  padding: 1.5rem;
}

.award-card.gray { background: var(--gray-light); }

.award-name {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  line-height: 1.3;
}

.award-event {
  font-size: 0.8rem;
  color: var(--text-faded);
}

.award-season {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--purple-primary);
  margin: 2rem 0 1rem;
}

/* ── CONTACT ── */
.contact-form-wrap {
  background: white;
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  max-width: 700px;
  margin: 2rem auto 0;
}

.form-group { margin-bottom: 1.5rem; }

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(0,0,0,0.15);
  border-radius: 10px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-dark);
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--purple-primary);
  box-shadow: 0 0 0 3px rgba(103, 24, 143, 0.1);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-success {
  display: none;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 10px;
  padding: 1rem 1.5rem;
  margin-top: 1rem;
  font-weight: 500;
}

/* ── MENTORSHIP PAGE ── */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: center;
}

.split-section .split-text {
  padding: 4rem;
}

.split-section .split-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.split-section.reverse .split-text { order: 2; }
.split-section.reverse .split-img { order: 1; }

.rounded-tr { border-radius: 0 200px 0 0; }
.rounded-tl { border-radius: 200px 0 0 0; }
.rounded-br { border-radius: 0 0 200px 0; }

/* ── SPONSORSHIP TIERS ── */
.tier-card {
  border: 2px solid var(--purple-pale);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
}

.tier-card.featured {
  border-color: var(--purple-primary);
  background: var(--purple-pale);
}

.tier-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--purple-primary);
  margin-bottom: 1.5rem;
}

.tier-benefits {
  list-style: none;
  text-align: left;
  font-size: 0.9rem;
  color: var(--text-faded);
}

.tier-benefits li {
  padding: 0.4rem 0;
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}

.tier-benefits li::before {
  content: '✓';
  color: var(--purple-primary);
  font-weight: 700;
  flex-shrink: 0;
}

.sponsors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.sponsor-card {
  background: var(--gray-light);
  border-radius: 12px;
  overflow: hidden;
  text-align: center;
  border: 1px solid rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
}

.sponsor-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
}

.sponsor-card span {
  display: block;
  padding: 0.75rem;
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--text-dark);
}

/* ── UTILITIES ── */
.bg-white { background: white; }
.bg-pale { background: var(--purple-pale); }
.bg-gray { background: var(--gray-light); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .timeline-grid {
    grid-template-columns: 1fr 1fr;
  }

  .split-section {
    grid-template-columns: 1fr;
  }
  .split-section .split-text { padding: 2.5rem 1.5rem; }
  .split-section.reverse .split-text { order: 1; }
  .split-section.reverse .split-img { order: 2; }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-right { text-align: left; }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: white;
    flex-direction: column;
    padding: 1.5rem 2rem;
    gap: 1.25rem;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  }

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

  .nav-hamburger { display: flex; }

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

  .timeline-card:first-child { border-radius: 16px 16px 0 0; }
  .timeline-card:nth-child(3) { border-radius: 0; }
  .timeline-card:nth-child(4) { border-radius: 0; }
  .timeline-card:last-child { border-radius: 0 0 16px 16px; }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  section { padding: 3.5rem 1.25rem; }

  .split-section .split-img { display: none; }
}