:root {
  /* Dark hero surface */
  --bg-dark: #0a0e1a;
  --bg-dark-2: #0d1326;

  /* Light content surfaces */
  --bg: #ffffff;
  --bg-alt: #f7f8fc;
  --card: #ffffff;

  --text: #101223;
  --text-light: #ffffff;
  --text-muted: #6b7280;
  --text-muted-light: #b7bfe0;

  --border: #e7e9f3;
  --border-dark: #232a45;

  /* Brand gradient (blue -> purple) */
  --grad-start: #3b5bfd;
  --grad-end: #9333ea;
  --gradient: linear-gradient(90deg, var(--grad-start), var(--grad-end));
  --gradient-diag: linear-gradient(135deg, var(--grad-start), var(--grad-end));

  --blue: #2f6dfb;
  --purple: #9333ea;
  --green: #16a34a;
  --amber: #f5a524;
  --teal: #22d3ee;
  --orange: #ff7a3d;

  --radius: 14px;
  --radius-sm: 10px;
  --max-width: 1200px;
  --shadow: 0 10px 30px rgba(20, 24, 50, 0.08);
  --shadow-card: 0 1px 2px rgba(16, 18, 35, 0.04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.announcement-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 54px;
  padding: 10px 24px;
  background: linear-gradient(90deg, #2878e8, #2454d7);
  color: #ffeb3b;
  font-size: 1.05rem;
  font-weight: 700;
  text-align: center;
}
.announcement-icon { font-size: 1.35rem; line-height: 1; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 12px; font-weight: 800; }
h2 { font-size: 2.25rem; text-align: center; }
p { color: var(--text-muted); margin: 0 0 12px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 900;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand .brand-x { color: var(--purple); }
.brand .brand-icon { color: var(--orange); }

.main-nav { display: flex; gap: 26px; align-items: center; flex-wrap: wrap; }
.main-nav a {
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  opacity: 0.85;
}
.main-nav a:hover { opacity: 1; color: var(--purple); }

.header-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }

.btn-gradient {
  background: var(--gradient);
  color: var(--text-light);
  box-shadow: 0 6px 18px rgba(59, 91, 253, 0.35);
}
.btn-primary { background: var(--blue); color: var(--text-light); }
.btn-light { background: var(--bg); color: var(--text); border-color: var(--border); }
.btn-ghost { border-color: var(--border-dark); color: var(--text-light); background: transparent; }
.btn-outline { border-color: var(--border); color: var(--text); background: transparent; }
.btn-sm { padding: 9px 16px; font-size: 0.85rem; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 126px);
  display: flex;
  align-items: center;
  padding: 88px 0 64px;
  background: radial-gradient(circle at 15% 20%, rgba(59, 91, 253, 0.25), transparent 45%),
              radial-gradient(circle at 85% 60%, rgba(147, 51, 234, 0.22), transparent 50%),
              var(--bg-dark);
  color: var(--text-light);
  border-bottom: 1px solid var(--border-dark);
}
.hero-video,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-video {
  inset: 0;
  z-index: 0;
  width: 100%;
  object-fit: cover;
  opacity: 0.58;
}
.hero-overlay {
  z-index: 1;
  background: linear-gradient(90deg, rgba(10, 14, 26, 0.94), rgba(10, 14, 26, 0.7));
}
.hero .container {
  position: relative;
  z-index: 2;
  width: calc(100% - 48px);
  max-width: var(--max-width);
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.9fr);
  gap: 64px;
  align-items: center;
}
.hero-copy { min-width: 0; }
.hero-side { min-width: 0; }
.hero-graphic {
  position: absolute;
  right: -40px;
  bottom: 0;
  width: 46%;
  max-width: 560px;
  z-index: 1;
  opacity: 0.95;
  pointer-events: none;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--teal);
  font-weight: 700;
}
.hero h1 {
  font-size: 3.1rem;
  margin: 10px 0 14px;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.02em;
}
.hero-tagline { font-size: 1.25rem; color: var(--text-light); font-weight: 500; }
.hero-description { max-width: 620px; color: var(--text-muted-light); }

.hero-meta {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin: 28px 0 8px;
  font-size: 0.95rem;
  color: var(--text-muted-light);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }

/* Countdown */
.countdown-label {
  text-align: left;
  font-weight: 700;
  margin: 28px 0 12px;
  color: var(--text-light);
}
.countdown {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.hero-side .countdown { justify-content: flex-start; }
.countdown-box {
  min-width: 92px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-sm);
  padding: 12px 15px;
  text-align: center;
  backdrop-filter: blur(8px);
}
.countdown-number {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--teal);
  display: block;
}
.countdown-unit {
  font-size: 0.78rem;
  color: var(--text-muted-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-actions { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero stat strip */
.stat-strip {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 16px;
  max-width: 560px;
}
.hero-side .stat-strip {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: none;
  margin-top: 28px;
}
.hero-side .stat-box { padding: 16px 10px; }
.hero-side .stat-box .stat-number { font-size: 1.35rem; }
.stat-box {
  border-radius: var(--radius-sm);
  padding: 20px 16px;
  text-align: center;
  color: var(--text-light);
}
.stat-box .stat-number { font-size: 1.6rem; font-weight: 800; display: block; }
.stat-box .stat-label { font-size: 0.82rem; opacity: 0.9; }
.stat-box.stat-blue { background: linear-gradient(135deg, #2f6dfb, #1e4fd1); }
.stat-box.stat-purple { background: linear-gradient(135deg, #a855f7, #7e22ce); }
.stat-box.stat-green { background: linear-gradient(135deg, #22c55e, #15803d); }
.stat-box.stat-amber { background: linear-gradient(135deg, #fbbf24, #d97706); }

/* ---------- Sections (light) ---------- */
section { padding: 26px 0; }
section.alt { background: var(--bg-alt); }
.section-lead {
  max-width: 640px;
  margin: 0 auto 40px;
  text-align: center;
}
.section-lead p { text-align: center; }

/* ---------- Hackathon overview ---------- */
.hackathon-overview { padding-top: 72px; }
.hackathon-overview .container { max-width: 80rem; }
.overview-heading { max-width: 760px; margin-bottom: 38px; }
.overview-heading .eyebrow,
.section-heading-left .eyebrow {
  margin-bottom: 10px;
  color: var(--blue);
}
.overview-heading h1 {
  max-width: 680px;
  font-size: 3rem;
  color: var(--text);
}
.overview-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(240px, 0.75fr);
  gap: 52px;
  align-items: start;
}
.overview-copy {
  max-width: none;
  padding-left: 22px;
  border-left: 4px solid var(--blue);
}
.overview-copy h2,
.section-heading-left h2 {
  margin-bottom: 20px;
  text-align: left;
}
.overview-copy p { margin-bottom: 18px; }
.overview-copy p:last-child { margin-bottom: 0; }
.overview-note {
  padding: 30px 28px;
  border: 1px solid #cfe0ff;
  border-radius: var(--radius);
  background: linear-gradient(145deg, #eaf1ff, #ffffff 75%);
  box-shadow: 0 12px 28px rgba(47, 109, 251, 0.1);
}
.overview-note-label {
  display: block;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.overview-note strong {
  display: block;
  margin-bottom: 12px;
  color: var(--text);
  font-size: 1.55rem;
  line-height: 1.2;
}
.overview-note p { margin: 0; }
.objectives { padding-top: 76px; }
.section-heading-left { max-width: 680px; margin-bottom: 34px; }
.section-heading-left .section-lead { margin: 0; text-align: left; }
.objective-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: objective;
}
.objective-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  min-height: 78px;
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  box-shadow: var(--shadow-card);
  color: var(--text);
  font-weight: 650;
  counter-increment: objective;
}
.objective-list li::before {
  content: counter(objective, decimal-leading-zero);
  flex: 0 0 auto;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

/* ---------- Card grid (Mission/Vision/Partnership style) ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
.card-icon.icon-blue { background: #e8efff; color: var(--blue); }
.card-icon.icon-purple { background: #f4e8ff; color: var(--purple); }
.card-icon.icon-green { background: #e6f7ec; color: var(--green); }
.card-icon.icon-teal { background: #e3fbff; color: var(--teal); }
.card-icon.icon-orange { background: #fff1e8; color: var(--orange); }

.card h3 { font-size: 1.15rem; }
.card.card-blue { border-top: 3px solid var(--blue); }
.card.card-purple { border-top: 3px solid var(--purple); }
.card.card-green { border-top: 3px solid var(--green); }

/* Tinted partner cards */
.tint-card {
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
}
.tint-card.tint-orange { background: linear-gradient(160deg, #fff3e9, #fff9f3); }
.tint-card.tint-blue { background: linear-gradient(160deg, #eaf1ff, #f4f8ff); }
.tint-card.tint-green { background: linear-gradient(160deg, #e8f8ee, #f2fbf5); }
.tint-card .partner-logo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--bg);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.tint-card h3 { font-size: 1.05rem; margin-bottom: 2px; }
.tint-card .partner-role {
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 8px;
}
.tint-card.tint-orange .partner-role { color: var(--orange); }
.tint-card.tint-blue .partner-role { color: var(--blue); }
.tint-card.tint-green .partner-role { color: var(--green); }

/* Partner logo row (small circles) */
.partner-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  align-items: center;
}
.partner-badge {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  background: var(--bg);
}

/* ---------- Theme cards (with icon + tags) ---------- */
.theme-card {
  position: relative;
  min-height: 156px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px 24px;
  text-align: left;
  box-shadow: 0 8px 22px rgba(20, 24, 50, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.tracks .card-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  counter-reset: focus-area;
}
.theme-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: var(--card-accent, var(--blue));
}
.theme-card::after {
  content: counter(focus-area, decimal-leading-zero);
  position: absolute;
  top: 20px;
  right: 22px;
  color: var(--card-accent, var(--blue));
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.theme-card { counter-increment: focus-area; }
.theme-card:nth-child(4n + 1) { --card-accent: var(--blue); }
.theme-card:nth-child(4n + 2) { --card-accent: var(--green); }
.theme-card:nth-child(4n + 3) { --card-accent: var(--orange); }
.theme-card:nth-child(4n) { --card-accent: var(--purple); }
.theme-card:hover {
  border-color: var(--card-accent);
  box-shadow: 0 14px 28px rgba(20, 24, 50, 0.11);
  transform: translateY(-4px);
}
.theme-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}
.theme-icon.icon-teal { background: #e3fbff; color: #0ea5c4; }
.theme-icon.icon-green { background: #e6f7ec; color: var(--green); }
.theme-icon.icon-orange { background: #fff1e8; color: var(--orange); }
.theme-card h3 {
  max-width: 245px;
  margin: 0;
  color: #25283a;
  font-size: 1.08rem;
  font-weight: 600;
}
.theme-card p { font-size: 0.92rem; }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 16px;
}
.tag {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
}

/* ---------- CTA banner ---------- */
.cta-banner {
  background: var(--gradient-diag);
  border-radius: 20px;
  padding: 48px 40px;
  text-align: center;
  color: var(--text-light);
}
.cta-banner h2 { color: var(--text-light); }
.cta-banner p { color: rgba(255, 255, 255, 0.9); max-width: 560px; margin: 0 auto 24px; text-align: center; }
.cta-banner .btn-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Flow / Stage cards ---------- */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.stage-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
}
.stage-header {
  background: var(--gradient);
  color: var(--text-light);
  padding: 18px 22px;
  font-weight: 700;
}
.stage-body { padding: 22px; }
.stage-body h4 { margin: 0 0 8px; font-size: 1.05rem; }
.stage-body p { font-size: 0.9rem; margin: 0; }

/* ---------- Timeline (kept from base, restyled) ---------- */
.timeline-list { list-style: none; padding: 0; margin: 0; border-left: 2px solid var(--border); }
.timeline-list li { padding: 0 0 28px 24px; position: relative; }
.timeline-list li::before {
  content: "";
  position: absolute;
  left: -7px; top: 4px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--purple);
}
.timeline-date { display: block; color: var(--purple); font-weight: 700; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; }
.timeline-title { display: block; font-size: 1.1rem; font-weight: 700; margin: 4px 0; }

.advisory-section {
  position: relative;
  padding: 32px 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248, 250, 255, 0.95));
}

.advisory-header {
  margin-bottom: 36px;
  text-align: center;
}

.advisory-header p {
  margin: 0 0 12px;
}

.advisory-header h2 {
  margin: 0;
  font-size: 2.2rem;
  letter-spacing: -0.04em;
}

.advisory-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.advisory-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 28px;
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.06);
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.advisory-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, currentColor, transparent);
  opacity: 0.4;
}

.advisory-card::after {
  content: "";
  position: absolute;
  bottom: -40%;
  right: -40%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.9), transparent);
  pointer-events: none;
}

.advisory-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 28px 56px rgba(15, 23, 42, 0.1);
  border-color: rgba(148, 163, 184, 0.3);
}

.advisory-card-primary { --card-accent: #4f46e5; }
.advisory-card-info { --card-accent: #0ea5e9; }
.advisory-card-warm { --card-accent: #f97316; }
.advisory-card-success { --card-accent: #10b981; }

.advisory-card-primary::before { background: linear-gradient(90deg, #4f46e5, #7c3aed, #4f46e5); }
.advisory-card-info::before { background: linear-gradient(90deg, #0ea5e9, #14b8a6, #0ea5e9); }
.advisory-card-warm::before { background: linear-gradient(90deg, #f97316, #ef4444, #f97316); }
.advisory-card-success::before { background: linear-gradient(90deg, #10b981, #14b8a6, #10b981); }

.advisory-card h3 {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.advisory-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.9rem;
}

.mentor-photo { width: 88px; height: 88px; border-radius: 50%; object-fit: cover; margin: 0 auto 16px; display: block; }
.mentor-photo-placeholder { background: var(--gradient-diag); }

@media (max-width: 960px) {
  .advisory-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .advisory-header h2 {
    font-size: 1.9rem;
  }
}

@media (max-width: 560px) {
  .advisory-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .advisory-card {
    padding: 22px;
  }

  .advisory-header h2 {
    font-size: 1.6rem;
  }
}

/* ---------- Register / Form ---------- */
.register-inner { display: block; text-align: left; }
.register-form label { display: block; margin-bottom: 6px; font-size: 0.9rem; color: var(--text-muted); }
.form-input, .register-form input, .register-form select, .register-form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 0.95rem;
}
.form-input:focus, .register-form input:focus, .register-form textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59, 91, 253, 0.15);
}
.form-message { background: #eef3ff; border: 1px solid var(--blue); padding: 10px 14px; border-radius: var(--radius-sm); margin-bottom: 16px; color: var(--text); }

/* ---------- FAQ ---------- */
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 12px;
}
.faq-item summary { cursor: pointer; font-weight: 700; }
.faq-item p { margin: 12px 0 0; }

/* ---------- Contact ---------- */
.contact-card h3 { margin-bottom: 4px; }
.contact-role { color: var(--purple); font-weight: 600; }
.directions-note { margin-top: 32px; }

/* ---------- Footer ---------- */
.site-footer {
  padding: 44px 0;
  background: var(--bg-dark);
  color: var(--text-muted-light);
}
.footer-inner { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 16px; }
.footer-note { color: var(--text-muted-light); font-size: 0.85rem; }
.site-footer .brand { color: var(--text-light); margin-bottom: 6px; }

.process {
  position: relative;
  background:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,0.8), rgba(244, 247, 255, 0.95));
}

.process h2 {
  margin-bottom: 10px;
  text-align: left;
  letter-spacing: -0.04em;
}

.process .section-lead {
  max-width: none;
  margin: 0 0 30px;
  text-align: left;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.step {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 220px;
  padding: 26px 22px 22px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.05);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.step:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.step::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6, #14b8a6);
}

.step h3 {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  font-size: 1.15rem;
  font-weight: 800;
}

.step h3::before {
  content: attr(data-step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  box-shadow: 0 12px 24px rgba(59, 91, 253, 0.25);
}

.step p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

.step:nth-child(2)::before {
  background: linear-gradient(90deg, #10b981, #22d3ee, #3b82f6);
}

.step:nth-child(3)::before {
  background: linear-gradient(90deg, #f59e0b, #f97316, #ec4899);
}

.step:nth-child(2) h3::before {
  background: linear-gradient(135deg, #10b981, #22d3ee);
}

.step:nth-child(3) h3::before {
  background: linear-gradient(135deg, #f59e0b, #f97316);
}

.step-number {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--gradient);
  color: var(--text-light);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  margin-bottom: 14px;
}

.rewards {
  position: relative;
  background:
    radial-gradient(circle at top left, rgba(99, 102, 241, 0.14), transparent 34%),
    radial-gradient(circle at bottom right, rgba(14, 165, 233, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(15, 23, 42, 0.025), rgba(59, 91, 253, 0.04));
}

.rewards::before {
  content: "";
  position: absolute;
  inset: 32px 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.35), transparent);
}

.rewards-wrap {
  position: relative;
  max-width: 84rem;
}

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 30px;
}

.section-heading-row .eyebrow {
  margin-bottom: 10px;
}

.section-heading-row h2 {
  margin: 0;
  text-align: left;
  letter-spacing: -0.04em;
}

.reward-highlight-badge {
  position: relative;
  min-width: 190px;
  padding: 18px 20px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(7, 11, 23, 0.96), rgba(37, 54, 109, 0.96) 46%, rgba(79, 70, 229, 0.92));
  border: 1px solid rgba(148, 163, 184, 0.35);
  color: var(--text-light);
  text-align: center;
  box-shadow: 0 18px 38px rgba(31, 41, 55, 0.28);
  overflow: hidden;
}

.reward-highlight-badge::before {
  content: "";
  position: absolute;
  inset: -35% auto auto -18%;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(255,255,255,0.22), transparent 60%);
}

.reward-highlight-badge span {
  position: relative;
  z-index: 1;
  display: block;
  font-size: clamp(1.4rem, 2vw, 1.9rem);
  font-weight: 800;
  letter-spacing: 0.03em;
}

.reward-highlight-badge small {
  position: relative;
  z-index: 1;
  display: block;
  margin-top: 4px;
  opacity: 0.85;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.68rem;
}

.reward-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.reward-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 240px;
  padding: 24px 22px 22px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  overflow: hidden;
}

.reward-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: linear-gradient(90deg, #f4b942, #fef3c7);
}

.reward-card::after {
  content: "";
  position: absolute;
  inset: auto -30px -32px auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.75), transparent 60%);
  opacity: 0.8;
}

.reward-card:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: rgba(99, 102, 241, 0.34);
  box-shadow: 0 22px 48px rgba(15, 23, 42, 0.12);
}

.reward-card.reward-gold {
  background: linear-gradient(180deg, rgba(250, 204, 21, 0.14), rgba(255,255,255,0.9));
}

.reward-card.reward-silver {
  background: linear-gradient(180deg, rgba(148, 163, 184, 0.14), rgba(255,255,255,0.92));
}

.reward-card.reward-bronze {
  background: linear-gradient(180deg, rgba(234, 116, 67, 0.12), rgba(255,255,255,0.92));
}

.reward-card.reward-grant {
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.12), rgba(255,255,255,0.92));
}

.reward-card.reward-growth {
  background: linear-gradient(180deg, rgba(139, 92, 246, 0.12), rgba(255,255,255,0.92));
}

.reward-card.reward-visibility {
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.12), rgba(255,255,255,0.92));
}

.reward-card.reward-silver::before { background: linear-gradient(90deg, #cbd5e1, #f8fafc); }
.reward-card.reward-bronze::before { background: linear-gradient(90deg, #c084fc, #fbbf24); }
.reward-card.reward-grant::before { background: linear-gradient(90deg, #3b82f6, #93c5fd); }
.reward-card.reward-growth::before { background: linear-gradient(90deg, #8b5cf6, #c4b5fd); }
.reward-card.reward-visibility::before { background: linear-gradient(90deg, #10b981, #6ee7b7); }

.reward-rank {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(79, 70, 229, 0.09);
  border: 1px solid rgba(99, 102, 241, 0.18);
  color: #312e81;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.reward-card h3 {
  position: relative;
  z-index: 1;
  margin: 18px 0 12px;
  text-align: left;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.reward-amount {
  position: relative;
  z-index: 1;
  margin-top: auto;
  font-size: clamp(1.5rem, 2vw, 2.1rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #0f172a;
}

.reward-card p {
  position: relative;
  z-index: 1;
  margin-top: 8px;
  color: var(--text-muted);
  text-align: left;
  line-height: 1.6;
}

@media (max-width: 960px) {
  .section-heading-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .reward-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .reward-grid {
    grid-template-columns: 1fr;
  }

  .reward-highlight-badge {
    width: 100%;
  }
}

/* ---------- Prize cards ---------- */
.prize-card { text-align: center; }
.prize-amount { color: var(--purple); font-size: 1.7rem; font-weight: 800; margin: 4px 0 8px; }

/* ---------- Registration fee table ---------- */
.rewards .container { max-width: 80rem; }
.rewards h2 { text-align: left; }
.registration-fee-single {
  display: inline-block;
  margin: 0;
  padding: 14px 20px;
  border-left: 4px solid var(--blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--card);
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(20, 24, 50, 0.06);
}
.registration-fee-content { max-width: 760px; }
.registration-fee-list {
  margin: 0 0 22px;
  padding-left: 26px;
  color: var(--text-muted);
}
.registration-fee-list li { padding-left: 8px; }
.registration-fee-list strong { color: var(--text); }
.registration-table-wrap h3 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 700;
}
.registration-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--border-dark);
  background: var(--card);
  color: var(--text);
}
.registration-table th,
.registration-table td {
  padding: 11px 16px;
  border: 1px solid var(--border-dark);
  text-align: left;
}
.registration-table thead th {
  background: var(--bg-dark-2);
  color: var(--text-light);
  font-weight: 700;
}
.registration-table thead th:last-child,
.registration-table td:last-child { text-align: right; }
.registration-table tbody tr:nth-child(even) { background: var(--bg-alt); }
.registration-table .registration-total th,
.registration-table .registration-total td {
  background: #eaf1ff;
  color: var(--text);
  font-weight: 800;
}

/* ---------- FAQ / Register / Contact wrappers ---------- */
.faq-list { max-width: 760px; margin: 0 auto; }
.register-copy h2 { text-align: left; }
.register-copy p { color: var(--text-muted); }
.contact-grid { margin-top: 8px; }

/* ---------- CTA banner outline button ---------- */
.cta-banner .btn-outline { border-color: rgba(255, 255, 255, 0.6); color: var(--text-light); }

/* ---------- Small utilities ---------- */
.mt-lg { margin-top: 56px; }
.brand-icon { color: var(--orange); display: inline-flex; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-graphic { display: none; }
  .register-inner { grid-template-columns: 1fr; }
  .tracks .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .overview-grid { grid-template-columns: 1fr; gap: 30px; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .hero h1 { font-size: 2.2rem; }
  .main-nav { display: none; }
  .hero .container {
    width: calc(100% - 48px);
    display: block;
  }
  .hero-side { margin-top: 34px; }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .announcement-bar { padding: 9px 16px; font-size: 0.88rem; }
  .card-grid,
  .steps,
  .reward-grid {
    grid-template-columns: 1fr;
  }
  .mentor-card,
  .reward-card,
  .step {
    min-height: unset;
  }
  .section-heading-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .reward-highlight-badge {
    width: 100%;
  }
  .hero-actions,
  .header-actions,
  .btn-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn,
  .btn-sm {
    width: 100%;
    text-align: center;
  }
  .main-nav { display: none; }
  .header-inner { padding: 12px 18px; }
  .container { padding: 0 18px; }
  .hero { padding-top: 72px; }
  .hero .container { width: calc(100% - 36px); }
  .hero-meta {
    gap: 10px 18px;
    font-size: 0.8rem;
  }
  .timeline-title,
  .theme-card h3,
  .reward-card h3,
  .mentor-card h3 {
    font-size: 1rem;
  }
  .section-heading-row h2,
  h2 {
    font-size: 1.8rem;
  }
  .step h3 {
    gap: 10px;
  }
  .step h3::before {
    width: 34px;
    height: 34px;
    font-size: 0.72rem;
  }
  .reward-amount {
    font-size: 1.5rem;
  }

  .tracks .card-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 30px; }
  .registration-table th,
  .registration-table td { padding: 10px 9px; font-size: 0.88rem; }
  .step,
  .step + .step { padding: 0; border-left: 0; }
  .theme-card { min-height: 132px; }
  .overview-heading h1 { font-size: 2.2rem; }
  .overview-copy { padding-left: 16px; }
  .objective-list { grid-template-columns: 1fr; }
}