:root {
  --bg: #0a0a0f;
  --bg-alt: #101018;
  --card: #15151e;
  --border: #24242f;
  --text: #f2f2f5;
  --text-dim: #9a9aa8;
  --green: #39ff8c;
  --green-dim: #1f8a52;
  --grad: linear-gradient(120deg, #ff2e63 0%, #ff9d2e 45%, #7b2eff 100%);
  --radius: 18px;
  --max: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  overflow-x: hidden;
  position: relative;
}

h1, h2, h3, .logo {
  font-family: 'Poppins', 'Inter', sans-serif;
}

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

.glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  z-index: 0;
  pointer-events: none;
}
.glow-1 {
  width: 500px; height: 500px;
  background: var(--grad);
  top: -150px; left: -150px;
}
.glow-2 {
  width: 500px; height: 500px;
  background: var(--green);
  opacity: 0.15;
  bottom: -200px; right: -150px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(10, 10, 15, 0.75);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}
.logo {
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.5px;
  color: var(--text);
  text-decoration: none;
}
.logo span { color: var(--green); }

.nav {
  display: flex;
  gap: 32px;
}
.nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav a:hover { color: var(--text); }

.nav-cta { display: inline-flex; }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.burger span {
  width: 24px; height: 2px;
  background: var(--text);
  display: block;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.2s, opacity 0.2s;
  border: 1px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--green);
  color: #06170e;
}
.btn-outline {
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--green); }
.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 20px;
  font-size: 0.88rem;
}
.btn-sm { padding: 10px 22px; font-size: 0.88rem; }

/* Hero */
.hero {
  position: relative;
  z-index: 1;
  padding: 120px 0 90px;
  text-align: center;
}
.eyebrow {
  color: var(--green);
  font-weight: 600;
  letter-spacing: 1px;
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 800;
  line-height: 1.05;
  margin: 0 0 20px;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-tagline {
  color: var(--text-dim);
  font-size: 1.25rem;
  line-height: 1.6;
  max-width: 560px;
  margin: 0 auto 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 56px;
  flex-wrap: wrap;
}
.hero-stats div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-stats strong {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--green);
}
.hero-stats span {
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* Mission */
.mission {
  position: relative;
  z-index: 1;
  padding: 90px 0;
}
.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.mission-text h2 { font-size: 2.2rem; margin: 0 0 22px; }
.mission-text p {
  color: var(--text-dim);
  line-height: 1.7;
  font-size: 1.05rem;
  margin: 0 0 18px;
}
.mission-cards {
  display: grid;
  gap: 20px;
}
.mcard {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.mcard-icon { font-size: 1.6rem; }
.mcard h3 { margin: 12px 0 8px; font-size: 1.1rem; }
.mcard p { margin: 0; color: var(--text-dim); font-size: 0.92rem; line-height: 1.5; }

/* Runs */
.runs {
  position: relative;
  z-index: 1;
  padding: 90px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.runs h2, .vibe h2 { font-size: 2.2rem; margin: 0 0 12px; text-align: center; }
.section-sub {
  text-align: center;
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 auto 48px;
}
.runs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.run-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  gap: 20px;
  align-items: center;
}
.run-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 68px; height: 68px;
  flex-shrink: 0;
  border-radius: 14px;
  background: rgba(57, 255, 140, 0.1);
  border: 1px solid var(--green-dim);
}
.run-day { font-size: 1.4rem; font-weight: 800; color: var(--green); line-height: 1; }
.run-month { font-size: 0.7rem; color: var(--text-dim); letter-spacing: 1px; margin-top: 4px; }
.run-info h3 { margin: 0 0 6px; font-size: 1rem; }
.run-info p { margin: 0 0 8px; color: var(--text-dim); font-size: 0.92rem; }
.run-info a { color: var(--green); text-decoration: none; font-size: 0.88rem; font-weight: 600; }

.run-card-cta {
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  background: var(--grad);
  border: none;
}
.run-card-cta h3 { color: #fff; margin: 0 0 8px; }
.run-card-cta p { color: rgba(255,255,255,0.85); margin: 0 0 18px; font-size: 0.92rem; }
.run-card-cta .btn-primary { background: #06170e; color: var(--green); }

/* Vibe */
.vibe {
  position: relative;
  z-index: 1;
  padding: 90px 0;
}
.vibe-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.vibe-tile {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 22px;
  font-weight: 700;
  font-size: 1.05rem;
  color: #fff;
  border: 1px solid var(--border);
  transition: transform 0.3s;
}
.vibe-tile:hover { transform: translateY(-6px); }
.vibe-tile img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.vibe-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(0,0,0,0.75), rgba(0,0,0,0.05) 55%);
  z-index: 1;
}
.vibe-tile span {
  position: relative;
  z-index: 2;
}

/* Join */
.join {
  position: relative;
  z-index: 1;
  padding: 110px 0;
  text-align: center;
}
.join-inner h2 { font-size: 2.4rem; margin: 0 0 16px; }
.join-inner p {
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 auto 36px;
  font-size: 1.05rem;
  line-height: 1.6;
}
.join-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 48px 0;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}
.footer-inner p { color: var(--text-dim); margin: 0; font-size: 0.9rem; }
.footer-links { display: flex; gap: 22px; }
.footer-links a { color: var(--text-dim); text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--green); }
.footer-copy { font-size: 0.8rem !important; opacity: 0.6; }
.footer-credit { font-size: 0.78rem !important; opacity: 0.5; margin-top: -8px !important; }
.footer-credit a { color: var(--text-dim); text-decoration: underline; }
.footer-credit a:hover { color: var(--green); }

/* Responsive */
@media (max-width: 860px) {
  .mission-grid { grid-template-columns: 1fr; }
  .runs-grid { grid-template-columns: 1fr; }
  .vibe-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .nav { display: none; }
  .nav-cta { display: none; }
  .burger { display: flex; }
  .hero { padding: 90px 0 60px; }
  .hero-stats { gap: 32px; }
}

.nav.open {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 20px 24px;
  gap: 18px;
}