/* Starting Out '27 — shared brand system */

:root {
  --purple: #6366F1;
  --blue: #3B82F6;
  --coral: #FB7185;
  --amber: #F59E0B;
  --bg: #FAFAFC;
  --bg-alt: #F1F0FA;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-border: rgba(99, 102, 241, 0.14);
  --text: #171522;
  --text-muted: #5B5770;
  --radius: 20px;
  --shadow: 0 20px 60px -20px rgba(99, 102, 241, 0.35);
  --grad-warm: linear-gradient(135deg, var(--coral), var(--amber));
  --grad-brand: linear-gradient(120deg, var(--purple), var(--blue));
  --grad-hero: radial-gradient(circle at 15% 20%, rgba(251, 113, 133, 0.28), transparent 45%),
               radial-gradient(circle at 85% 10%, rgba(99, 102, 241, 0.30), transparent 45%),
               radial-gradient(circle at 50% 90%, rgba(245, 158, 11, 0.22), transparent 50%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0E0C16;
    --bg-alt: #15122200;
    --surface: rgba(30, 27, 46, 0.6);
    --surface-border: rgba(255, 255, 255, 0.08);
    --text: #F5F4FA;
    --text-muted: #A8A4BE;
    --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  }
}

:root[data-theme="dark"] {
  --bg: #0E0C16;
  --bg-alt: #15122200;
  --surface: rgba(30, 27, 46, 0.6);
  --surface-border: rgba(255, 255, 255, 0.08);
  --text: #F5F4FA;
  --text-muted: #A8A4BE;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* Nav */
header.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--surface-border);
}
.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--grad-warm);
}
nav.links { display: flex; gap: 28px; }
nav.links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  transition: color 0.2s ease;
}
nav.links a:hover, nav.links a.active { color: var(--text); }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
}
.btn-warm { background: var(--grad-warm); color: #1a0d05; box-shadow: 0 10px 30px -10px rgba(251, 113, 133, 0.6); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--surface-border); }

/* Hero */
.hero {
  position: relative;
  padding: 120px 0 90px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--grad-hero);
  z-index: -1;
}
.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--purple);
  margin-bottom: 24px;
}
h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
  font-weight: 800;
}
.gradient-text {
  background: var(--grad-warm);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 0 36px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Cards / glass */
.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 32px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 800px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  nav.links { display: none; }
}

section { padding: 80px 0; }
h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  font-weight: 800;
}
.section-lead { color: var(--text-muted); max-width: 560px; margin-bottom: 48px; font-size: 1.05rem; }

.stat { text-align: left; }
.stat .num {
  font-size: 2.6rem;
  font-weight: 800;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: block;
}
.stat .label { color: var(--text-muted); font-size: 0.95rem; margin-top: 4px; }

.photo {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--grad-hero), var(--bg-alt);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  border: 1px dashed var(--surface-border);
  text-align: center;
  padding: 16px;
}
.photo img { width: 100%; height: 100%; object-fit: cover; display: block; }

footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--surface-border);
  color: var(--text-muted);
  font-size: 0.9rem;
}
footer a { color: var(--text-muted); }

.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.pill {
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  font-size: 0.85rem;
  font-weight: 600;
}

form.register {
  display: grid;
  gap: 16px;
  max-width: 480px;
}
form.register input, form.register select {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
}
form.register label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: -8px;
  display: block;
}

.timeline { border-left: 2px solid var(--surface-border); padding-left: 24px; display: grid; gap: 28px; }
.timeline .item .when { font-weight: 700; color: var(--coral); font-size: 0.85rem; }

/* Gallery grid (networking page and others) */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-flow: dense;
  gap: 20px;
}
.gallery .photo { aspect-ratio: 1/1; }
.gallery .photo.wide { aspect-ratio: 16/10; grid-column: span 2; }
@media (max-width: 800px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .gallery .photo.wide { grid-column: span 2; }
}
@media (max-width: 520px) {
  .gallery { grid-template-columns: 1fr; }
  .gallery .photo.wide { grid-column: span 1; }
}

/* Collages and Instagram reel */
.collage { width: 100%; display: block; border-radius: var(--radius); box-shadow: var(--shadow); margin: 0 0 28px; }
.reel { display: flex; justify-content: center; }
.reel .instagram-media { margin: 0 auto !important; }

/* Single-page layout */
section[id] { scroll-margin-top: 72px; }
.muted { color: var(--text-muted); }
.grid-4 { grid-template-columns: repeat(4, 1fr); margin-bottom: 32px; }
.grid-4 .card { padding: 24px; }
.journey { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--surface-border); }
@media (max-width: 800px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  nav.links { display: flex; gap: 16px; }
  nav.links a { font-size: 0.85rem; }
  .nav-inner > .btn { display: none; }
}

/* Consent checkboxes */
form.register .check { display: flex; gap: 10px; align-items: flex-start; font-size: 0.82rem; font-weight: 500; color: var(--text-muted); margin: 0; line-height: 1.45; }
form.register .check input { margin-top: 3px; width: 16px; height: 16px; flex: 0 0 auto; accent-color: var(--purple); padding: 0; }
form.register .guardian { display: grid; gap: 16px; padding: 16px; border: 1px dashed var(--surface-border); border-radius: 12px; }
form.register .guardian[hidden] { display: none; }