:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --text: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #7c7c9a;
  --primary: #5c6bc0;
  --primary-dark: #3949ab;
  --accent: #ff7043;
  --gold: #ffd700;
  --border: rgba(0, 0, 0, 0.08);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --radius: 16px;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

/* Header */
header.site {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.85);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand img {
  height: 44px;
  width: auto;
  display: block;
}

nav.primary {
  display: flex;
  align-items: center;
  gap: 28px;
}

nav.primary a {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

nav.primary a:hover,
nav.primary a.active {
  color: var(--primary);
  text-decoration: none;
}

@media (max-width: 720px) {
  header.site .wrap {
    height: auto;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 14px;
    padding-bottom: 14px;
    gap: 10px;
  }
  nav.primary {
    width: 100%;
    gap: 18px;
    flex-wrap: wrap;
  }
  nav.primary a {
    font-size: 13px;
  }
  .brand img {
    height: 38px;
  }
}

/* Hero */
.hero {
  padding: 96px 0 80px;
  background: linear-gradient(180deg, #f3f4ff 0%, var(--bg) 100%);
}

.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin: 0 0 20px;
  max-width: 780px;
}

.hero .lede {
  font-size: clamp(17px, 1.6vw, 19px);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 0 32px;
}

.hero .cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  transition: background 0.15s;
}

.hero .cta:hover {
  background: var(--primary-dark);
  text-decoration: none;
}

/* Sections */
section.block {
  padding: 80px 0;
}

section.block.alt {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

section.block h2 {
  font-size: clamp(28px, 3.2vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 0 0 16px;
}

section.block .sub {
  color: var(--text-secondary);
  font-size: 17px;
  max-width: 680px;
  margin: 0 0 40px;
}

/* Who we are — long-form prose section */
.who-we-are p {
  font-size: 16px;
  color: var(--text);
  line-height: 1.75;
  max-width: 760px;
  margin: 0 0 18px;
}

.who-we-are .intersect {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin: 24px 0 28px;
  padding: 0;
  list-style: none;
}

.who-we-are .intersect li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-secondary);
}

/* Pillars grid */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.pillar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.pillar .icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.pillar h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 6px;
}

.pillar p {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
}

/* Product card */
.product {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  background: linear-gradient(135deg, #3949ab, #5c6bc0, #7986cb);
  color: #fff;
  border-radius: 24px;
  padding: 40px;
}

@media (min-width: 768px) {
  .product {
    grid-template-columns: 2fr 1fr;
    align-items: center;
  }
}

.product .label {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.product h3 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.product .tag {
  font-size: 18px;
  color: var(--gold);
  margin: 0 0 16px;
  font-weight: 600;
}

.product .desc {
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

.product .visual {
  text-align: center;
  font-size: 96px;
}

/* Audience */
.bands {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.band {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
}

.band .age {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
}

.band .label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

/* Contact */
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.contact-card .email {
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  color: var(--primary);
}

.contact-card p {
  color: var(--text-secondary);
  margin: 8px 0 0;
}

/* Footer */
footer.site {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 32px 0;
  font-size: 13px;
  color: var(--text-muted);
}

footer.site .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

footer.site a {
  color: var(--text-secondary);
}

footer.site .links a {
  margin-left: 18px;
}

/* Legal/policy pages */
.policy {
  padding: 64px 0 96px;
  max-width: 760px;
}

.policy h1 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

.policy .updated {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 32px;
}

.policy h2 {
  font-size: 22px;
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 8px;
}

.policy h3 {
  font-size: 17px;
  font-weight: 700;
  margin-top: 24px;
  margin-bottom: 6px;
}

.policy p,
.policy li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.policy hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 36px 0;
}

.policy table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 16px 0;
}

.policy th,
.policy td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.policy th {
  background: var(--bg);
  font-weight: 700;
}

.policy code {
  background: rgba(92, 107, 192, 0.08);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
}

.policy .note {
  background: #fff8e1;
  border-left: 3px solid var(--gold);
  padding: 12px 16px;
  border-radius: 4px;
  font-size: 14px;
  color: var(--text-secondary);
  margin: 24px 0;
}

.back-link {
  display: inline-block;
  font-size: 14px;
  margin-bottom: 24px;
  color: var(--primary);
}