:root {
  --bg: #f4f5f7;
  --bg-2: #eef1f5;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.84);
  --text: #20242b;
  --muted: #66707d;
  --line: rgba(32, 36, 43, 0.1);
  --accent-blue: #6e829d;
  --accent-blue-soft: rgba(110, 130, 157, 0.12);
  --accent-green: #7f9c90;
  --accent-green-soft: rgba(127, 156, 144, 0.12);
  --shadow: 0 30px 80px rgba(27, 35, 48, 0.08);
  --radius: 28px;
  --max: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(110, 130, 157, 0.08), transparent 30%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  line-height: 1.6;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.12) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: 0.18;
  pointer-events: none;
}

.site-shell {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 18px 0 64px;
  position: relative;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 14px 0 26px;
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
}

.brand-logo {
  display: block;
  height: 18px;
  width: auto;
}

.brand-accent {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent-green);
  box-shadow: 0 0 0 6px rgba(127, 156, 144, 0.12);
}

.topnav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.topnav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.93rem;
  transition: color 180ms ease;
}

.topnav a:hover {
  color: var(--text);
}

.hero,
.section,
.persona {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.64);
  box-shadow: var(--shadow);
  border-radius: calc(var(--radius) + 4px);
}

.hero {
  padding: clamp(66px, 10vw, 126px);
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.eyebrow,
.persona-label,
.section-index,
.recommended-badge,
.reference-tag,
.proposal-kicker {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

.eyebrow,
.persona-label,
.section-index,
.proposal-kicker {
  color: var(--accent-blue);
}

.eyebrow,
.proposal-kicker,
.persona-label {
  display: inline-block;
}

.eyebrow {
  margin-bottom: 14px;
}

.proposal-kicker {
  margin-bottom: 20px;
  color: var(--accent-green);
}

.hero h1 {
  margin: 0;
  max-width: 1000px;
  font-size: clamp(2.9rem, 6vw, 6.25rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.hero-copy {
  max-width: 780px;
  margin: 28px 0 0;
  font-size: clamp(1.08rem, 2vw, 1.32rem);
  color: var(--muted);
}

.hero-actions {
  margin-top: 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 220ms ease, background 220ms ease, border-color 220ms ease, color 220ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--text);
  color: #fff;
}
.button.secondary {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.62);
}

.button.secondary:hover {
  border-color: rgba(127, 156, 144, 0.3);
  color: var(--accent-green);
}

.section,
.persona {
  padding: clamp(28px, 4vw, 44px);
  margin-top: 22px;
}

.section-heading {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  margin-bottom: 28px;
}

.section-index {
  padding-top: 10px;
}

.section h2,
.persona h3 {
  margin: 0;
  font-size: clamp(1.8rem, 2.5vw, 2.8rem);
  letter-spacing: -0.03em;
}

.section-heading p,
.persona-feel,
.content-card p,
.phase-step p,
.pillar-card p,
.persona-details p,
.reference-meta p,
.reference-overlay p {
  margin: 10px 0 0;
  color: var(--muted);
}

.two-col,
.pillars-grid,
.next-phase-grid,
.persona-grid,
.detail-grid,
.strength-risk,
.reference-thumbs {
  display: grid;
  gap: 18px;
}

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

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

.content-card,
.pillar-card,
.phase-step,
.persona-details,
.reference-primary,
.thumb,
.reference-meta {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: 24px;
}

.content-card,
.pillar-card,
.phase-step,
.persona-details,
.reference-meta {
  padding: 24px;
}

.content-card.large {
  padding: 30px;
}

.tag-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.tag-row span {
  border: 1px solid rgba(127, 156, 144, 0.22);
  border-radius: 999px;
  padding: 9px 14px;
  color: var(--muted);
  background: rgba(127, 156, 144, 0.08);
  font-size: 0.92rem;
}

.pillar-card h3,
.phase-step h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
}

.persona {
  position: relative;
  overflow: hidden;
}

.persona::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.14), transparent 40%);
  pointer-events: none;
}

.persona-intro {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 24px;
}
.persona-feel {
  max-width: 380px;
  text-align: right;
}

.reference-layout {
  grid-template-columns: minmax(320px, 0.96fr) minmax(0, 1.18fr);
  align-items: start;
}

.persona-references {
  display: grid;
  gap: 18px;
}
.reference-primary {
  min-height: 320px;
  position: relative;
  overflow: hidden;
  padding: 24px;
  display: flex;
  align-items: end;
}

.reference-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(32,36,43,0.08));
}
.reference-overlay {
  position: relative;
  z-index: 1;
}

.reference-overlay strong {
  display: block;
  margin-top: 10px;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.reference-tag {
  color: var(--accent-green);
}

.reference-thumbs {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.thumb {
  min-height: 112px;
  padding: 16px;
  display: flex;
  align-items: end;
  font-size: 0.92rem;
  color: rgba(32, 36, 43, 0.84);
}
.reference-meta a {
  display: inline-flex;
  margin-top: 14px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 156, 144, 0.28);
  padding-bottom: 2px;
}

.reference-meta a:hover {
  color: var(--accent-green);
}

.mood-carmen {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.22)),
    linear-gradient(135deg, #d9d4cd 0%, #f2efea 100%);
}

.mood-vanessa {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.18)),
    linear-gradient(135deg, #d9dee5 0%, #f5f7fa 100%);
}

.mood-michelle {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.18)),
    linear-gradient(135deg, #d6dbe0 0%, #eef1f5 100%);
}
.detail-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 18px;
}

.detail-grid div {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.detail-grid span,
.strength-risk span {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 8px;
}

.detail-grid strong {
  font-size: 0.98rem;
  line-height: 1.45;
}

.strength-risk {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 22px;
}
.recommended-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--accent-blue-soft);
  color: var(--accent-blue);
  border: 1px solid rgba(110, 130, 157, 0.18);
  margin-bottom: 22px;
}

.content-world .pillar-card {
  min-height: 180px;
}

.phase-step span {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--accent-green-soft);
  color: var(--accent-green);
  margin-bottom: 14px;
  font-size: 0.9rem;
}
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .topbar,
  .persona-intro {
    flex-direction: column;
    align-items: flex-start;
  }

  .persona-feel {
    text-align: left;
  }

  .two-col,
  .pillars-grid,
  .next-phase-grid,
  .persona-grid,
  .detail-grid,
  .strength-risk,
  .reference-thumbs {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }
}

@media (max-width: 720px) {
  .site-shell {
    width: min(calc(100% - 24px), var(--max));
  }

  .topnav {
    gap: 12px;
  }
  .topnav a {
    font-size: 0.88rem;
  }

  .hero,
  .section,
  .persona {
    border-radius: 24px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .section-index {
    padding-top: 0;
  }
}