/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #F8F5F0;
  --fg: #1A1A1A;
  --accent: #1B3D2F;
  --accent-light: #2D5A45;
  --gold: #E8A838;
  --gold-light: #F5C86A;
  --muted: #6B6B6B;
  --border: #E2DDD6;
  --card-bg: #FFFFFF;
  --serif: 'Fraunces', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
}
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* ── Nav ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 40px;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── Hero ── */
.hero { padding: 80px 40px 60px; }
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-headline {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--accent);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.hero-lede {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 480px;
}
.hero-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 4px 24px rgba(27, 61, 47, 0.07);
}
.hero-card-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero-card-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.hero-card-item:last-of-type { border-bottom: none; }
.platform {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  min-width: 64px;
  text-align: center;
}
.platform.instagram { background: #FCE4EC; color: #C2185B; }
.platform.tiktok { background: #E8F5E9; color: #1B8C39; }
.platform.dm { background: #E3F2FD; color: #1565C0; }
.task { font-size: 0.9rem; color: var(--muted); }
.hero-card-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
}
.status-dot {
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Manifesto ── */
.manifesto { background: var(--accent); color: var(--bg); padding: 80px 40px; }
.manifesto-inner { max-width: 700px; margin: 0 auto; }
.manifesto-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}
.manifesto-headline {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.manifesto-body {
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(248, 245, 240, 0.8);
  margin-bottom: 20px;
}
.manifesto-body.accent {
  color: var(--gold-light);
  font-weight: 500;
  font-size: 1.05rem;
}

/* ── Audience ── */
.audience { padding: 80px 40px; }
.audience-inner { max-width: 1100px; margin: 0 auto; }
.audience-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}
.audience-headline {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  margin-bottom: 48px;
  max-width: 600px;
}
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.audience-card {
  background: var(--card-bg);
  padding: 36px 32px;
  border: 1px solid var(--border);
}
.audience-card:nth-child(2) { border-left: none; }
.audience-card:nth-child(3) { border-top: none; }
.audience-card:nth-child(4) { border-top: none; border-left: none; }
.audience-icon { color: var(--accent); margin-bottom: 16px; }
.audience-card h3 {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 10px;
}
.audience-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.65; }

/* ── How ── */
.how { padding: 80px 40px; background: var(--card-bg); border-top: 1px solid var(--border); }
.how-inner { max-width: 1100px; margin: 0 auto; }
.how-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}
.how-headline {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
}
.step {
  padding: 40px 32px;
  border-right: 1px solid var(--border);
}
.step:last-child { border-right: none; }
.step-number {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--gold);
  opacity: 0.6;
  margin-bottom: 16px;
  letter-spacing: -0.04em;
}
.step h3 {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
}
.step p { font-size: 0.88rem; color: var(--muted); line-height: 1.65; }

/* ── Math ── */
.math { padding: 80px 40px; background: var(--accent); color: var(--bg); }
.math-inner { max-width: 1100px; margin: 0 auto; text-align: center; }
.math-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}
.math-headline {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 48px;
}
.math-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.math-item { text-align: center; }
.math-value {
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -0.04em;
}
.math-item.highlight .math-value { color: var(--gold); }
.math-desc { font-size: 0.85rem; color: rgba(248,245,240,0.6); margin-top: 4px; }
.math-operator {
  font-family: var(--serif);
  font-size: 1.5rem;
  color: rgba(248,245,240,0.3);
}
.math-ascent {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.ascent-item {
  background: rgba(255,255,255,0.08);
  padding: 16px 28px;
  border-radius: 8px;
}
.ascent-label { font-size: 0.8rem; color: rgba(248,245,240,0.6); display: block; margin-bottom: 4px; }
.ascent-value { font-family: var(--serif); font-size: 1.4rem; font-weight: 700; color: var(--gold); }
.math-note { font-size: 0.9rem; color: rgba(248,245,240,0.5); max-width: 480px; margin: 0 auto; line-height: 1.65; }

/* ── Closing ── */
.closing { padding: 80px 40px; background: var(--bg); border-top: 1px solid var(--border); }
.closing-inner { max-width: 800px; margin: 0 auto; text-align: center; }
.closing-headline {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 24px;
}
.closing-sub {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Footer ── */
.footer { padding: 40px; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1100px; margin: 0 auto; text-align: center; }
.footer-logo {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}
.footer-tagline { font-size: 0.85rem; color: var(--muted); margin-bottom: 16px; }
.footer-meta { font-size: 0.75rem; color: var(--muted); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav { padding: 0 24px; }
  .hero { padding: 60px 24px 40px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .hero-card { padding: 20px; }
  .manifesto { padding: 60px 24px; }
  .audience { padding: 60px 24px; }
  .audience-grid { grid-template-columns: 1fr; }
  .audience-card { border: 1px solid var(--border) !important; }
  .audience-card:nth-child(3), .audience-card:nth-child(4) { border-top: 1px solid var(--border) !important; }
  .how { padding: 60px 24px; }
  .how-steps { grid-template-columns: 1fr; }
  .step { border-right: none; border-bottom: 1px solid var(--border); }
  .step:last-child { border-bottom: none; }
  .math { padding: 60px 24px; }
  .math-grid { gap: 20px; }
  .math-value { font-size: 2.2rem; }
  .math-operator { display: none; }
  .math-ascent { gap: 16px; }
  .closing { padding: 60px 24px; }
  .footer { padding: 40px 24px; }
}