:root {
  --bg: #FAF8F5;
  --fg: #1a1a1a;
  --accent: #E8552A;
  --accent-light: #FEF0EB;
  --muted: #6b6b6b;
  --border: #E5E2DC;
  --surface: #FFFFFF;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'Instrument Sans', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.dot { color: var(--accent); }

.nav-tag {
  font-size: 0.875rem;
  color: var(--muted);
  font-family: var(--font-sans);
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 48px 96px;
  border-bottom: 1px solid var(--border);
}

.hero-kicker {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 4.5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--muted);
  line-height: 1.65;
  max-width: 480px;
  margin-bottom: 32px;
}

.hero-proof {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.proof-item {
  font-size: 0.8125rem;
  color: var(--muted);
}

.proof-item strong {
  color: var(--fg);
  font-weight: 600;
}

.proof-sep {
  color: var(--border);
}

/* INBOX MOCK */
.inbox-mock {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.07), 0 4px 16px rgba(0,0,0,0.04);
}

.mock-bar {
  background: #f5f3ef;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.mock-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.mock-dot.red { background: #FF5F57; }
.mock-dot.yellow { background: #FEBC2E; }
.mock-dot.green { background: #28C840; }

.mock-label {
  font-size: 0.75rem;
  color: var(--muted);
  margin-left: 8px;
}

.mock-emails { padding: 16px; display: flex; flex-direction: column; gap: 10px; }

.email-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  transition: all 0.2s;
}

.email-sent { border-left: 3px solid var(--accent); }

.email-reply { border-left: 3px solid #28C840; background: #F0FBF4; }

.email-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.email-to { font-size: 0.6875rem; font-weight: 600; color: var(--fg); }
.email-status { font-size: 0.6875rem; color: var(--muted); }
.email-reply-text { color: #28C840; font-style: italic; font-size: 0.8125rem; }

.email-subject { font-size: 0.75rem; color: var(--muted); margin-bottom: 4px; }
.email-preview { font-size: 0.75rem; color: var(--muted); }

.email-tags { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }

.tag {
  font-size: 0.625rem;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--border);
  color: var(--muted);
  font-weight: 500;
}

.tag.positive { background: #D4F8E0; color: #1a8a3e; }

.mock-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border);
  padding: 0;
}

.stat {
  padding: 14px 16px;
  text-align: center;
  border-right: 1px solid var(--border);
}
.stat:last-child { border-right: none; }

.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.stat-label {
  display: block;
  font-size: 0.6875rem;
  color: var(--muted);
  margin-top: 2px;
}

/* MANIFESTO */
.manifesto {
  background: var(--fg);
  color: var(--bg);
  padding: 72px 48px;
}

.manifesto-inner {
  max-width: 720px;
  margin: 0 auto;
}

.manifesto-text {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}

.manifesto-text:last-child { margin-bottom: 0; }

.manifesto-text em { font-style: italic; color: var(--accent); }

/* FEATURES */
.features {
  padding: 96px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.features-header { margin-bottom: 56px; }

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 2.5vw, 2.25rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 48px;
}

.feature {}

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 16px;
}

.feature-title {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--muted);
  line-height: 1.6;
}

/* HOW */
.how {
  background: #F5F2ED;
  padding: 96px 48px;
}

.how-inner { max-width: 1200px; margin: 0 auto; }

.how-steps { display: flex; gap: 48px; margin-top: 56px; }

.step { flex: 1; position: relative; }

.step-num {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--border);
  letter-spacing: -0.04em;
  margin-bottom: 16px;
  line-height: 1;
}

.step-content h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.step-content p { font-size: 0.9375rem; color: var(--muted); line-height: 1.6; }

/* CLOSING */
.closing { padding: 120px 48px; text-align: center; }
.closing-inner { max-width: 800px; margin: 0 auto; }

.closing-text {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  line-height: 1.35;
  letter-spacing: -0.025em;
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px;
}

.footer-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 24px; }

.footer-brand { font-family: var(--font-serif); font-size: 1.25rem; }
.footer-tagline { font-size: 0.875rem; color: var(--muted); flex: 1; }
.footer-copy { font-size: 0.8125rem; color: var(--muted); }

/* MOBILE */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  
  .hero {
    grid-template-columns: 1fr;
    padding: 48px 24px 64px;
    gap: 40px;
  }
  
  .hero-headline { font-size: 2.5rem; }
  
  .features { padding: 64px 24px; }
  .features-grid { grid-template-columns: 1fr; gap: 32px; }
  
  .how { padding: 64px 24px; }
  .how-steps { flex-direction: column; gap: 32px; }
  
  .manifesto { padding: 64px 24px; }
  
  .closing { padding: 80px 24px; }
  
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
  
  .hero-proof { flex-direction: column; align-items: flex-start; gap: 8px; }
  .proof-sep { display: none; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2rem; }
  .mock-stats { grid-template-columns: 1fr; }
  .stat { border-right: none; border-bottom: 1px solid var(--border); }
  .stat:last-child { border-bottom: none; }
}