/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f4f2ee;
  --bg-card: #ece9e3;
  --fg: #1c1a17;
  --fg-mid: #5c584f;
  --fg-light: #9b9589;
  --accent: #2d5a41;
  --accent-warm: #c8622a;
  --accent-light: #3d7a59;
  --border: #ddd9d0;
  --white: #ffffff;
}

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

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background-color: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === NAV === */
.nav {
  padding: 20px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-name {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
  color: var(--fg);
}

.brand-badge {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--accent);
  color: #fff;
  padding: 2px 7px;
  border-radius: 3px;
}

/* === HERO === */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 100px 48px 80px;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}

.hero-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 28px;
}

.hero-headline em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--fg-mid);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 0;
  align-items: center;
}

.stat {
  display: flex;
  flex-direction: column;
  padding: 0 24px;
}

.stat:first-child { padding-left: 0; }

.stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--fg);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--fg-light);
  line-height: 1.4;
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* Hero Visual */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.proof-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.proof-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-light) 100%);
}

.proof-card-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-light);
}

.proof-card-slash {
  font-family: 'Syne', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  opacity: 0.25;
  line-height: 1;
}

.proof-card-transforms {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.proof-card-result {
  background: var(--bg);
  border-radius: 10px;
  padding: 20px 24px;
}

.result-label {
  font-family: 'Syne', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
}

.result-sub {
  font-size: 0.8rem;
  color: var(--fg-mid);
  margin-top: 4px;
}

.manifesto-note {
  font-family: 'Syne', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg-light);
  letter-spacing: -0.01em;
  padding-left: 8px;
  border-left: 2px solid var(--accent);
}

/* === HOW === */
.how {
  background: var(--fg);
  padding: 100px 48px;
}

.how-header {
  max-width: 640px;
  margin-bottom: 64px;
}

.how-header h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.how-header .underline {
  text-decoration: underline;
  text-decoration-color: var(--accent-light);
  text-underline-offset: 4px;
}

.how-header p {
  color: #8b877e;
  font-size: 1rem;
  line-height: 1.7;
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.step {
  background: #262420;
  padding: 36px 32px;
  position: relative;
}

.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-light);
  margin-bottom: 20px;
}

.step h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.step p {
  font-size: 0.88rem;
  color: #7a766d;
  line-height: 1.7;
}

/* === FEATURES === */
.features {
  padding: 100px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.features-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 48px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 32px;
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--bg);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
}

.feature-card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--fg-mid);
  line-height: 1.7;
}

/* === CLOSING === */
.closing {
  background: var(--accent);
  padding: 100px 48px;
}

.closing-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.closing h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 24px;
}

.closing p {
  font-size: 1rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 40px;
}

.closing-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.tag {
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.9);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.2);
}

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

.footer-brand {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--fg);
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-mid);
  margin-bottom: 16px;
}

.footer-note {
  font-size: 0.72rem;
  color: var(--fg-light);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .nav { padding: 16px 24px; }
  .hero {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 60px 24px 48px;
  }
  .hero-visual { display: none; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .stat-divider { display: none; }
  .how { padding: 60px 24px; }
  .how-steps { grid-template-columns: 1fr; gap: 2px; }
  .features { padding: 60px 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .closing { padding: 60px 24px; }
  .footer { padding: 36px 24px; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2rem; }
  .stat { padding: 0 12px; }
  .stat-num { font-size: 1.2rem; }
}