:root {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --green-deep: #1a3c2a;
  --green-mid: #2d5a40;
  --lime: #b8f045;
  --lime-dark: #8fb82e;
  --text: #1a1a1a;
  --text-muted: #5a5a52;
  --border: #d4d0c8;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
.nav {
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; max-width: 1100px; margin: 0 auto; }
.nav-logo { font-family: 'Playfair Display', serif; font-size: 20px; font-weight: 600; color: var(--green-deep); letter-spacing: -0.3px; }
.nav-tagline { font-size: 13px; color: var(--text-muted); }

/* ── HERO ── */
.hero { padding: 72px 48px 64px; }
.hero-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-headline {
  font-family: 'Playfair Display', serif;
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--green-deep);
  letter-spacing: -1px;
  margin-bottom: 24px;
}
.hero-headline em { font-style: italic; color: var(--green-mid); }
.hero-sub { font-size: 17px; color: var(--text-muted); max-width: 440px; margin-bottom: 40px; line-height: 1.65; }
.hero-stats { display: flex; align-items: center; gap: 0; }
.hero-stat { padding-right: 28px; }
.hero-stat-value { display: block; font-family: 'Playfair Display', serif; font-size: 28px; font-weight: 600; color: var(--green-deep); line-height: 1; }
.hero-stat-label { display: block; font-size: 12px; color: var(--text-muted); margin-top: 4px; max-width: 100px; }
.hero-stat-divider { width: 1px; height: 40px; background: var(--border); margin-right: 28px; flex-shrink: 0; }

/* Hero cards */
.hero-right { display: flex; flex-direction: column; gap: 12px; }
.hero-card { background: var(--surface); border-radius: 12px; padding: 20px; border: 1px solid var(--border); }
.hero-card-main { box-shadow: 0 4px 24px rgba(26,60,42,0.08); }
.hero-card-label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 6px; }
.hero-card-title { font-family: 'Playfair Display', serif; font-size: 16px; font-weight: 600; color: var(--green-deep); margin-bottom: 14px; }
.hero-card-bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.hero-card-bar-label { font-size: 12px; color: var(--text-muted); width: 85px; flex-shrink: 0; }
.hero-card-bar { flex: 1; height: 6px; background: #e8efe8; border-radius: 3px; overflow: hidden; }
.hero-card-bar-fill { height: 100%; background: #c0392b; border-radius: 3px; }
.hero-card-bar-fill-green { background: var(--green-deep); }
.hero-card-bar-val { font-size: 12px; font-weight: 600; color: var(--green-deep); width: 72px; text-align: right; }
.hero-card-savings { display: flex; justify-content: space-between; align-items: center; padding: 10px 0 0; border-top: 1px solid var(--border); margin-top: 4px; }
.hero-card-savings-label { font-size: 12px; color: var(--text-muted); }
.hero-card-savings-value { font-family: 'Playfair Display', serif; font-size: 20px; font-weight: 700; color: var(--lime-dark); }
.hero-card-savings-sm .hero-card-savings-value { font-size: 16px; color: var(--green-mid); }
.hero-card-carbon { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--green-mid); margin-top: 8px; }
.hero-card-carbon-icon { color: var(--lime); font-size: 14px; }
.hero-card-secondary { border-left: 3px solid var(--green-mid); }
.hero-card-tertiary { display: flex; align-items: center; gap: 16px; }
.hero-carbon-ring { position: relative; flex-shrink: 0; }
.hero-carbon-ring-label { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; color: var(--green-deep); }

/* ── HOW ── */
.how { padding: 72px 48px; background: var(--green-deep); color: #fff; }
.how-inner { max-width: 1100px; margin: 0 auto; }
.how-header { text-align: center; margin-bottom: 56px; }
.how-title { font-family: 'Playfair Display', serif; font-size: 40px; font-weight: 600; letter-spacing: -0.5px; margin-bottom: 12px; }
.how-sub { font-size: 17px; color: rgba(255,255,255,0.65); }
.how-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.how-step-num { font-family: 'Playfair Display', serif; font-size: 48px; font-weight: 700; color: var(--lime); line-height: 1; margin-bottom: 20px; opacity: 0.9; }
.how-step-title { font-family: 'Playfair Display', serif; font-size: 22px; font-weight: 600; margin-bottom: 12px; }
.how-step-body { font-size: 15px; color: rgba(255,255,255,0.7); line-height: 1.7; }

/* ── FEATURES ── */
.features { padding: 72px 48px; }
.features-inner { max-width: 1100px; margin: 0 auto; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--surface); border-radius: 12px; padding: 28px; border: 1px solid var(--border); }
.feature-card-wide { grid-column: span 2; }
.feature-icon { font-size: 28px; margin-bottom: 16px; color: var(--green-mid); }
.feature-title { font-family: 'Playfair Display', serif; font-size: 20px; font-weight: 600; color: var(--green-deep); margin-bottom: 10px; }
.feature-body { font-size: 15px; color: var(--text-muted); line-height: 1.65; }

/* ── MANIFESTO ── */
.manifesto { padding: 72px 48px; background: #f0ede6; }
.manifesto-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.manifesto-text { font-family: 'Playfair Display', serif; font-size: clamp(22px, 2.5vw, 30px); font-style: italic; color: var(--green-deep); line-height: 1.4; }
.manifesto-body p { font-size: 16px; color: var(--text-muted); margin-bottom: 16px; line-height: 1.7; }

/* ── CLOSING ── */
.closing { padding: 80px 48px; }
.closing-inner { max-width: 1100px; margin: 0 auto; text-align: center; }
.closing-title { font-family: 'Playfair Display', serif; font-size: clamp(36px, 4vw, 52px); font-weight: 700; color: var(--green-deep); line-height: 1.15; letter-spacing: -0.5px; margin-bottom: 24px; }
.closing-sub { font-size: 17px; color: var(--text-muted); max-width: 560px; margin: 0 auto 36px; line-height: 1.7; }
.closing-vision { display: inline-block; }
.closing-vision-label { font-size: 13px; font-weight: 600; color: var(--text-muted); letter-spacing: 0.05em; text-transform: uppercase; }

/* ── FOOTER ── */
.footer { padding: 32px 48px; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.footer-name { font-family: 'Playfair Display', serif; font-size: 16px; font-weight: 600; color: var(--green-deep); display: block; }
.footer-tagline { font-size: 12px; color: var(--text-muted); display: block; margin-top: 2px; }
.footer-note { font-size: 12px; color: var(--text-muted); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav, .hero, .how, .features, .manifesto, .closing, .footer { padding-left: 24px; padding-right: 24px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-right { display: none; }
  .hero-headline { font-size: 36px; }
  .how-steps { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card-wide { grid-column: span 1; }
  .manifesto-inner { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}