:root {
  --stone-50: #faf8f5;
  --stone-100: #f2ede7;
  --stone-200: #e5ddd4;
  --stone-300: #ccc3b8;
  --stone-500: #8a7e72;
  --stone-700: #4d453c;
  --stone-800: #332e28;
  --stone-900: #1a1714;
  --copper: #c17d5a;
  --copper-dark: #a3633d;
  --cream: #f5f0e8;
}

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

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--stone-50);
  color: var(--stone-800);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
}
.nav__wordmark {
  font-family: 'Fraunces', serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--stone-900);
  letter-spacing: -0.02em;
}
.nav__tag {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone-500);
  font-weight: 500;
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 48px 80px;
  position: relative;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(193, 125, 90, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(193, 125, 90, 0.05) 0%, transparent 70%);
}
.hero__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.hero__headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(56px, 8vw, 96px);
  font-weight: 700;
  line-height: 0.95;
  color: var(--stone-900);
  letter-spacing: -0.03em;
}
.hero__headline em {
  font-style: italic;
  color: var(--copper);
}
.hero__sub {
  margin-top: 28px;
  font-size: 18px;
  color: var(--stone-500);
  font-weight: 300;
  max-width: 380px;
  line-height: 1.7;
}
.hero__scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stone-300);
}

/* ── DEVICE ILLUSTRATION ── */
.hero__device {
  display: flex;
  justify-content: center;
  align-items: center;
}
.device-frame {
  width: 280px;
  height: 280px;
  background: var(--stone-100);
  border-radius: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 0 0 1px var(--stone-200),
    0 40px 80px rgba(26, 23, 20, 0.12),
    0 12px 24px rgba(26, 23, 20, 0.08);
  position: relative;
}
.device-face {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  height: 100%;
}
.device-ring {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 2px solid var(--stone-300);
  position: relative;
}
.device-ring::after {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  border: 1px solid var(--stone-200);
}
.device-core {
  position: absolute;
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.device-pulse {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--copper);
  animation: pulse 2.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}
.device-label {
  position: absolute;
  bottom: 32px;
  font-family: 'Fraunces', serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--stone-500);
  letter-spacing: 0.08em;
}

/* ── MANIFESTO ── */
.manifesto {
  background: var(--stone-900);
  color: var(--stone-100);
  padding: 120px 48px;
}
.manifesto__inner {
  max-width: 720px;
  margin: 0 auto;
}
.manifesto__eyebrow {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 32px;
}
.manifesto__statement {
  font-family: 'Fraunces', serif;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  line-height: 1.15;
  color: var(--cream);
  letter-spacing: -0.02em;
}
.manifesto__body {
  margin-top: 28px;
  font-size: 17px;
  color: var(--stone-300);
  line-height: 1.8;
  font-weight: 300;
}
.manifesto__rule {
  border: none;
  border-top: 1px solid var(--stone-700);
  margin: 48px 0;
}
.manifesto__solution {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  color: var(--stone-300);
}
.manifesto__solution strong {
  color: var(--copper);
  font-weight: 700;
}
.manifesto__sol-label {
  margin-right: 8px;
}

/* ── FEATURES ── */
.features {
  padding: 120px 48px;
}
.features__grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--stone-200);
  border: 1px solid var(--stone-200);
  border-radius: 24px;
  overflow: hidden;
}
.feature-card {
  background: var(--stone-50);
  padding: 48px 40px;
  position: relative;
  overflow: hidden;
}
.feature-card--large {
  grid-column: 1 / -1;
}
.feature-card__number {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--copper);
  margin-bottom: 20px;
}
.feature-card__title {
  font-family: 'Fraunces', serif;
  font-size: 24px;
  font-weight: 600;
  color: var(--stone-900);
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.feature-card__body {
  font-size: 15px;
  color: var(--stone-500);
  line-height: 1.75;
  font-weight: 300;
}
.feature-card__accent {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--copper), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.feature-card--large .feature-card__accent {
  opacity: 1;
}
.feature-card:hover .feature-card__accent {
  opacity: 1;
}

/* ── CLOSING ── */
.closing {
  padding: 120px 48px;
  background: var(--stone-100);
  text-align: center;
}
.closing__inner {
  max-width: 640px;
  margin: 0 auto;
}
.closing__badge {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--copper);
  border: 1px solid var(--copper);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 36px;
}
.closing__headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  color: var(--stone-900);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.closing__sub {
  margin-top: 24px;
  font-size: 17px;
  color: var(--stone-500);
  font-weight: 300;
  line-height: 1.7;
}

/* ── FOOTER ── */
.footer {
  padding: 40px 48px;
  border-top: 1px solid var(--stone-200);
}
.footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer__brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.footer__wordmark {
  font-family: 'Fraunces', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--stone-900);
}
.footer__tagline {
  font-size: 12px;
  color: var(--stone-500);
  letter-spacing: 0.06em;
}
.footer__note {
  font-size: 13px;
  color: var(--stone-300);
  font-weight: 300;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero { padding: 100px 24px 80px; }
  .hero__content { grid-template-columns: 1fr; gap: 48px; }
  .hero__device { order: -1; }
  .device-frame { width: 200px; height: 200px; border-radius: 32px; }
  .device-ring { width: 70px; height: 70px; }
  .device-core { width: 70px; height: 70px; }
  .hero__headline { font-size: 52px; }
  .manifesto, .features, .closing { padding: 80px 24px; }
  .features__grid { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; gap: 16px; text-align: center; }
}
@media (max-width: 375px) {
  .hero__headline { font-size: 44px; }
  .manifesto__statement { font-size: 26px; }
}