:root {
  --color-bg: #FAF7F1;
  --color-bg-alt: #F3EEE3;
  --color-card: #FFFFFF;
  --color-beige: #E8E1D2;
  --color-beige-dark: #DCD3BE;
  --color-ink: #16150F;
  --color-ink-soft: #4A4838;
  --color-muted: #7A7768;
  --color-border: #E2DCC9;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max-width: 1120px;
  --radius: 14px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.section-inner,
.hero-inner,
.nav-inner,
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

/* Nav */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(250, 247, 241, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--color-ink-soft);
  transition: color 0.15s ease;
}

.nav-links a:hover {
  color: var(--color-ink);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s ease;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-ink);
  color: var(--color-bg);
}

.btn-primary:hover {
  background: #000;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-ink);
}

.btn-small {
  padding: 10px 20px;
  font-size: 0.88rem;
}

/* Hero */

.hero {
  position: relative;
  padding: 140px 0 120px;
  overflow: hidden;
  text-align: center;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 20%, black 0%, transparent 70%);
  opacity: 0.5;
}

.eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  max-width: 820px;
  line-height: 1.08;
}

.hero-sub {
  margin-top: 24px;
  max-width: 560px;
  font-size: 1.15rem;
  color: var(--color-ink-soft);
}

.hero-actions {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Sections */

.section {
  padding: 100px 0;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  margin-bottom: 24px;
}

.section h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  max-width: 640px;
  margin-bottom: 24px;
}

.section-lede {
  max-width: 640px;
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  margin-bottom: 16px;
}

.why {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* Cards */

.cards {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.cards-grid {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
}

.card-index {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.card p {
  color: var(--color-ink-soft);
  font-size: 0.95rem;
}

.card-alt {
  background: var(--color-beige);
  border-color: var(--color-beige-dark);
}

/* Waitlist */

.waitlist {
  background: var(--color-ink);
  border-radius: 0;
}

.waitlist-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.waitlist h2,
.waitlist .section-lede {
  color: var(--color-bg);
}

.section-tag-invert {
  color: var(--color-bg-alt);
  border-color: rgba(250, 247, 241, 0.25);
}

.waitlist-form {
  margin-top: 32px;
  display: flex;
  gap: 12px;
  width: 100%;
  max-width: 440px;
  flex-wrap: wrap;
  justify-content: center;
}

.waitlist-form input {
  flex: 1;
  min-width: 220px;
  padding: 14px 18px;
  border-radius: 999px;
  border: 1px solid rgba(250, 247, 241, 0.25);
  background: rgba(250, 247, 241, 0.08);
  color: var(--color-bg);
  font-size: 0.95rem;
  font-family: var(--font-sans);
}

.waitlist-form input::placeholder {
  color: rgba(250, 247, 241, 0.5);
}

.waitlist-form .btn-primary {
  background: var(--color-bg);
  color: var(--color-ink);
}

.waitlist-form .btn-primary:hover {
  background: #fff;
}

.waitlist-status {
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--color-bg-alt);
  min-height: 1.2em;
}

/* Footer */

.footer {
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-footer {
  color: var(--color-ink);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* Responsive */

@media (max-width: 860px) {
  .cards {
    grid-template-columns: 1fr;
  }
  .cards-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }
  .hero {
    padding: 100px 0 80px;
  }
  .section {
    padding: 72px 0;
  }
  .cards-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}