:root {
  --wf-black: #000000;
  --wf-black-soft: #0e0e0e;
  --wf-white: #ffffff;
  --wf-mint: #5ef0cd;
  --wf-surface: #f0f4f3;
  --wf-surface-soft: #fcfcfc;
  --wf-border: #ccced8;
  --wf-text-muted: #686975;
  --wf-text-light: #c2c4cf;
  --wf-radius: 12px;
  --wf-radius-large: 24px;
  --wf-container: 1000px;
  --wf-space-1: 12px;
  --wf-space-2: 18px;
  --wf-space-3: 24px;
  --wf-space-4: 40px;
  --wf-space-5: 72px;
  --wf-space-6: 110px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--wf-black);
}

body {
  margin: 0;
  font-family: "Geist", system-ui, sans-serif;
  color: var(--wf-black);
  background:
    linear-gradient(180deg, var(--wf-black) 0 24rem, var(--wf-white) 24rem 100%);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.wf-shell {
  width: min(calc(100% - 32px), var(--wf-container));
  margin: 0 auto;
}

.wf-section {
  padding: var(--wf-space-6) 0;
}

.wf-section--dark {
  color: var(--wf-white);
}

.wf-section--light {
  background: var(--wf-surface);
  color: var(--wf-black);
  border-radius: var(--wf-radius-large);
  padding-left: var(--wf-space-4);
  padding-right: var(--wf-space-4);
}

.wf-section--white {
  background: var(--wf-white);
  color: var(--wf-black);
}

.wf-grid {
  display: grid;
  gap: var(--wf-space-3);
}

.wf-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.wf-grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.wf-card {
  border: 1px solid var(--wf-border);
  border-radius: var(--wf-radius);
  padding: var(--wf-space-4);
  background: rgba(255, 255, 255, 0.94);
}

.wf-card--dark {
  background: rgba(14, 14, 14, 0.78);
  border-color: rgba(94, 240, 205, 0.25);
  color: var(--wf-white);
}

.wf-display,
.wf-title {
  margin: 0;
  text-transform: uppercase;
  line-height: 1;
  letter-spacing: -0.08em;
}

.wf-display {
  font-size: clamp(2.5rem, 8vw, 5.6rem);
  max-width: 12ch;
}

.wf-title {
  font-size: clamp(1.8rem, 5vw, 3rem);
}

.wf-kicker {
  margin: 0 0 var(--wf-space-2);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border: 1px solid var(--wf-mint);
  border-radius: 8px;
  font-family: "Geist Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.wf-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--wf-mint);
}

.wf-lead {
  max-width: 38rem;
  margin: var(--wf-space-3) 0 0;
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  line-height: 1.5;
  color: inherit;
}

.wf-copy,
.wf-list {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--wf-text-muted);
}

.wf-copy--inverse,
.wf-list--inverse {
  color: rgba(255, 255, 255, 0.78);
}

.wf-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--wf-space-2);
  margin-top: var(--wf-space-4);
}

.wf-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 600;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.wf-button:hover {
  transform: translateY(-1px);
}

.wf-button--primary {
  background: var(--wf-mint);
  color: var(--wf-black);
}

.wf-button--secondary {
  border-color: rgba(94, 240, 205, 0.4);
  color: var(--wf-white);
}

.wf-button--dark {
  background: var(--wf-black);
  color: var(--wf-white);
}

.wf-logo {
  width: clamp(140px, 25vw, 220px);
}

.wf-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--wf-space-3);
  margin-top: var(--wf-space-5);
}

.wf-proof-item strong {
  display: block;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: -0.04em;
}

.wf-stack-lg > * + * {
  margin-top: var(--wf-space-4);
}

.wf-stack-md > * + * {
  margin-top: var(--wf-space-3);
}

.wf-stack-sm > * + * {
  margin-top: var(--wf-space-2);
}

.wf-spotlight {
  padding: var(--wf-space-4);
  border-radius: var(--wf-radius-large);
  background:
    radial-gradient(circle at top left, rgba(94, 240, 205, 0.22), transparent 38%),
    rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(94, 240, 205, 0.18);
}

.wf-spotlight .wf-copy {
  color: rgba(255, 255, 255, 0.78);
}

.wf-faq details {
  padding: var(--wf-space-3) 0;
  border-bottom: 1px solid var(--wf-border);
}

.wf-faq summary {
  list-style: none;
  cursor: pointer;
  font-weight: 600;
}

.wf-faq summary::-webkit-details-marker {
  display: none;
}

.wf-site-index .wf-shell {
  min-height: 100vh;
  display: grid;
  align-items: center;
}

@media (max-width: 800px) {
  .wf-grid--two,
  .wf-grid--three,
  .wf-proof {
    grid-template-columns: 1fr;
  }

  .wf-section {
    padding: var(--wf-space-5) 0;
  }

  .wf-section--light {
    padding-left: var(--wf-space-3);
    padding-right: var(--wf-space-3);
  }
}