/* Gridline Landing Page */
:root {
  --bg: #0c0c0e;
  --bg-2: #131316;
  --bg-card: #18181d;
  --fg: #f0ece4;
  --fg-2: #a8a49e;
  --fg-3: #6b6862;
  --accent: #3dff8f;
  --accent-dim: rgba(61, 255, 143, 0.12);
  --border: rgba(240, 236, 228, 0.08);
  --border-2: rgba(240, 236, 228, 0.04);
  --red: #ff4f4f;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 48px;
  background: rgba(12, 12, 14, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-left: 16px;
  border-left: 1px solid var(--border);
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 140px 48px 80px;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 40px;
}
.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 8.5rem);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 36px;
}
.hero-headline em {
  font-style: italic;
  color: var(--accent);
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-2);
  max-width: 520px;
  line-height: 1.65;
  margin-bottom: 48px;
}
.hero-badges {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-badge {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  min-width: 220px;
}
.hero-badge-2 { margin-top: 12px; }
.badge-icon {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.badge-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--fg);
  margin-bottom: 2px;
}
.badge-sub {
  font-size: 0.78rem;
  color: var(--fg-3);
}

/* PROOF STRIP */
.proof {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  padding: 40px 48px;
}
.proof-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0;
}
.proof-stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 0 24px;
}
.proof-number {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--accent);
  line-height: 1;
}
.proof-label {
  font-size: 0.8rem;
  color: var(--fg-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.proof-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* FEATURES */
.features {
  padding: 120px 48px;
  max-width: 1100px;
  margin: 0 auto;
}
.features-header {
  margin-bottom: 72px;
}
.section-label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 16px;
}
.features-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}
.feature-card {
  background: var(--bg);
  padding: 48px;
  transition: background 0.2s;
}
.feature-card:hover {
  background: var(--bg-card);
}
.feature-icon {
  color: var(--accent);
  margin-bottom: 20px;
}
.feature-title {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--fg);
  margin-bottom: 10px;
}
.feature-desc {
  font-size: 0.9rem;
  color: var(--fg-2);
  line-height: 1.65;
}

/* HOW */
.how {
  padding: 0 48px 120px;
  max-width: 1100px;
  margin: 0 auto;
}
.how-inner {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 64px;
}
.how-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 40px;
}
.how-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
}
.how-item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1rem;
  color: var(--fg-2);
}
.how-check {
  color: var(--accent);
  font-weight: 500;
}
.how-note {
  font-size: 0.92rem;
  color: var(--fg-3);
  font-style: italic;
  border-left: 2px solid var(--accent-dim);
  padding-left: 20px;
  line-height: 1.65;
}

/* CLOSING */
.closing {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 120px 48px;
}
.closing-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 32px;
}
.closing-sub {
  font-size: 1.1rem;
  color: var(--fg-2);
  max-width: 540px;
  line-height: 1.65;
  margin-bottom: 48px;
}
.closing-tag {
  display: inline-block;
  background: var(--accent-dim);
  border: 1px solid rgba(61, 255, 143, 0.2);
  border-radius: 100px;
  padding: 10px 22px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 48px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--fg);
}
.footer-copy {
  font-size: 0.8rem;
  color: var(--fg-3);
}

/* MOBILE */
@media (max-width: 768px) {
  .nav { padding: 16px 24px; }
  .hero { padding: 120px 24px 60px; }
  .features { padding: 80px 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 32px; }
  .proof { padding: 32px 24px; }
  .proof-inner { flex-direction: column; gap: 24px; }
  .proof-divider { width: 48px; height: 1px; }
  .how { padding: 0 24px 80px; }
  .how-inner { padding: 40px 32px; }
  .closing { padding: 80px 24px; }
  .footer { padding: 24px; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
  .nav-tagline { display: none; }
}