/* ---------- reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; }
a { color: inherit; }

:root {
  --bg: #0b0d10;
  --bg-elev: #11151b;
  --bg-soft: #151a21;
  --line: #1f2630;
  --line-strong: #2a3340;
  --text: #e7ecf3;
  --text-dim: #9aa6b6;
  --text-faint: #6b7689;
  --accent: #ffb84d;       /* warm bat-amber */
  --accent-2: #7cf0c2;     /* mint accent */
  --grad-a: #ffb84d;
  --grad-b: #ff6f91;
  --grad-c: #7cf0c2;
  --radius: 12px;
  --shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 30px 60px -30px rgba(0,0,0,0.6);
  --maxw: 1080px;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(255,184,77,0.10), transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 10%, rgba(124,240,194,0.06), transparent 60%),
    linear-gradient(to bottom, rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(to right, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: auto, auto, 48px 48px, 48px 48px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 50%, transparent 85%);
}

/* ---------- layout ---------- */
.nav, main, .footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  position: relative;
  z-index: 1;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  padding-bottom: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.brand-mark {
  width: 28px;
  height: 28px;
  color: var(--accent);
  filter: drop-shadow(0 2px 12px rgba(255,184,77,0.35));
}
.brand-name {
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: 18px;
}
.brand-dot { color: var(--text-faint); font-weight: 500; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
  color: var(--text-dim);
}
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--text); }

/* ---------- hero ---------- */
.hero {
  padding: 72px 0 56px;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}
.hero-eyebrow { margin-bottom: 22px; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 999px;
}
.pill::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 12px var(--accent-2);
}

.hero-title {
  font-size: clamp(36px, 5.4vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 700;
  margin: 0 0 18px;
}
.grad {
  background: linear-gradient(95deg, var(--grad-a), var(--grad-b) 50%, var(--grad-c));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--text-dim);
  margin: 0 auto 32px;
  max-width: 600px;
}

/* ---------- waitlist form ---------- */
.waitlist {
  display: flex;
  gap: 8px;
  max-width: 460px;
  margin: 0 auto;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 6px;
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.waitlist input[type="email"] {
  flex: 1;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--text);
  font-size: 15px;
  padding: 12px 14px;
}
.waitlist input::placeholder { color: var(--text-faint); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  padding: 11px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  text-decoration: none;
  transition: transform .08s ease, background .15s ease, border-color .15s ease, color .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(180deg, #ffd28a, var(--accent));
  color: #1a1207;
  border-color: rgba(0,0,0,0.2);
}
.btn-primary:hover { filter: brightness(1.04); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line-strong);
}
.btn-ghost:hover { background: var(--bg-elev); }

.btn-spinner {
  display: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 2px solid rgba(0,0,0,0.25);
  border-top-color: rgba(0,0,0,0.85);
  animation: spin 0.7s linear infinite;
}
.btn.is-loading .btn-label { opacity: 0.6; }
.btn.is-loading .btn-spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.form-status {
  min-height: 22px;
  margin: 14px 0 0;
  font-size: 14px;
  color: var(--text-dim);
}
.form-status.is-success { color: var(--accent-2); }
.form-status.is-error { color: #ff7a8a; }

.hero-fineprint {
  margin-top: 14px;
  color: var(--text-faint);
  font-size: 13px;
}

/* ---------- features ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 48px 0 16px;
}
@media (max-width: 820px) {
  .features { grid-template-columns: 1fr; }
}
.feature {
  background: linear-gradient(180deg, var(--bg-elev), var(--bg-soft));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.feature h3 {
  margin: 14px 0 6px;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.feature p {
  margin: 0;
  color: var(--text-dim);
  font-size: 14.5px;
}
.feature-icon {
  width: 36px; height: 36px;
  border-radius: 9px;
  display: grid; place-items: center;
  background: rgba(255,184,77,0.08);
  color: var(--accent);
  border: 1px solid rgba(255,184,77,0.18);
}
.feature-icon svg { width: 20px; height: 20px; }

/* ---------- stack ---------- */
.stack { padding: 32px 0 64px; }
.stack-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.stack-label {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.stack-row { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  font-size: 12.5px;
  color: var(--text-dim);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  padding: 5px 10px;
  border-radius: 999px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding: 22px 0 40px;
  color: var(--text-faint);
  font-size: 13px;
  position: relative;
  z-index: 1;
}
.footer-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
}
.footer a { color: var(--text-dim); text-decoration: none; }
.footer a:hover { color: var(--text); }
.footer-sep { color: var(--line-strong); }

/* ---------- a11y ---------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}