/* ===========================
   Design tokens — shared
   =========================== */
:root {
  --bg: #07090c;
  --bg-2: #0c1014;
  --surface: #11161c;
  --surface-2: #161c24;
  --surface-3: #1c232c;
  --border: #1f2730;
  --border-2: #2a333e;
  --text: #e7edf3;
  --muted: #8b96a3;
  --muted-2: #6a7380;
  --accent: #5eead4;
  --accent-2: #38bdf8;
  --accent-3: #a78bfa;
  --danger: #f87171;
  --warn: #fbbf24;
  --radius: 14px;
  --radius-lg: 18px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
  --grad: linear-gradient(135deg, #5eead4 0%, #38bdf8 50%, #a78bfa 100%);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

/* ===========================
   Buttons (shared)
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 11px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.06s ease, opacity 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  font-family: inherit;
}
.btn-sm { padding: 7px 12px; font-size: 13px; border-radius: 8px; }

.btn-primary {
  color: #04141a;
  background: var(--grad);
  border: none;
  box-shadow: 0 6px 20px rgba(94, 234, 212, 0.18);
}
.btn-primary:hover { transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.5; cursor: progress; transform: none; }

.btn-ghost {
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border-2);
}
.btn-ghost:hover { border-color: #3a4654; background: rgba(255,255,255,0.02); }

/* ===========================
   Landing page
   =========================== */
.landing {
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(94,234,212,0.10) 0%, transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(167,139,250,0.10) 0%, transparent 55%),
    var(--bg);
  min-height: 100vh;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px 28px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.01em; }
.brand-mark {
  display: inline-grid; place-items: center;
  width: 28px; height: 28px;
  border-radius: 8px;
  background: var(--grad);
  color: #04141a;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(94,234,212,0.25);
}
.brand-name { font-size: 15px; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { color: var(--muted); font-size: 14px; }
.nav-links a:hover { color: var(--text); }
.nav-links .btn-primary { color: #04141a; }

.hero {
  max-width: 920px;
  margin: 0 auto;
  padding: 72px 28px 40px;
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--surface);
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(34px, 6vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
  font-weight: 800;
}
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lead {
  font-size: 17px;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 26px;
}
.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-row.center { margin-top: 24px; }
.hero-meta {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 28px;
  color: var(--muted-2);
  font-size: 13px;
}

.features {
  max-width: 1120px;
  margin: 60px auto 0;
  padding: 0 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feature {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: transform 0.15s ease, border-color 0.2s ease;
}
.feature:hover { transform: translateY(-2px); border-color: var(--border-2); }
.feat-icon { font-size: 26px; margin-bottom: 10px; }
.feature h3 { margin: 0 0 6px; font-size: 16px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }

.how {
  max-width: 920px;
  margin: 80px auto 60px;
  padding: 0 28px;
  text-align: center;
}
.how h2 {
  font-size: 28px;
  margin: 0 0 24px;
  letter-spacing: -0.02em;
}
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  text-align: left;
}
.steps li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.steps li span {
  display: grid; place-items: center;
  width: 30px; height: 30px;
  border-radius: 8px;
  background: var(--grad);
  color: #04141a;
  font-weight: 800;
  flex-shrink: 0;
}
.steps strong { display: block; margin-bottom: 4px; }
.steps p { margin: 0; color: var(--muted); font-size: 14px; }

.footer {
  max-width: 1120px;
  margin: 60px auto 0;
  padding: 30px 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}
.footer-links { display: flex; gap: 16px; }
.footer-links a:hover { color: var(--text); }

@media (max-width: 820px) {
  .features { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .nav-links a:not(.btn) { display: none; }
}