:root {
  --bg:           #1a181c;
  --surface:      #232128;
  --surface-2:    #2c2932;
  --surface-hov:  #353240;
  --line:         rgba(255, 255, 255, 0.05);
  --line-strong:  rgba(255, 255, 255, 0.09);
  --text:         #f1efe9;
  --text-2:       #a39d94;
  --text-3:       #6c675f;
  --accent:       #4a7fd1;
  --accent-bright:#6b9bea;
  --accent-soft:  rgba(74, 127, 209, 0.16);
  --success:      #5fcc8f;
  --success-soft: rgba(95, 204, 143, 0.14);
  --warn:         #f5b347;
  --danger:       #ff6b6b;
  --r-card:       16px;
  --r-button:     12px;
  --r-pill:       999px;
  --shadow-soft:  0 8px 24px rgba(0, 0, 0, 0.18);
  --shadow-key:   0 16px 48px rgba(0, 0, 0, 0.4);
  --shadow-glow:  0 12px 32px rgba(74, 127, 209, 0.25);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(74, 127, 209, 0.12), transparent 70%),
    radial-gradient(ellipse 60% 40% at 90% 20%, rgba(95, 204, 143, 0.04), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 28px;
  position: relative;
  z-index: 1;
}

/* ---- Navbar ---- */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  font-weight: 800; font-size: 20px; letter-spacing: -0.015em;
  color: var(--text); text-decoration: none;
}
.brand-mark {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-bright) 100%);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 800; font-size: 11.5px; letter-spacing: 0.04em;
  box-shadow: 0 4px 12px var(--accent-soft);
}
.nav-links { display: flex; gap: 6px; align-items: center; }
.nav-link {
  color: var(--text-2); text-decoration: none;
  font-size: 13.5px; font-weight: 500;
  padding: 8px 14px; border-radius: var(--r-button);
  transition: all 140ms ease;
}
.nav-link:hover { color: var(--text); background: var(--surface-2); }

/* ---- Buttons ---- */
.btn-primary, .btn-secondary {
  font: 600 14px var(--font);
  padding: 11px 22px; border-radius: var(--r-button);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 10px;
  transition: all 140ms ease;
  border: 0; cursor: pointer;
}
.btn-primary {
  background: var(--accent); color: white;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { background: var(--accent-bright); transform: translateY(-1px); }
.btn-secondary {
  background: transparent; color: var(--text);
  border: 1px solid var(--line-strong);
}
.btn-secondary:hover { background: var(--surface-2); border-color: var(--accent); }
.btn-primary.large, .btn-secondary.large {
  font-size: 15px; padding: 14px 28px;
}
.btn-primary .price {
  background: rgba(255, 255, 255, 0.18);
  padding: 4px 9px; border-radius: 6px;
  font-size: 13px; font-weight: 700;
}

/* ---- Section primitives ---- */
.section-eyebrow {
  text-align: center;
  font-size: 11px; font-weight: 700; letter-spacing: 0.12em;
  color: var(--accent-bright); text-transform: uppercase;
  margin: 0 0 14px;
}
.section-title {
  text-align: center;
  font-size: 36px; font-weight: 800;
  letter-spacing: -0.02em; line-height: 1.12;
  margin: 0 auto 18px; max-width: 700px;
}
.section-sub {
  text-align: center;
  color: var(--text-2);
  font-size: 16px; line-height: 1.55;
  max-width: 600px; margin: 0 auto 56px;
}
.eyebrow {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: 0.12em;
  color: var(--accent-bright);
  text-transform: uppercase;
  background: var(--accent-soft);
  padding: 6px 14px; border-radius: var(--r-pill);
  margin-bottom: 22px;
  border: 1px solid rgba(74, 127, 209, 0.25);
}

/* ---- Footer ---- */
footer { border-top: 1px solid var(--line); margin-top: 40px; }
.footer {
  padding: 32px 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-3);
  font-size: 13px;
}
.footer-links { display: flex; gap: 22px; }
.footer-links a {
  color: var(--text-3); text-decoration: none;
  transition: color 140ms ease;
}
.footer-links a:hover { color: var(--text); }

/* ---- Responsive base ---- */
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .nav-links .nav-link { display: none; }
  .section-title { font-size: 28px; }
  .footer { flex-direction: column; gap: 14px; }
}