:root {
  --bg: #0a0e17;
  --bg-surface: #111827;
  --bg-card: #161f32;
  --fg: #e2e8f0;
  --fg-muted: #94a3b8;
  --accent: #22d3a7;
  --accent-glow: rgba(34, 211, 167, 0.15);
  --accent-dim: #1a9e7e;
  --border: rgba(148, 163, 184, 0.1);
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-display);
  line-height: 1.6;
  overflow-x: hidden;
}

.accent {
  color: var(--accent);
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
  background: var(--accent-glow);
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.25;
  pointer-events: none;
}

.radar-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--accent);
}

.ring-1 { width: 300px; height: 300px; opacity: 0.6; }
.ring-2 { width: 500px; height: 500px; opacity: 0.35; }
.ring-3 { width: 720px; height: 720px; opacity: 0.15; }

.radar-sweep {
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, var(--accent-glow) 40deg, transparent 80deg);
  animation: sweep 4s linear infinite;
}

@keyframes sweep {
  to { transform: rotate(360deg); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- FEATURES ---- */
.features {
  padding: 6rem 1.5rem;
  max-width: 1080px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: var(--accent-dim);
}

.feature-large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(34, 211, 167, 0.06) 100%);
  border-color: rgba(34, 211, 167, 0.2);
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ---- HOW / COMPARISON ---- */
.how {
  padding: 6rem 1.5rem;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.how h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.comparison {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 640px) {
  .comparison {
    grid-template-columns: 1fr 1fr;
  }
}

.comp-col {
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.comp-col.highlight {
  border-color: var(--accent-dim);
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(34, 211, 167, 0.08) 100%);
}

.comp-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  margin-bottom: 0.5rem;
}

.comp-item {
  font-size: 1rem;
  font-weight: 500;
  padding: 0.5rem 0;
}

.comp-plus {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

.comp-result {
  margin-top: 0.75rem;
  font-weight: 600;
  font-size: 1.1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  width: 100%;
  text-align: center;
}

.dim {
  opacity: 0.5;
}

.highlight .comp-item {
  color: var(--accent);
}

.highlight .comp-result {
  color: var(--accent);
  border-color: rgba(34, 211, 167, 0.2);
}

/* ---- CLOSING ---- */
.closing {
  padding: 8rem 1.5rem;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.75;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: 3rem 1.5rem;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-weight: 600;
  font-size: 1rem;
  color: var(--fg);
}

.footer-note {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

.footer-note a {
  color: var(--accent);
  text-decoration: none;
}

.footer-note a:hover {
  text-decoration: underline;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 480px) {
  .hero {
    min-height: 85vh;
    padding: 3rem 1.25rem;
  }
  .ring-1 { width: 200px; height: 200px; }
  .ring-2 { width: 320px; height: 320px; }
  .ring-3 { width: 440px; height: 440px; }
  .radar-sweep { width: 220px; height: 220px; }
  .features { padding: 3rem 1.25rem; }
  .how { padding: 3rem 1.25rem; }
  .closing { padding: 4rem 1.25rem; }
  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}
/* ---- HERO CTAs ---- */
.hero-ctas {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2.5rem;
}

.cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--accent);
  color: #0a0e17;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.8rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
}
.cta-primary:hover { background: #28e8b8; transform: translateY(-1px); }

.cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--accent-glow);
  color: var(--accent);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.8rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  border: 1px solid var(--accent-dim);
  transition: background 0.15s, transform 0.1s;
}
.cta-secondary:hover { background: rgba(34, 211, 167, 0.25); transform: translateY(-1px); }