/* ====== Basic reset ====== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ====== Global styles ====== */
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0b1020;
  color: #f5f5f7;
  line-height: 1.6;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ====== Header / nav ====== */
.site-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5, 7, 15, 0.95);
  backdrop-filter: blur(12px);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.03em;
  font-size: 1.05rem;
}

.logo span {
  color: #4ade80;
}

.nav-links {
  display: flex;
  gap: 20px;
  font-size: 0.95rem;
}

.nav-links a {
  opacity: 0.8;
}

.nav-links a:hover {
  opacity: 1;
}

/* ====== Hero ====== */
.hero {
  padding: 80px 0 60px;
  background: radial-gradient(circle at top left, #1e293b, #020617);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 40px;
  align-items: center;
}

.hero-kicker {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  opacity: 0.8;
  margin-bottom: 14px;
}

.hero-title {
  font-size: 2.5rem;
  margin-bottom: 14px;
}

.hero-title span {
  color: #4ade80;
}

.hero-subtitle {
  font-size: 1rem;
  opacity: 0.85;
  max-width: 32rem;
  margin-bottom: 24px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.16s ease-out;
}

.btn-primary {
  background: linear-gradient(135deg, #4ade80, #22c55e);
  color: #022c22;
  font-weight: 600;
}

.btn-primary:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.btn-secondary {
  border-color: rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.7);
}

.btn-secondary:hover {
  background: rgba(15, 23, 42, 1);
}

/* Hero side card */
.hero-card {
  border-radius: 16px;
  background: radial-gradient(circle at top, rgba(74, 222, 128, 0.12), transparent),
              rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.25);
  padding: 20px 18px;
  font-size: 0.9rem;
}

/* ====== Sections ====== */
.section {
  padding: 56px 0;
  border-top: 1px solid rgba(15, 23, 42, 1);
}

.section-light {
  background: #020617;
}

.section-title {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.section-intro {
  opacity: 0.8;
  font-size: 0.95rem;
  margin-bottom: 28px;
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}

.feature-card {
  border-radius: 14px;
  padding: 16px 16px 18px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(30, 64, 175, 0.45);
}

.feature-title {
  font-size: 1rem;
  margin-bottom: 6px;
}

.feature-pill {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.1);
  color: #7dd3fc;
  margin-bottom: 10px;
}

.feature-text {
  font-size: 0.9rem;
  opacity: 0.85;
}

/* ====== Footer ====== */
.site-footer {
  border-top: 1px solid rgba(15, 23, 42, 1);
  padding: 22px 0 26px;
  background: #020617;
  font-size: 0.8rem;
  opacity: 0.8;
}

/* ====== Responsive ====== */
@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero {
    padding-top: 64px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .nav-links {
    display: none; /* keep simple for v1 */
  }
}