:root {
  --zs-primary: #2563eb;
  --zs-primary-dark: #1e40af;
  --zs-text: #0f172a;
  --zs-muted: #475569;
  --zs-bg: #f8fbff;
  --zs-card: #ffffff;
  --zs-border: #e2e8f0;
  --zs-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  --zs-radius: 1rem;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Manrope", sans-serif;
  color: var(--zs-text);
  background: #ffffff;
  line-height: 1.6;
}

a {
  text-decoration: none;
}

.navbar {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(37, 99, 235, 0.08);
}

.navbar-brand {
  font-weight: 800;
  letter-spacing: 0.3px;
  color: var(--zs-text);
}

.navbar .nav-link {
  color: #334155;
  font-weight: 600;
  transition: color 0.2s ease;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: var(--zs-primary);
}

.btn-zs-primary {
  background: var(--zs-primary);
  color: #fff;
  border-radius: 0.7rem;
  border: 1px solid var(--zs-primary);
  font-weight: 700;
  padding: 0.7rem 1.2rem;
  transition: all 0.2s ease;
}

.btn-zs-primary:hover {
  background: var(--zs-primary-dark);
  border-color: var(--zs-primary-dark);
  color: #fff;
  transform: translateY(-1px);
}

.btn-zs-outline {
  border: 1px solid rgba(37, 99, 235, 0.25);
  color: var(--zs-primary);
  background: #fff;
  border-radius: 0.7rem;
  font-weight: 700;
  padding: 0.7rem 1.2rem;
  transition: all 0.2s ease;
}

.btn-zs-outline:hover {
  border-color: var(--zs-primary);
  color: var(--zs-primary-dark);
}

.hero {
  padding: 7rem 0 5rem;
  background: radial-gradient(circle at 0% 0%, rgba(37, 99, 235, 0.12), transparent 55%),
    radial-gradient(circle at 100% 20%, rgba(96, 165, 250, 0.16), transparent 50%),
    linear-gradient(180deg, #f8fbff 0%, #ffffff 70%);
}

.hero h1 {
  font-size: clamp(2rem, 4.4vw, 3.3rem);
  font-weight: 800;
  line-height: 1.18;
}

.hero p {
  color: var(--zs-muted);
  max-width: 650px;
  margin: 1rem auto 0;
}

.section {
  padding: 5rem 0;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  color: var(--zs-muted);
  max-width: 640px;
  margin: 0 auto;
}

.zs-card {
  border: 1px solid var(--zs-border);
  border-radius: var(--zs-radius);
  background: var(--zs-card);
  box-shadow: var(--zs-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.zs-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.1);
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--zs-primary);
  font-size: 1.3rem;
}

.pricing-card {
  padding: 2rem;
  height: 100%;
}

.plan-name {
  font-weight: 800;
  font-size: 1.15rem;
}

.price {
  font-size: 2rem;
  font-weight: 800;
  margin: 0.8rem 0 1rem;
}

.price small {
  font-size: 0.95rem;
  color: var(--zs-muted);
  font-weight: 600;
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.spec-list li {
  padding: 0.45rem 0;
  color: #1f2937;
}

.muted {
  color: var(--zs-muted);
}

.cta-box {
  background: linear-gradient(125deg, var(--zs-primary), #3b82f6);
  color: #fff;
  border-radius: 1.4rem;
  padding: 2.4rem 2rem;
  box-shadow: var(--zs-shadow);
}

.cta-box h3 {
  font-weight: 800;
  margin-bottom: 0.8rem;
}

.cta-box .btn-zs-light {
  background: #fff;
  color: var(--zs-primary);
  font-weight: 700;
  border-radius: 0.7rem;
  padding: 0.7rem 1.2rem;
  border: none;
}

footer {
  border-top: 1px solid var(--zs-border);
  background: var(--zs-bg);
}

footer a {
  color: #334155;
  font-weight: 600;
}

footer a:hover {
  color: var(--zs-primary);
}

.legal-content {
  background: #fff;
  border: 1px solid var(--zs-border);
  border-radius: var(--zs-radius);
  box-shadow: var(--zs-shadow);
  padding: 2rem;
}

@media (max-width: 991.98px) {
  .hero {
    padding-top: 6rem;
  }

  .navbar .btn-zs-primary {
    width: 100%;
    margin-top: 0.75rem;
  }
}