:root {
  color-scheme: dark;
  --bg: #08101f;
  --surface: #111f33;
  --surface-alt: #15243f;
  --text: #eef3fb;
  --muted: #92a4c7;
  --primary: #4e9cff;
  --primary-dark: #3377e1;
  --accent: #6fcb9f;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, rgba(78, 156, 255, 0.15), transparent 30%),
    radial-gradient(circle at 20% 20%, rgba(111, 203, 159, 0.12), transparent 25%),
    var(--bg);
  color: var(--text);
}

body {
  line-height: 1.6;
}

img {
  max-width: 100%;
}

button, input, select {
  font: inherit;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.topbar {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(8, 16, 31, 0.9);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-mark {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 16px;
  font-weight: 800;
  color: #fff;
  font-size: 1.35rem;
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
}

.hero {
  padding: 5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
}

.hero-copy h2 {
  margin: 0;
  font-size: clamp(2.3rem, 3vw, 3.5rem);
  line-height: 1.02;
}

.hero-text {
  max-width: 42rem;
  color: var(--muted);
  margin: 1.25rem 0 2rem;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-card {
  background: linear-gradient(180deg, rgba(17, 32, 55, 0.95), rgba(17, 32, 55, 0.82));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.25);
}

.hero-card-inner {
  display: grid;
  gap: 1rem;
}

.small-heading {
  color: var(--primary);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
}

.hero-card ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.75rem;
  color: var(--muted);
}

.section-header {
  text-align: center;
  padding-bottom: 1.5rem;
}

.section-header h2 {
  margin: 0.5rem 0 0;
  font-size: clamp(2rem, 2.5vw, 2.75rem);
}

.section-header p {
  margin: 1rem auto 0;
  max-width: 680px;
  color: var(--muted);
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.package-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2rem;
  display: grid;
  gap: 1.25rem;
}

.package-card.recommended {
  border-color: rgba(78, 156, 255, 0.35);
  box-shadow: 0 18px 50px rgba(46, 93, 199, 0.15);
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8rem;
  color: #fff;
  background: var(--primary);
  width: fit-content;
}

.package-card h3 {
  margin: 0;
  font-size: 1.4rem;
}

.price {
  margin: 0;
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
}

.package-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.85rem;
  color: var(--muted);
}

.package-card li::before {
  content: "•";
  margin-right: 0.6rem;
  color: var(--accent);
}

.signup {
  margin-top: 4rem;
  padding: 3rem 0;
}

.signup-content {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 2rem;
  align-items: start;
}

.signup-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.signup-card form {
  display: grid;
  gap: 1rem;
}

.signup-card label {
  font-size: 0.95rem;
  color: var(--text);
}

.signup-card input,
.signup-card select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 0.95rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.signup-card input:focus,
.signup-card select:focus {
  outline: none;
  border-color: rgba(78, 156, 255, 0.65);
  box-shadow: 0 0 0 4px rgba(78, 156, 255, 0.12);
}

.contact {
  margin: 4rem 0 3rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.contact-cards {
  display: grid;
  gap: 1rem;
}

.contact-card {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.4rem;
}

.contact-card h3 {
  margin: 0 0 0.75rem;
}

.contact-card p {
  margin: 0;
  color: var(--muted);
}

.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.75rem 0;
  text-align: center;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.6rem;
  border-radius: 999px;
  border: none;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}

.btn-secondary,
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text);
}

.btn-outline:hover,
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
}

@media (max-width: 980px) {
  .hero-grid,
  .signup-content,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .package-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .header-inner,
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .package-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    padding: 0 0.5rem;
  }

  .hero {
    padding-top: 3rem;
  }
}