:root {
  --background: #07111f;
  --surface: #0d1b2d;
  --surface-soft: #12243a;
  --text: #f7f9fc;
  --muted: #aab8ca;
  --primary: #66e0c2;
  --primary-dark: #102a2a;
  --border: rgba(255, 255, 255, 0.10);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 80% 8%, rgba(102, 224, 194, 0.14), transparent 34%),
    linear-gradient(180deg, #07111f 0%, #091626 100%);
  line-height: 1.6;
}

a {
  color: inherit;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(7, 17, 31, 0.76);
  border-bottom: 1px solid var(--border);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--primary);
  color: #07111f;
  box-shadow: 0 10px 30px rgba(102, 224, 194, 0.25);
}

.nav-cta {
  text-decoration: none;
  font-weight: 700;
  color: var(--primary);
}

.hero {
  padding: 96px 0 76px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 54px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(2.65rem, 6vw, 5.4rem);
  line-height: 0.99;
  letter-spacing: -0.055em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.hero-text {
  max-width: 670px;
  color: var(--muted);
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 34px 0 26px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: 14px;
  font-weight: 850;
  text-decoration: none;
  transition: transform 160ms ease, opacity 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--primary);
  color: #06111d;
}

.button-secondary {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.035);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.hero-card,
.feature-card,
.cta-panel {
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero-card {
  position: relative;
  overflow: hidden;
  padding: 38px;
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02)),
    var(--surface);
}

.card-glow {
  position: absolute;
  width: 220px;
  height: 220px;
  top: -100px;
  right: -70px;
  border-radius: 50%;
  background: rgba(102, 224, 194, 0.19);
  filter: blur(18px);
}

.course-badge {
  display: inline-flex;
  padding: 8px 11px;
  margin-bottom: 34px;
  border-radius: 999px;
  background: rgba(102, 224, 194, 0.13);
  color: var(--primary);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.small-label {
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-card h2 {
  font-size: 2.1rem;
}

.hero-card > p {
  color: var(--muted);
}

.feature-list {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.feature-list > div {
  display: flex;
  align-items: center;
  gap: 13px;
}

.icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(102, 224, 194, 0.1);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 900;
}

.details {
  padding: 84px 0;
  background: rgba(255, 255, 255, 0.022);
  border-block: 1px solid var(--border);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 42px;
}

.section-heading p,
.feature-card p,
.cta-panel p,
.disclaimer {
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 30px;
  border-radius: 20px;
  background: var(--surface);
}

.feature-number {
  color: var(--primary);
  font-weight: 900;
  font-size: 0.8rem;
}

.feature-card h3 {
  margin-top: 28px;
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.cta-section {
  padding: 84px 0;
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  padding: 48px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(102, 224, 194, 0.19), rgba(102, 224, 194, 0.04)),
    var(--surface);
}

.cta-panel > div {
  max-width: 700px;
}

.cta-panel h2 {
  margin-bottom: 14px;
}

.button-light {
  flex: 0 0 auto;
  background: var(--text);
  color: #06111d;
}

footer {
  padding: 30px 0 46px;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: grid;
  gap: 8px;
}

.footer-content p {
  margin-bottom: 0;
}

.disclaimer {
  max-width: 850px;
  font-size: 0.82rem;
}

@media (max-width: 860px) {
  .hero {
    padding-top: 68px;
  }

  .hero-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 38px;
  }

  .cta-panel {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .hero {
    padding: 54px 0 58px;
  }

  h1 {
    font-size: 2.75rem;
  }

  .hero-card,
  .feature-card,
  .cta-panel {
    padding: 26px;
  }

  .button {
    width: 100%;
  }

  .hero-actions {
    display: grid;
  }

  .trust-row {
    display: grid;
    gap: 8px;
  }
}