:root {
  --page-bg: #0b1025;
  --page-bg-alt: #171d3f;
  --card-bg: rgba(20, 26, 57, 0.84);
  --card-border: rgba(119, 239, 227, 0.2);
  --text-main: #eef3ff;
  --text-muted: #a1acd0;
  --accent-primary: #7b4df2;
  --accent-secondary: #77efe3;
  --accent-highlight: #d9deff;
  --shadow-glow: 0 20px 50px rgba(123, 77, 242, 0.18);
  --hero-gradient: linear-gradient(135deg, rgba(123, 77, 242, 0.22), rgba(119, 239, 227, 0.12));
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Space Grotesk', 'Segoe UI', sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top right, rgba(119, 239, 227, 0.12), transparent 28%),
    radial-gradient(circle at top left, rgba(123, 77, 242, 0.2), transparent 36%),
    linear-gradient(180deg, var(--page-bg), #090d1b 55%, #0c1123 100%);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.35;
}

a {
  color: inherit;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 5vw;
  background: rgba(5, 9, 20, 0.88);
  border-bottom: 1px solid var(--card-border);
  backdrop-filter: blur(16px);
}

.site-nav__brand {
  text-decoration: none;
  font-family: 'Unbounded', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-secondary);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.site-nav__links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.94rem;
  font-weight: 600;
}

.site-nav__links a:hover,
.site-nav__links a:focus-visible {
  color: var(--text-main);
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.15rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-primary), #0059a7);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: var(--shadow-glow);
}

.page-shell {
  position: relative;
  z-index: 1;
}

.hero {
  width: min(1200px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 4.5rem 0 3.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 2rem;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid rgba(0, 212, 170, 0.28);
  border-radius: 999px;
  background: rgba(0, 212, 170, 0.08);
  color: var(--accent-secondary);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero__eyebrow::before {
  content: '';
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent-highlight);
  box-shadow: 0 0 12px rgba(244, 197, 66, 0.9);
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: 'Unbounded', sans-serif;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.hero__lede {
  margin: 0 0 1.5rem;
  max-width: 42rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.75rem 0;
}

.hero__stat {
  min-width: 8.5rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--card-border);
  border-radius: 1rem;
  background: rgba(8, 15, 26, 0.56);
}

.hero__stat-value {
  display: block;
  color: var(--accent-highlight);
  font-family: 'Unbounded', sans-serif;
  font-size: 1.35rem;
}

.hero__stat-label {
  display: block;
  margin-top: 0.35rem;
  color: var(--text-muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.3rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent-primary), #0057a4);
  color: #fff;
}

.btn--secondary {
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
}

.hero__panel {
  padding: 1.5rem;
  border: 1px solid var(--card-border);
  border-radius: 1.4rem;
  background: var(--hero-gradient), var(--card-bg);
  box-shadow: var(--shadow-glow);
}

.hero__panel h2 {
  margin: 0 0 0.9rem;
  font-size: 1.15rem;
}

.hero__panel p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.hero__panel-list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero__panel-list li {
  padding: 0.8rem 0.9rem;
  border-radius: 1rem;
  background: rgba(7, 13, 24, 0.52);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.hero__panel-list strong {
  display: block;
  color: var(--accent-highlight);
  margin-bottom: 0.25rem;
}

.content-section {
  width: min(1200px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 1rem 0 4rem;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.section-heading__kicker {
  color: var(--accent-secondary);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-heading__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(0, 212, 170, 0.35), transparent);
}

.content-section h2 {
  margin: 0 0 0.5rem;
  font-family: 'Unbounded', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.15;
}

.content-section > p {
  margin: 0 0 1.5rem;
  max-width: 52rem;
  color: var(--text-muted);
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.card {
  padding: 1.35rem;
  border: 1px solid var(--card-border);
  border-radius: 1.2rem;
  background: var(--card-bg);
}

.card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.05rem;
}

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

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1rem;
}

.badge {
  padding: 0.42rem 0.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  font-size: 0.76rem;
  font-weight: 700;
}

.translation-card {
  position: relative;
  overflow: hidden;
}

.translation-card::after {
  content: '';
  position: absolute;
  inset: auto -35% -35% auto;
  width: 10rem;
  height: 10rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.12), transparent 70%);
}

.translation-card strong {
  display: inline-block;
  margin-bottom: 0.7rem;
  color: var(--accent-highlight);
}

.syllabus {
  display: grid;
  gap: 1rem;
}

.syllabus details {
  border: 1px solid var(--card-border);
  border-radius: 1.1rem;
  background: var(--card-bg);
  overflow: hidden;
}

.syllabus summary {
  cursor: pointer;
  list-style: none;
  padding: 1.15rem 1.2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  font-weight: 700;
}

.syllabus summary::-webkit-details-marker {
  display: none;
}

.syllabus summary span {
  color: var(--text-muted);
  font-size: 0.86rem;
  font-weight: 600;
}

.syllabus__content {
  padding: 0 1.2rem 1.2rem;
  color: var(--text-muted);
}

.syllabus__content h4 {
  margin: 1rem 0 0.4rem;
  color: var(--text-main);
  font-size: 0.95rem;
}

.syllabus__content ul {
  margin: 0;
  padding-left: 1.2rem;
}

.syllabus__content li + li {
  margin-top: 0.35rem;
}

.quote-box {
  margin-top: 1rem;
  padding: 1rem;
  border-left: 3px solid var(--accent-secondary);
  border-radius: 0.9rem;
  background: rgba(0, 212, 170, 0.08);
  color: #d7f8f0;
}

.lab-card h3,
.domain-card h3 {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.lab-card a,
.cta-panel a {
  color: #fff;
}

.cta-panel {
  display: grid;
  gap: 1rem;
  align-items: center;
  grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.9fr);
  padding: 1.5rem;
  border: 1px solid rgba(244, 197, 66, 0.24);
  border-radius: 1.4rem;
  background: linear-gradient(135deg, rgba(244, 197, 66, 0.1), rgba(0, 120, 212, 0.14));
}

.cta-panel h2 {
  margin-bottom: 0.6rem;
}

.cta-panel p {
  margin: 0;
  color: var(--text-muted);
}

.cta-panel__price {
  padding: 1.2rem;
  border-radius: 1.15rem;
  background: rgba(8, 15, 26, 0.54);
  text-align: center;
}

.cta-panel__price strong {
  display: block;
  margin-bottom: 0.35rem;
  font-family: 'Unbounded', sans-serif;
  font-size: 2rem;
  color: var(--accent-highlight);
}

.footer {
  width: min(1200px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 0 0 3rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .hero,
  .cta-panel,
  .grid--three,
  .grid--two {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-nav {
    padding: 1rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav__links {
    gap: 0.85rem;
  }

  .hero,
  .content-section,
  .footer {
    width: min(100% - 1.5rem, 1200px);
  }

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