:root {
  --bg: #05060a;
  --bg-alt: #0d111a;
  --card: rgba(255, 255, 255, 0.06);
  --accent: #34d399;
  --accent-2: #7c3aed;
  --text: #f4f6fb;
  --muted: #b5bfd5;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #05060a 0%, #10192c 50%, #05060a 100%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

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

.section {
  padding: 5rem clamp(1.5rem, 6vw, 6rem);
}

.section--alt {
  background: rgba(255, 255, 255, 0.02);
}

.section__header {
  max-width: 780px;
  margin-bottom: 2.5rem;
}

.section__header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.section__header p {
  color: var(--muted);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.site-header {
  padding: 1.5rem clamp(1.5rem, 6vw, 6rem) 4rem;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  gap: 1.5rem;
}

.nav__brand {
  font-weight: 700;
  font-size: 1.5rem;
}

.nav__brand span {
  color: var(--accent);
}

.nav__links {
  list-style: none;
  display: flex;
  gap: 1.25rem;
}

.nav__links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav__links a:hover {
  color: var(--text);
}

.nav__cta {
  border: 1px solid var(--accent);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  font-size: 0.9rem;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 0.35rem;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
}

.hero {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  align-items: center;
}

.hero__content h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
}

.lead {
  color: var(--muted);
  font-size: 1.1rem;
}

.hero__actions {
  margin: 1.5rem 0;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 0.85rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn--primary {
  background: linear-gradient(120deg, var(--accent) 0%, #4ade80 100%);
  color: #041108;
}

.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text);
  background: transparent;
}

.btn:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.hero__stats {
  margin-top: 2rem;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.hero__stats span {
  font-size: 2rem;
  font-weight: 600;
}

.hero__card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.hero__card .title {
  color: var(--muted);
  margin-bottom: 1rem;
}

.hero__card ul {
  list-style: none;
  margin-bottom: 1rem;
  color: var(--text);
}

.hero__card li + li {
  margin-top: 0.4rem;
}

.hero__card .link {
  color: var(--accent);
  font-weight: 600;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card,
.program-card,
.platform-card,
.chip-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1.2rem;
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.card h3,
.platform-card__label,
.program-card__meta {
  margin-bottom: 0.75rem;
}

.card ul,
.platform-card ul,
.program-card ul {
  margin-top: 1rem;
  color: var(--muted);
  padding-left: 1.2rem;
}

.card ol {
  margin-top: 1rem;
  padding-left: 1.2rem;
  color: var(--muted);
}

.platform-card__label,
.program-card__meta {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.chip-card {
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(145deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.timeline {
  margin-top: 1.5rem;
}

.timeline__steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.75rem;
}

.timeline__step {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 0.75rem;
  border-radius: 0.8rem;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
}

.timeline__step.is-active {
  background: var(--accent-2);
  color: #fff;
  border-color: transparent;
}

.timeline__detail {
  margin-top: 1.25rem;
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  min-height: 150px;
}

.timeline__detail h4 {
  margin-bottom: 0.75rem;
}

.toolkit {
  margin-top: 2.5rem;
  border: 1px solid var(--border);
  border-radius: 1.2rem;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.03);
}

.toolkit__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.cta {
  margin: 5rem clamp(1.5rem, 6vw, 6rem);
  padding: 3rem;
  border-radius: 1.5rem;
  background: linear-gradient(130deg, rgba(52, 211, 153, 0.2), rgba(124, 58, 237, 0.2));
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

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

.footer {
  padding: 2rem;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.4);
}

@media (max-width: 900px) {
  .nav__links {
    position: absolute;
    top: 100%;
    right: 0;
    background: #06070b;
    padding: 1.25rem;
    border-radius: 1rem;
    flex-direction: column;
    align-items: flex-start;
    box-shadow: var(--shadow);
    display: none;
  }

  .nav__links.is-open {
    display: flex;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__cta {
    display: none;
  }
}