:root {
  --bg: #020617;
  --bg-elevated: #020617;
  --card: #020617;
  --card-soft: #020617;
  --accent: #4f46e5;
  --accent-soft: rgba(79, 70, 229, 0.12);
  --text: #e5e7eb;
  --text-soft: #9ca3af;
  --border-subtle: rgba(148, 163, 184, 0.35);
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.8);
  --shadow-subtle: 0 0 0 1px rgba(15, 23, 42, 0.9);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #020617 0%, #020617 52%, #000 100%);
  color: var(--text);
}

body {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: radial-gradient(circle at top left, rgba(79, 70, 229, 0.18), transparent 55%),
              radial-gradient(circle at top right, rgba(14, 165, 233, 0.16), transparent 55%),
              rgba(2, 6, 23, 0.92);
  border-bottom: 1px solid rgba(148, 163, 184, 0.3);
}

.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.6rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  text-decoration: none;
  color: var(--text);
  background: radial-gradient(circle at top left, rgba(79, 70, 229, 0.2), transparent 55%),
              rgba(15, 23, 42, 0.9);
  box-shadow: var(--shadow-subtle);
}

.logo span {
  opacity: 0.7;
}

.nav a {
  margin-left: 1.1rem;
  font-size: 0.85rem;
  color: var(--text-soft);
  text-decoration: none;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
}

.nav a:hover {
  color: var(--text);
  border-color: rgba(148, 163, 184, 0.55);
  background: radial-gradient(circle at top, rgba(148, 163, 184, 0.15), transparent 60%);
}

.page {
  max-width: 1100px;
  margin: 1.6rem auto 3rem;
  padding: 0 1.5rem 2.5rem;
}

.section-title {
  font-size: 1.2rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin: 0 0 1.3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 1.75rem;
  align-items: stretch;
}

.hero-card {
  border-radius: 26px;
  padding: 1.5rem 1.6rem;
  background:
    radial-gradient(circle at top left, rgba(79, 70, 229, 0.35), transparent 55%),
    radial-gradient(circle at bottom right, rgba(8, 47, 73, 0.7), transparent 55%),
    radial-gradient(circle at bottom left, rgba(0, 0, 0, 0.9), #020617);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.5);
  position: relative;
  overflow: hidden;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 0, rgba(248, 250, 252, 0.04), transparent 55%),
    radial-gradient(circle at 80% 120%, rgba(59, 130, 246, 0.18), transparent 55%);
  mix-blend-mode: screen;
  pointer-events: none;
}

.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: rgba(226, 232, 240, 0.8);
}

.hero-title {
  margin-top: 0.7rem;
  font-size: 1.9rem;
  letter-spacing: 0.03em;
}

.hero-subtitle {
  margin-top: 0.5rem;
  color: var(--text-soft);
  font-size: 0.94rem;
  line-height: 1.6;
  max-width: 38rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--text-soft);
}

.tag {
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: linear-gradient(to bottom right, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.98));
}

.hero-actions {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.button-primary,
.button-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-size: 0.82rem;
  text-decoration: none;
  border: 1px solid rgba(148, 163, 184, 0.7);
  cursor: pointer;
}

.button-primary {
  background: radial-gradient(circle at top left, rgba(129, 140, 248, 0.48), rgba(79, 70, 229, 0.96));
  color: #e5e7eb;
  box-shadow: 0 10px 25px rgba(30, 64, 175, 0.7);
}

.button-primary:hover {
  filter: brightness(1.05);
}

.button-ghost {
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.98), rgba(2, 6, 23, 1));
  color: var(--text-soft);
}

.button-ghost:hover {
  color: var(--text);
  border-color: rgba(191, 219, 254, 0.7);
}

.hero-right {
  border-radius: 22px;
  padding: 1.1rem 1.2rem 1.25rem;
  background:
    radial-gradient(circle at top right, rgba(59, 130, 246, 0.2), transparent 55%),
    radial-gradient(circle at bottom left, rgba(8, 47, 73, 0.65), transparent 55%),
    #020617;
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: var(--shadow-soft);
}

.hero-right-title {
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: rgba(148, 163, 184, 0.9);
  margin-bottom: 0.65rem;
}

.hero-right-item {
  font-size: 0.86rem;
  color: var(--text-soft);
  display: flex;
  justify-content: space-between;
  padding: 0.45rem 0.5rem;
  border-radius: 12px;
  border: 1px dashed rgba(148, 163, 184, 0.35);
  margin-bottom: 0.4rem;
}

.hero-right-item span:first-child {
  opacity: 0.85;
}

.hero-right-item span:last-child {
  opacity: 0.7;
  font-variant-numeric: tabular-nums;
}

.columns-2 {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
  gap: 1.5rem;
  margin-top: 1.8rem;
}

.card {
  border-radius: 20px;
  padding: 1.25rem 1.3rem;
  background:
    radial-gradient(circle at top left, rgba(79, 70, 229, 0.16), transparent 55%),
    radial-gradient(circle at bottom right, rgba(15, 23, 42, 0.9), #020617);
  border: 1px solid rgba(148, 163, 184, 0.55);
  box-shadow: var(--shadow-subtle);
}

.card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-soft);
  line-height: 1.6;
}

.card ul {
  margin: 0.55rem 0 0;
  padding-left: 1.2rem;
  font-size: 0.85rem;
  color: var(--text-soft);
}

.card li + li {
  margin-top: 0.2rem;
}

.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(148, 163, 184, 0.9);
  margin-bottom: 0.4rem;
}

.footer {
  border-top: 1px solid rgba(30, 64, 175, 0.6);
  padding: 1rem 1.5rem 1.4rem;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(148, 163, 184, 0.8);
  background: radial-gradient(circle at bottom, rgba(15, 23, 42, 1), #000);
}

@media (max-width: 800px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .columns-2 {
    grid-template-columns: minmax(0, 1fr);
  }
}