:root {
  --z-color-bg-canvas: #080911;
  --z-color-bg-elevated: #11141c;
  --z-color-surface-default: rgba(255, 255, 255, 0.04);
  --z-color-surface-strong: rgba(255, 255, 255, 0.07);
  --z-color-border-default: #2c3347;
  --z-color-border-subtle: #232838;
  --z-color-text-primary: #f7f9fc;
  --z-color-text-secondary: #b8c0cf;
  --z-color-text-muted: #8a93a3;
  --z-color-accent-primary: #7aa2ff;
  --z-color-accent-cyan: #56a6f5;
  --z-color-accent-purple: #320070;
  --z-color-success: #2bb673;
  --z-color-warning: #f0a93e;
  --z-color-error: #e35d6a;

  --z-font-family: Manrope, Inter, ui-sans-serif, system-ui, sans-serif;
  --z-font-size-14: 14px;
  --z-font-size-16: 16px;
  --z-font-size-18: 18px;
  --z-font-size-20: 20px;
  --z-font-size-32: clamp(28px, 3vw, 40px);
  --z-font-size-display: clamp(34px, 5vw, 56px);
  --z-line-default: 1.6;
  --z-weight-medium: 500;
  --z-weight-semibold: 600;
  --z-weight-bold: 700;

  --z-space-2: 8px;
  --z-space-3: 12px;
  --z-space-4: 16px;
  --z-space-5: 20px;
  --z-space-6: 24px;
  --z-space-8: 32px;
  --z-space-10: 40px;

  --z-radius-md: 12px;
  --z-radius-lg: 16px;
  --z-radius-full: 999px;
  --z-shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.24);
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--z-font-family);
  color: var(--z-color-text-primary);
  background: radial-gradient(circle at 12% 14%, #1d2550 0%, var(--z-color-bg-canvas) 45%, #05070f 100%);
  overflow-x: hidden;
}

a {
  color: inherit;
}

.focus-visible:focus-visible {
  outline: 2px solid var(--z-color-accent-primary);
  outline-offset: 2px;
}

.ds-glow {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

.ds-glow-cyan {
  background: var(--z-color-accent-cyan);
  top: -130px;
  left: -100px;
}

.ds-glow-purple {
  background: var(--z-color-accent-primary);
  right: -110px;
  top: 160px;
}

.ds-layout {
  display: flex;
  min-height: 100vh;
}

.ds-sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 300px;
  border-right: 1px solid var(--z-color-border-default);
  background: rgba(17, 20, 28, 0.9);
  backdrop-filter: blur(10px);
  overflow-y: auto;
  z-index: 2;
}

.ds-sidebar-header {
  padding: var(--z-space-5);
  border-bottom: 1px solid var(--z-color-border-subtle);
}

.ds-brand {
  display: inline-flex;
  flex-direction: column;
  text-decoration: none;
}

.ds-brand-title {
  font-size: var(--z-font-size-20);
  font-weight: var(--z-weight-bold);
}

.ds-brand-subtitle {
  font-size: var(--z-font-size-14);
  color: var(--z-color-text-secondary);
}

.ds-sidebar-nav {
  padding: var(--z-space-5);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ds-sidebar-nav a {
  text-decoration: none;
  color: var(--z-color-text-secondary);
  border-radius: var(--z-radius-md);
  border: 1px solid transparent;
  padding: 9px 10px;
  font-size: var(--z-font-size-14);
  font-weight: var(--z-weight-medium);
  transition: 120ms ease;
}

.ds-sidebar-nav a:hover,
.ds-sidebar-nav a.is-active {
  color: var(--z-color-text-primary);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(122, 162, 255, 0.3);
}

.ds-main {
  width: 100%;
  margin-left: 300px;
  padding: var(--z-space-8) var(--z-space-6);
  position: relative;
  z-index: 1;
}

.ds-shell {
  width: min(1100px, 100%);
  margin-inline: auto;
}

.ds-hero {
  margin-bottom: var(--z-space-8);
}

.ds-badge {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: var(--z-radius-full);
  border: 1px solid rgba(122, 162, 255, 0.45);
  background: rgba(122, 162, 255, 0.12);
  color: #d2e0ff;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: var(--z-weight-bold);
}

.ds-display {
  font-size: var(--z-font-size-display);
  line-height: 1.08;
  margin: var(--z-space-5) 0 var(--z-space-4);
  max-width: 900px;
}

.ds-lead {
  color: var(--z-color-text-secondary);
  font-size: var(--z-font-size-20);
  line-height: 1.5;
  max-width: 900px;
  margin: 0;
}

.ds-chip-row,
.ds-button-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--z-space-3);
}

.ds-chip-row {
  margin-top: var(--z-space-6);
}

.ds-chip {
  border: 1px solid var(--z-color-border-default);
  border-radius: var(--z-radius-full);
  background: var(--z-color-surface-default);
  color: var(--z-color-text-secondary);
  padding: 7px 12px;
  font-size: var(--z-font-size-14);
}

.ds-button-row {
  margin-top: var(--z-space-6);
}

.ds-btn {
  text-decoration: none;
  border-radius: var(--z-radius-full);
  border: 1px solid transparent;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  font-weight: var(--z-weight-bold);
  font-size: var(--z-font-size-14);
}

.ds-btn-primary {
  background: var(--z-color-accent-primary);
  color: #081224;
}

.ds-btn-secondary {
  border-color: var(--z-color-border-default);
  background: var(--z-color-surface-default);
  color: var(--z-color-text-primary);
}

.ds-section {
  margin-bottom: var(--z-space-6);
}

.ds-surface {
  border: 1px solid var(--z-color-border-default);
  border-radius: var(--z-radius-lg);
  background: linear-gradient(180deg, var(--z-color-surface-strong), var(--z-color-surface-default));
  box-shadow: var(--z-shadow-soft);
  padding: var(--z-space-6);
}

h2 {
  margin: 0 0 var(--z-space-4);
  font-size: var(--z-font-size-32);
}

h3 {
  margin: 0 0 var(--z-space-3);
  font-size: var(--z-font-size-20);
}

p,
li {
  font-size: var(--z-font-size-16);
  line-height: var(--z-line-default);
}

.ds-muted {
  color: var(--z-color-text-secondary);
}

.ds-grid {
  display: grid;
  gap: var(--z-space-4);
}

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

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

.ds-mt-4 {
  margin-top: var(--z-space-4);
}

.ds-card {
  border: 1px solid var(--z-color-border-default);
  border-radius: var(--z-radius-md);
  background: var(--z-color-surface-default);
  padding: var(--z-space-5);
}

.ds-stat {
  margin: 0 0 var(--z-space-2);
  color: var(--z-color-accent-cyan);
  font-size: clamp(28px, 3.3vw, 36px);
}

.ds-kicker {
  margin: 0 0 var(--z-space-2);
  color: var(--z-color-accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-size: 12px;
  font-weight: var(--z-weight-bold);
}

.ds-price {
  font-size: 30px;
  margin: var(--z-space-3) 0;
  font-weight: var(--z-weight-bold);
}

.ds-price-sub {
  font-size: var(--z-font-size-14);
  color: var(--z-color-text-muted);
}

.ds-list {
  margin: 0;
  padding-left: 20px;
}

.ds-site-footer {
  margin-top: var(--z-space-8);
  border-top: 1px solid var(--z-color-border-default);
  padding: var(--z-space-5) 0;
  color: var(--z-color-text-muted);
  display: flex;
  justify-content: space-between;
  gap: var(--z-space-4);
}

@media (max-width: 980px) {
  .ds-sidebar {
    display: none;
  }

  .ds-main {
    margin-left: 0;
    padding: var(--z-space-6) var(--z-space-4);
  }

  .ds-grid-2,
  .ds-grid-3 {
    grid-template-columns: 1fr;
  }

  .ds-site-footer {
    flex-direction: column;
  }
}