/* ── Google Fonts: Inter (Cyrillic + Latin) ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ── Tokens ── */
:root {
  --dx-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --dx-brand: #053c7b;
  --dx-brand-light: #1061be;
  --dx-radius: .75rem;
  --dx-transition: .18s cubic-bezier(.4,0,.2,1);
  --dx-border: #e2e8f0;
  --dx-bg-subtle: #f8fafc;
}

[data-md-color-primary=delta] {
  --md-primary-fg-color: #053c7b;
  --md-primary-fg-color--light: #1061be;
  --md-primary-fg-color--dark: #00234a;
  --md-primary-bg-color: #fff;
  --md-primary-bg-color--light: #ffffffb3;
}

[data-md-color-accent=delta] {
  --md-accent-fg-color: #1061be;
  --md-accent-fg-color--transparent: #1061be1a;
  --md-accent-bg-color: #fff;
  --md-accent-bg-color--light: #ffffffb3;
}

body, .md-typeset {
  font-family: var(--dx-font);
  -webkit-font-smoothing: antialiased;
}

/* ═══════════════════════════════════════════
   HERO — clean, dark, single-tone
   ═══════════════════════════════════════════ */

.dx-hero {
  position: relative;
  overflow: hidden;
  padding: 5rem 1.5rem 4.5rem;
  background: var(--dx-brand);
  color: #fff;
}

.dx-hero__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 120%, rgba(255,255,255,.06) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 0%, rgba(255,255,255,.04) 0%, transparent 50%);
  pointer-events: none;
}

[data-md-color-scheme=slate] .dx-hero {
  background: #0d1117;
}

[data-md-color-scheme=slate] .dx-hero__mesh {
  background:
    radial-gradient(ellipse 80% 60% at 50% 120%, rgba(16,97,190,.15) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 0%, rgba(16,97,190,.08) 0%, transparent 50%);
}

.dx-hero__inner {
  max-width: 40rem;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.dx-hero__inner h1 {
  color: #fff;
  font-family: var(--dx-font);
  font-size: 2.75rem;
  font-weight: 800;
  margin: 0 0 .75rem;
  line-height: 1.1;
  letter-spacing: -.03em;
}

.dx-hero__inner > p {
  color: rgba(255, 255, 255, .6);
  font-size: 1.05rem;
  line-height: 1.6;
  margin: 0 auto 2.25rem;
  max-width: 30rem;
  font-weight: 400;
}

/* Search */
.dx-hero__search {
  position: relative;
  max-width: 32rem;
  margin: 0 auto;
}

.dx-hero__search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  display: flex;
}

.dx-hero__search-icon svg {
  fill: rgba(255,255,255,.35);
  width: 1.15rem;
  height: 1.15rem;
}

.dx-hero__search-input {
  width: 100%;
  padding: .85rem 4.5rem .85rem 2.85rem;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: .625rem;
  font-family: var(--dx-font);
  font-size: .9rem;
  background: rgba(255,255,255,.07);
  color: #fff;
  outline: none;
  box-sizing: border-box;
  transition: all var(--dx-transition);
}

.dx-hero__search-input::placeholder {
  color: rgba(255,255,255,.35);
}

.dx-hero__search-input:focus {
  border-color: rgba(255,255,255,.25);
  background: rgba(255,255,255,.1);
  box-shadow: 0 0 0 3px rgba(255,255,255,.06);
}

.dx-hero__search-kbd {
  position: absolute;
  right: .75rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--dx-font);
  font-size: .625rem;
  font-weight: 600;
  color: rgba(255,255,255,.3);
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: .3rem;
  padding: .2rem .4rem;
  pointer-events: none;
  line-height: 1;
}

/* ═══════════════════════════════════════════
   SECTIONS
   ═══════════════════════════════════════════ */

.dx-container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.dx-section {
  padding: 3.5rem 0;
}

.dx-section--alt {
  background: var(--dx-bg-subtle);
  border-top: 1px solid var(--dx-border);
}

[data-md-color-scheme=slate] .dx-section--alt {
  background: rgba(255,255,255,.02);
  border-top-color: rgba(255,255,255,.06);
}

.dx-section__title {
  font-family: var(--dx-font);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -.02em;
  margin: 0 0 1.5rem;
  color: var(--md-default-fg-color);
  border-bottom: none;
  padding-bottom: 0;
}

/* ═══════════════════════════════════════════
   GRID
   ═══════════════════════════════════════════ */

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

.dx-grid--3 { grid-template-columns: repeat(3, 1fr); }
.dx-grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ═══════════════════════════════════════════
   CARDS — uniform, single brand color
   ═══════════════════════════════════════════ */

.dx-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--md-default-bg-color, #fff);
  border: 1px solid var(--dx-border);
  border-radius: var(--dx-radius);
  text-decoration: none !important;
  color: inherit;
  transition: border-color var(--dx-transition), box-shadow var(--dx-transition);
  position: relative;
}

.dx-card:hover {
  border-color: #cbd5e1;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  color: inherit;
}

[data-md-color-scheme=slate] .dx-card {
  background: rgba(255,255,255,.025);
  border-color: rgba(255,255,255,.07);
}

[data-md-color-scheme=slate] .dx-card:hover {
  background: rgba(255,255,255,.04);
  border-color: rgba(255,255,255,.12);
  box-shadow: 0 2px 12px rgba(0,0,0,.2);
}

/* Icon */
.dx-card__icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: .5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eef2ff;
}

.dx-card__icon svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: var(--dx-brand-light);
}

[data-md-color-scheme=slate] .dx-card__icon {
  background: rgba(16,97,190,.1);
}

[data-md-color-scheme=slate] .dx-card__icon svg {
  fill: #60a5fa;
}

/* Body */
.dx-card__body {
  flex: 1;
  min-width: 0;
}

.dx-card h3 {
  font-family: var(--dx-font);
  font-size: .9rem;
  font-weight: 650;
  margin: 0 0 .25rem;
  color: var(--md-default-fg-color);
  letter-spacing: -.01em;
  line-height: 1.3;
}

.dx-card > .dx-card__body > p {
  font-size: .8rem;
  color: var(--md-default-fg-color--light);
  margin: 0;
  line-height: 1.55;
}

/* Arrow */
.dx-card__arrow {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  margin-top: .15rem;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--dx-transition), transform var(--dx-transition);
}

.dx-card__arrow svg {
  fill: var(--dx-brand-light);
}

[data-md-color-scheme=slate] .dx-card__arrow svg {
  fill: #60a5fa;
}

.dx-card:hover .dx-card__arrow {
  opacity: 1;
  transform: translateX(0);
}

/* Compact variant (client area) */
.dx-card--compact {
  padding: 1rem 1.125rem;
}

.dx-card--compact .dx-card__icon {
  width: 2.25rem;
  height: 2.25rem;
}

.dx-card--compact .dx-card__icon svg {
  width: 1.125rem;
  height: 1.125rem;
}

.dx-card--compact h3 {
  font-size: .85rem;
}

.dx-card--compact .dx-card__body > p {
  font-size: .78rem;
}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */

@media screen and (max-width: 64rem) {
  .dx-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .dx-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media screen and (max-width: 36rem) {
  .dx-hero {
    padding: 3.5rem 1rem 3rem;
  }

  .dx-hero__inner h1 {
    font-size: 2rem;
    letter-spacing: -.02em;
  }

  .dx-hero__inner > p {
    font-size: .92rem;
    margin-bottom: 1.75rem;
  }

  .dx-hero__search-input {
    font-size: .88rem;
    padding: .8rem 1rem .8rem 2.75rem;
  }

  .dx-hero__search-kbd { display: none; }

  .dx-section {
    padding: 2.5rem 0;
  }

  .dx-container {
    padding: 0 1rem;
  }

  .dx-section__title {
    font-size: 1.1rem;
  }

  .dx-grid--3 {
    grid-template-columns: 1fr;
    gap: .75rem;
  }

  .dx-grid--4 {
    grid-template-columns: 1fr;
    gap: .75rem;
  }

  .dx-card {
    padding: 1rem;
  }

  .dx-card__arrow {
    opacity: 1;
    transform: none;
  }
}

@media screen and (max-width: 24rem) {
  .dx-hero__inner h1 { font-size: 1.7rem; }
}

/* ═══════════════════════════════════════════
   TOUCH / ACCESSIBILITY
   ═══════════════════════════════════════════ */

@media (pointer: coarse) {
  .dx-card__arrow {
    opacity: 1;
    transform: none;
  }
  .dx-card:active {
    transform: scale(.99);
  }
}

.dx-card:focus-visible {
  outline: 2px solid var(--dx-brand-light);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .dx-card { transition: none; }
  .dx-card__arrow { transition: none; }
}

/* ═══════════════════════════════════════════
   NON-HOMEPAGE — keep grid card styles
   ═══════════════════════════════════════════ */

.md-typeset .grid.cards > ul > li {
  transition: transform var(--dx-transition), box-shadow var(--dx-transition), border-color var(--dx-transition);
  cursor: pointer;
  position: relative;
}

.md-typeset .grid.cards > ul > li > p:last-child a { position: static; }

.md-typeset .grid.cards > ul > li > p:last-child a::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

.md-typeset .grid.cards > ul > li:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,0,0,.08);
  border-color: var(--md-primary-fg-color--light);
}

[data-md-color-scheme=slate] .md-typeset .grid.cards > ul > li:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,.25);
}