/* ══════════════════════════════════════════════════════════════════════════════
   CzechAI Platform — Premium Dark Theme v3.0
   Clean, professional design inspired by Stripe/Vercel/Linear docs
   ══════════════════════════════════════════════════════════════════════════════ */

/* --- Design Tokens --- */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-tertiary: #18181f;
  --bg-elevated: #1e1e26;
  --bg-surface: rgba(255, 255, 255, 0.03);
  --bg-surface-hover: rgba(255, 255, 255, 0.06);

  --text-primary: #f0f0f3;
  --text-secondary: #a0a0b0;
  --text-muted: #606070;

  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-subtle: rgba(99, 102, 241, 0.12);
  --accent-border: rgba(99, 102, 241, 0.25);

  --border-default: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Base Layout --- */
body,
.md-main {
  background: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  font-family: var(--font-sans) !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.md-content {
  background: transparent !important;
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.5rem !important;
}

.md-main__inner {
  margin-top: 0 !important;
}

/* --- Header --- */
.md-header {
  background: rgba(10, 10, 15, 0.85) !important;
  backdrop-filter: blur(16px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(16px) saturate(180%) !important;
  border-bottom: 1px solid var(--border-default) !important;
  box-shadow: none !important;
}

.md-header__title {
  font-weight: 600 !important;
  letter-spacing: -0.01em !important;
}

.md-tabs {
  background: transparent !important;
  border-bottom: 1px solid var(--border-default);
}

.md-tabs__link {
  color: var(--text-secondary) !important;
  font-size: 0.82rem !important;
  font-weight: 500 !important;
  opacity: 0.8;
  transition: all var(--transition) !important;
}

.md-tabs__link:hover,
.md-tabs__link--active {
  color: var(--text-primary) !important;
  opacity: 1;
}

/* --- Sidebar --- */
.md-sidebar {
  background: var(--bg-primary) !important;
  border-right: 1px solid var(--border-default) !important;
}

.md-sidebar__scrollwrap {
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.08) transparent;
}

.md-nav__title {
  color: var(--text-muted) !important;
  font-size: 0.7rem !important;
  font-weight: 600 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.06em !important;
  padding: 0.4rem 0.75rem !important;
}

.md-nav__link {
  color: var(--text-secondary) !important;
  font-size: 0.82rem !important;
  font-weight: 400 !important;
  padding: 0.35rem 0.75rem !important;
  border-radius: var(--radius-sm) !important;
  transition: all var(--transition) !important;
  border-left: 2px solid transparent !important;
}

.md-nav__link:hover {
  color: var(--text-primary) !important;
  background: var(--bg-surface-hover) !important;
}

.md-nav__link--active,
.md-nav__item--active > .md-nav__link {
  color: var(--accent-hover) !important;
  background: var(--accent-subtle) !important;
  border-left: 2px solid var(--accent) !important;
  font-weight: 500 !important;
}

/* --- Typography --- */
.md-typeset {
  color: var(--text-primary) !important;
  font-size: 0.92rem !important;
  line-height: 1.7 !important;
}

.md-typeset h1 {
  color: var(--text-primary) !important;
  font-weight: 700 !important;
  font-size: 2rem !important;
  letter-spacing: -0.03em !important;
  margin: 0 0 0.5rem !important;
  border: none !important;
}

.md-typeset h2 {
  color: var(--text-primary) !important;
  font-weight: 650 !important;
  font-size: 1.45rem !important;
  letter-spacing: -0.02em !important;
  margin-top: 2.5rem !important;
  margin-bottom: 1rem !important;
  padding-bottom: 0.5rem !important;
  border-bottom: 1px solid var(--border-default) !important;
}

.md-typeset h2::after {
  display: none !important;
}

.md-typeset h3 {
  color: var(--text-primary) !important;
  font-weight: 600 !important;
  font-size: 1.15rem !important;
  letter-spacing: -0.01em !important;
  margin-top: 2rem !important;
}

.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  color: var(--text-secondary) !important;
  font-weight: 600 !important;
}

.md-typeset p {
  color: var(--text-secondary) !important;
  margin-bottom: 1rem !important;
}

.md-typeset a {
  color: var(--accent-hover) !important;
  text-decoration: none !important;
  transition: color var(--transition) !important;
}

.md-typeset a:hover {
  color: #a5b4fc !important;
  text-decoration: underline !important;
}

.md-typeset strong {
  color: var(--text-primary) !important;
  font-weight: 600 !important;
}

.md-typeset hr {
  border-color: var(--border-default) !important;
}

/* --- Lists --- */
.md-typeset ul,
.md-typeset ol {
  color: var(--text-secondary) !important;
}

.md-typeset li {
  margin-bottom: 0.25rem !important;
}

/* --- Code --- */
.md-typeset code {
  background: rgba(99, 102, 241, 0.1) !important;
  color: #c4b5fd !important;
  padding: 0.15rem 0.4rem !important;
  border-radius: var(--radius-sm) !important;
  font-family: var(--font-mono) !important;
  font-size: 0.85em !important;
  border: 1px solid rgba(99, 102, 241, 0.15);
}

.md-typeset pre {
  background: var(--bg-secondary) !important;
  border: 1px solid var(--border-default) !important;
  border-radius: var(--radius-md) !important;
  padding: 0 !important;
  margin: 1.25rem 0 !important;
  box-shadow: var(--shadow-sm) !important;
}

.md-typeset pre code {
  background: transparent !important;
  border: none !important;
  padding: 1rem 1.25rem !important;
  color: var(--text-secondary) !important;
  font-size: 0.82rem !important;
  line-height: 1.6 !important;
}

/* --- Tables --- */
.md-typeset table:not([class]) {
  background: var(--bg-secondary) !important;
  border: 1px solid var(--border-default) !important;
  border-radius: var(--radius-md) !important;
  overflow: hidden !important;
  width: 100% !important;
  border-collapse: separate !important;
  border-spacing: 0 !important;
  box-shadow: var(--shadow-sm) !important;
}

.md-typeset table th {
  background: var(--bg-tertiary) !important;
  color: var(--text-primary) !important;
  font-weight: 600 !important;
  font-size: 0.78rem !important;
  text-transform: uppercase !important;
  letter-spacing: 0.04em !important;
  padding: 0.75rem 1rem !important;
  border-bottom: 1px solid var(--border-default) !important;
}

.md-typeset table td {
  padding: 0.65rem 1rem !important;
  border-bottom: 1px solid var(--border-default) !important;
  color: var(--text-secondary) !important;
  font-size: 0.88rem !important;
}

.md-typeset table tr:last-child td {
  border-bottom: none !important;
}

.md-typeset table tr:hover td {
  background: var(--bg-surface-hover) !important;
}

/* --- Cards / Grid --- */
.md-typeset .grid.cards > ul {
  display: grid !important;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)) !important;
  gap: 1rem !important;
  list-style: none !important;
  padding: 0 !important;
  margin: 1.5rem 0 !important;
}

.md-typeset .grid.cards > ul > li {
  background: var(--bg-secondary) !important;
  border: 1px solid var(--border-default) !important;
  border-radius: var(--radius-lg) !important;
  padding: 1.25rem 1.5rem !important;
  transition: all var(--transition) !important;
}

.md-typeset .grid.cards > ul > li:hover {
  border-color: var(--accent-border) !important;
  box-shadow: 0 0 0 1px var(--accent-border), var(--shadow-md) !important;
  transform: translateY(-2px) !important;
}

/* --- Admonitions --- */
.md-typeset .admonition,
.md-typeset details {
  background: var(--bg-secondary) !important;
  border: 1px solid var(--border-default) !important;
  border-left: 3px solid var(--accent) !important;
  border-radius: var(--radius-md) !important;
  box-shadow: none !important;
  overflow: hidden !important;
  margin: 1.25rem 0 !important;
}

.md-typeset .admonition-title,
.md-typeset summary {
  background: var(--bg-tertiary) !important;
  border-bottom: 1px solid var(--border-default) !important;
  font-weight: 600 !important;
  padding: 0.6rem 1rem !important;
}

.md-typeset .admonition.note {
  border-left-color: #3b82f6 !important;
}

.md-typeset .admonition.tip,
.md-typeset .admonition.success {
  border-left-color: #22c55e !important;
}

.md-typeset .admonition.warning {
  border-left-color: #eab308 !important;
}

.md-typeset .admonition.danger,
.md-typeset .admonition.error {
  border-left-color: #ef4444 !important;
}

.md-typeset .admonition.info {
  border-left-color: #06b6d4 !important;
}

/* --- Search --- */
.md-search__form {
  background: var(--bg-secondary) !important;
  border: 1px solid var(--border-default) !important;
  border-radius: var(--radius-md) !important;
}

.md-search__input {
  color: var(--text-primary) !important;
  font-size: 0.88rem !important;
}

.md-search__input::placeholder {
  color: var(--text-muted) !important;
}

.md-search-result__meta {
  color: var(--text-muted) !important;
  background: var(--bg-tertiary) !important;
}

.md-search-result__item {
  border-bottom-color: var(--border-default) !important;
}

/* --- Hero Section --- */
.hero-section {
  text-align: center;
  padding: 3.5rem 2rem;
  background: linear-gradient(180deg, var(--accent-subtle), transparent);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  margin-bottom: 2.5rem;
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.6;
}

/* --- Service Cards --- */
.service-card {
  background: var(--bg-secondary) !important;
  border: 1px solid var(--border-default) !important;
  border-radius: var(--radius-lg) !important;
  padding: 1.5rem !important;
  margin: 0.75rem 0 !important;
  transition: all var(--transition) !important;
}

.service-card:hover {
  border-color: var(--accent-border) !important;
  box-shadow: 0 0 0 1px var(--accent-border), var(--shadow-md) !important;
}

.service-title {
  color: var(--text-primary) !important;
  font-weight: 650 !important;
  font-size: 1.2rem !important;
  letter-spacing: -0.01em !important;
  margin: 0.25rem 0 !important;
  display: flex !important;
  align-items: center !important;
  gap: 0.5rem !important;
}

.service-desc {
  color: var(--text-secondary) !important;
  font-size: 0.9rem !important;
  line-height: 1.6 !important;
  margin: 0.5rem 0 !important;
}

.service-stats {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 0.5rem !important;
  margin-top: 0.75rem !important;
  padding-top: 0.75rem !important;
  border-top: 1px solid var(--border-default) !important;
}

.service-stat {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.35rem !important;
  padding: 0.25rem 0.6rem !important;
  background: var(--accent-subtle) !important;
  border-radius: var(--radius-sm) !important;
  font-size: 0.78rem !important;
  color: var(--text-secondary) !important;
}

.service-link {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.35rem !important;
  margin-top: 0.75rem !important;
  padding: 0.35rem 0.75rem !important;
  background: var(--accent-subtle) !important;
  border: 1px solid var(--accent-border) !important;
  border-radius: var(--radius-sm) !important;
  color: var(--accent-hover) !important;
  font-weight: 500 !important;
  font-size: 0.85rem !important;
  text-decoration: none !important;
  transition: all var(--transition) !important;
}

.service-link:hover {
  background: rgba(99, 102, 241, 0.2) !important;
  color: #c4b5fd !important;
}

/* --- Service Numbering --- */
.service-num {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  min-width: 2.5rem !important;
  height: 2.5rem !important;
  font-weight: 700 !important;
  font-size: 1.1rem !important;
  border-radius: var(--radius-md) !important;
  margin-right: 0.75rem !important;
  color: white !important;
}

.service-num-01 { background: var(--accent) !important; }
.service-num-02 { background: #22c55e !important; }
.service-num-03 { background: #f59e0b !important; }
.service-num-04 { background: #3b82f6 !important; }
.service-num-05 { background: #ec4899 !important; }
.service-num-06 { background: #8b5cf6 !important; }
.service-num-07 { background: #14b8a6 !important; }
.service-num-08 { background: #eab308 !important; }
.service-num-09 { background: #06b6d4 !important; }
.service-num-10 { background: #ef4444 !important; }
.service-num-aml { background: #dc2626 !important; }

/* Service card border colors */
.service-card-01 { border-left: 3px solid var(--accent) !important; }
.service-card-02 { border-left: 3px solid #22c55e !important; }
.service-card-03 { border-left: 3px solid #f59e0b !important; }
.service-card-04 { border-left: 3px solid #3b82f6 !important; }
.service-card-05 { border-left: 3px solid #ec4899 !important; }
.service-card-06 { border-left: 3px solid #8b5cf6 !important; }
.service-card-07 { border-left: 3px solid #14b8a6 !important; }
.service-card-08 { border-left: 3px solid #eab308 !important; }
.service-card-09 { border-left: 3px solid #06b6d4 !important; }
.service-card-10 { border-left: 3px solid #ef4444 !important; }
.service-card-aml { border-left: 3px solid #dc2626 !important; }

/* --- Status Badges --- */
.status-online {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.status-warning {
  background: rgba(234, 179, 8, 0.15);
  color: #fbbf24;
  border-color: rgba(234, 179, 8, 0.25);
}

.status-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.25);
}

/* --- Stat Blocks --- */
.stat-block {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0;
}

.stat-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  transition: border-color var(--transition);
}

.stat-item:hover {
  border-color: var(--accent-border);
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.35rem;
}

/* --- Gradient Text (minimal accent use) --- */
.gradient-text {
  color: var(--accent-hover) !important;
}

.gradient-text-success {
  color: #4ade80 !important;
}

.gradient-text-warning {
  color: #fbbf24 !important;
}

.gradient-text-danger {
  color: #f87171 !important;
}

/* --- Footer --- */
.md-footer {
  background: var(--bg-secondary) !important;
  border-top: 1px solid var(--border-default) !important;
}

.md-footer-meta {
  background: transparent !important;
}

.md-footer-meta__inner {
  color: var(--text-muted) !important;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.18);
}

/* --- Content animations (subtle) --- */
.md-content__inner {
  animation: fadeUp 0.3s ease-out;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .md-content {
    padding: 1rem !important;
  }

  .hero-title {
    font-size: 2rem;
  }

  .md-typeset .grid.cards > ul {
    grid-template-columns: 1fr !important;
  }

  .stat-block {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .stat-block {
    grid-template-columns: 1fr;
  }
}