@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

/* ============================================================================
   DEEP SPACE PALETTE & COLOR VARIABLES
   ============================================================================ */

:root {
  /* Primary: Deep Navy */
  --md-primary-fg-color: #0A1428;
  --md-primary-fg-color--light: #1a2540;
  --md-primary-fg-color--dark: #05090f;

  /* Background & Content — DARK AS DEFAULT */
  --md-primary-bg-color: #050912;
  --md-default-bg-color: #050912;
  --md-default-fg-color: #e6ecf5;

  /* Accent: Gold/Orange */
  --md-accent-fg-color: #FF9D3D;
  --md-accent-fg-color--transparent: rgba(255, 157, 61, 0.12);

  /* Code blocks dark */
  --md-code-bg-color: #0f1729;
  --md-code-fg-color: #e6ecf5;

  /* Extended palette */
  --tcs-steel: #6b7280;
  --tcs-nebula: #7c3aed;
  --tcs-starfield-gold: #ffb84d;
  --tcs-success: #10b981;
  --tcs-planned: #6b7280;

  /* Typography */
  --md-typescale-xxl: 3.5rem / 1.2;
  --md-typescale-xl: 2.5rem / 1.3;
  --md-typescale-lg: 1.5rem / 1.4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --md-hue: 220;
    --md-default-bg-color: #050912;
    --md-default-fg-color: #e6ecf5;
    --md-default-fg-color--light: #b8c5d6;
    --md-primary-fg-color: #0A1428;
    --md-primary-fg-color--light: #1a2540;
    --md-primary-bg-color: #050912;
    --md-accent-fg-color: #ffb84d;
    --md-code-bg-color: #0f1729;
    --md-code-fg-color: #e6ecf5;
  }
}

/* ============================================================================
   TYPOGRAPHY
   ============================================================================ */

html {
  font-family: Inter, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, sans-serif;
  font-size: 16px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  color: var(--md-default-fg-color);
  background-color: var(--md-default-bg-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: Poppins, Inter, sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

h1 {
  font-weight: 800;
  font-size: 3.25rem;
}

h2 {
  font-size: 2.25rem;
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.75rem;
  margin-top: 1.25rem;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.4rem;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

code, pre {
  font-family: JetBrains Mono, monospace;
  font-size: 0.875rem;
  font-weight: 400;
}

/* Body text scaling for better readability */
.md-typeset {
  font-size: 1.05rem;
  line-height: 1.75;
}

.md-typeset p {
  margin-bottom: 1.25rem;
}

.md-typeset li {
  margin-bottom: 0.5rem;
}

.md-typeset table {
  font-size: 0.95rem;
}

.md-typeset td, .md-typeset th {
  padding: 1rem;
}

/* ============================================================================
   HERO SECTION (.tcs-hero)
   ============================================================================ */

.tcs-hero {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 460px;
  padding: 5rem 2rem;
  margin: 0 0 3rem 0;
  border-radius: 12px;
  color: #f0f4ff;
  text-align: center;

  /* Layered space background */
  background:
    radial-gradient(circle at 20% 40%, rgba(255, 157, 61, 0.15) 0%, transparent 55%),
    radial-gradient(circle at 80% 60%, rgba(124, 58, 237, 0.20) 0%, transparent 60%),
    linear-gradient(135deg, #05090f 0%, #0A1428 50%, #1a2540 100%);
  background-size:
    100% 100%,
    100% 100%,
    150% 150%;
  background-position: 0 0, 0 0, 0 0;
}

@media (prefers-color-scheme: dark) {
  .tcs-hero {
    background:
      radial-gradient(circle at 20% 40%, rgba(255, 157, 61, 0.12) 0%, transparent 55%),
      radial-gradient(circle at 80% 60%, rgba(124, 58, 237, 0.15) 0%, transparent 60%),
      linear-gradient(135deg, #050912 0%, #0a1428 50%, #1a2540 100%);
    background-size:
      100% 100%,
      100% 100%,
      150% 150%;
  }
}

/* Starfield SVG background */
.tcs-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.7;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 800 400'%3E%3Cdefs%3E%3ClinearGradient id='starGlow' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' stop-color='%23ffffff' stop-opacity='0.8'/%3E%3Cstop offset='100%25' stop-color='%23ffb84d' stop-opacity='0.3'/%3E%3C/linearGradient%3E%3C/defs%3E%3C!-- Orbital ellipse 1 --%3E%3Cellipse cx='400' cy='200' rx='220' ry='140' fill='none' stroke='%23ffb84d' stroke-width='1' opacity='0.2' stroke-dasharray='10,5'/%3E%3C!-- Orbital ellipse 2 --%3E%3Cellipse cx='400' cy='200' rx='280' ry='180' fill='none' stroke='%237c3aed' stroke-width='1' opacity='0.15' stroke-dasharray='8,6' transform='rotate(45 400 200)'/%3E%3C!-- Orbital ellipse 3 --%3E%3Cellipse cx='400' cy='200' rx='160' ry='100' fill='none' stroke='%236b7280' stroke-width='1' opacity='0.12' stroke-dasharray='12,4' transform='rotate(-30 400 200)'/%3E%3C!-- Stars --%3E%3Ccircle cx='50' cy='30' r='1.2' fill='%23ffffff' opacity='0.9'/%3E%3Ccircle cx='120' cy='80' r='0.8' fill='%23ffffff' opacity='0.6'/%3E%3Ccircle cx='200' cy='40' r='1' fill='%23ffffff' opacity='0.8'/%3E%3Ccircle cx='280' cy='120' r='0.6' fill='%23ffffff' opacity='0.5'/%3E%3Ccircle cx='350' cy='60' r='1.1' fill='%23ffb84d' opacity='0.7'/%3E%3Ccircle cx='420' cy='30' r='0.9' fill='%23ffffff' opacity='0.7'/%3E%3Ccircle cx='500' cy='90' r='1' fill='%23ffffff' opacity='0.8'/%3E%3Ccircle cx='580' cy='50' r='0.7' fill='%23ffffff' opacity='0.5'/%3E%3Ccircle cx='680' cy='100' r='1.2' fill='%23ffffff' opacity='0.9'/%3E%3Ccircle cx='750' cy='40' r='0.8' fill='%23ffffff' opacity='0.6'/%3E%3Ccircle cx='80' cy='180' r='1' fill='%23ffffff' opacity='0.8'/%3E%3Ccircle cx='150' cy='220' r='0.6' fill='%23ffffff' opacity='0.5'/%3E%3Ccircle cx='280' cy='200' r='1.1' fill='%23ffffff' opacity='0.7'/%3E%3Ccircle cx='380' cy='250' r='0.9' fill='%23ffffff' opacity='0.7'/%3E%3Ccircle cx='480' cy='210' r='1' fill='%23ffffff' opacity='0.8'/%3E%3Ccircle cx='600' cy='240' r='0.7' fill='%23ffffff' opacity='0.5'/%3E%3Ccircle cx='720' cy='190' r='1.2' fill='%23ffffff' opacity='0.9'/%3E%3Ccircle cx='110' cy='320' r='0.8' fill='%23ffffff' opacity='0.6'/%3E%3Ccircle cx='200' cy='360' r='1' fill='%23ffffff' opacity='0.8'/%3E%3Ccircle cx='340' cy='300' r='0.6' fill='%23ffffff' opacity='0.5'/%3E%3Ccircle cx='420' cy='350' r='1.1' fill='%23ffb84d' opacity='0.7'/%3E%3Ccircle cx='540' cy='330' r='0.9' fill='%23ffffff' opacity='0.7'/%3E%3Ccircle cx='660' cy='370' r='1' fill='%23ffffff' opacity='0.8'/%3E%3Ccircle cx='750' cy='310' r='0.7' fill='%23ffffff' opacity='0.5'/%3E%3Ccircle cx='60' cy='280' r='1.2' fill='%23ffffff' opacity='0.9'/%3E%3Ccircle cx='300' cy='380' r='0.8' fill='%23ffffff' opacity='0.6'/%3E%3Ccircle cx='500' cy='370' r='1' fill='%23ffffff' opacity='0.8'/%3E%3Ccircle cx='700' cy='280' r='0.6' fill='%23ffffff' opacity='0.5'/%3E%3Ccircle cx='160' cy='150' r='1.1' fill='%23ffffff' opacity='0.7'/%3E%3Ccircle cx='450' cy='140' r='0.9' fill='%23ffffff' opacity='0.7'/%3E%3Ccircle cx='250' cy='270' r='1' fill='%23ffffff' opacity='0.8'/%3E%3Ccircle cx='620' cy='120' r='0.7' fill='%23ffffff' opacity='0.5'/%3E%3C/svg%3E");
  background-size: cover;
  background-position: center;
}

/* Animated gradient pulse overlay — enhanced visibility */
.tcs-hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 157, 61, 0.15) 0%, transparent 70%);
  background-size: 200% 200%;
  background-position: 0% 0%;
  animation: pulse-gradient 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes pulse-gradient {
  0% {
    background-position: 0% 0%;
    opacity: 0.6;
  }
  50% {
    background-position: 100% 100%;
    opacity: 1;
  }
  100% {
    background-position: 0% 0%;
    opacity: 0.6;
  }
}

/* Hero content positioning */
.tcs-hero > * {
  position: relative;
  z-index: 2;
}

.tcs-hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin: 0 0 1rem 0;
  color: #ffffff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.tcs-hero-tagline {
  font-size: 1.5rem;
  opacity: 0.9;
  margin: 0 0 2.5rem 0;
  font-weight: 400;
  line-height: 1.6;
}

/* Responsive hero */
@media (max-width: 600px) {
  .tcs-hero {
    min-height: 340px;
    padding: 3rem 1.5rem;
    margin: 0 0 2rem 0;
  }

  .tcs-hero h1 {
    font-size: 2.25rem;
  }

  .tcs-hero-tagline {
    font-size: 1.125rem;
    margin: 0 0 1.75rem 0;
  }
}

/* ============================================================================
   CTA BUTTONS (.tcs-cta-group, .tcs-cta)
   ============================================================================ */

.tcs-cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.tcs-cta {
  display: inline-block;
  padding: 0.85rem 2rem;
  background-color: var(--md-accent-fg-color);
  color: var(--md-primary-fg-color);
  border: none;
  border-radius: 8px;
  font-family: Inter, sans-serif;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 14px rgba(255, 157, 61, 0.3);
  white-space: nowrap;
}

.tcs-cta:hover,
.tcs-cta:focus {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(255, 157, 61, 0.5);
  background-color: var(--tcs-starfield-gold);
  outline: none;
}

.tcs-cta:active {
  transform: translateY(-1px);
}

.tcs-cta.secondary {
  background-color: transparent;
  border: 2px solid rgba(255, 255, 255, 0.4);
  color: #f0f4ff;
  box-shadow: none;
}

.tcs-cta.secondary:hover,
.tcs-cta.secondary:focus {
  border-color: var(--md-accent-fg-color);
  background-color: rgba(255, 157, 61, 0.1);
  box-shadow: 0 4px 14px rgba(255, 157, 61, 0.2);
}

@media (prefers-color-scheme: dark) {
  .tcs-cta.secondary {
    border-color: rgba(255, 255, 255, 0.3);
  }

  .tcs-cta.secondary:hover {
    border-color: var(--md-accent-fg-color);
    background-color: rgba(255, 157, 61, 0.12);
  }
}

/* ============================================================================
   STATS CARDS (.tcs-stats, .tcs-stat)
   ============================================================================ */

.tcs-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.tcs-stat {
  text-align: center;
  padding: 1.5rem;
  background-color: rgba(10, 20, 40, 0.04);
  border: 1px solid rgba(107, 114, 128, 0.15);
  border-radius: 10px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tcs-stat:hover {
  background-color: rgba(10, 20, 40, 0.08);
  border-color: var(--md-accent-fg-color);
  transform: translateY(-3px);
}

@media (prefers-color-scheme: dark) {
  .tcs-stat {
    background-color: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.08);
  }

  .tcs-stat:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--md-accent-fg-color);
  }
}

.tcs-stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--md-accent-fg-color);
  font-family: Poppins, Inter, sans-serif;
  line-height: 1;
  margin: 0;
}

.tcs-stat-label {
  font-size: 0.9rem;
  color: var(--tcs-steel);
  margin-top: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

@media (prefers-color-scheme: dark) {
  .tcs-stat-label {
    color: var(--md-default-fg-color--light);
  }
}

/* ============================================================================
   STATUS BADGES (.tcs-status)
   ============================================================================ */

.tcs-status {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 3px;
  font-family: JetBrains Mono, monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #ffffff;
  margin: 0 0.25rem;
}

.tcs-status.live {
  background-color: #10b981;
}

.tcs-status.planned {
  background-color: #6b7280;
}

.tcs-status.experimental {
  background-color: var(--md-accent-fg-color);
  color: var(--md-primary-fg-color);
}

/* ============================================================================
   CARD GRID ENHANCEMENTS
   ============================================================================ */

.grid.cards .card {
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.grid.cards .card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(10, 20, 40, 0.15);
  border-color: var(--md-accent-fg-color);
}

@media (prefers-color-scheme: dark) {
  .grid.cards .card:hover {
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
  }
}

/* ============================================================================
   SCROLL REVEAL (.tcs-reveal)
   ============================================================================ */

.tcs-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.tcs-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================================
   PAGE TRANSITION
   ============================================================================ */

body.tcs-transitioning main {
  opacity: 0.3;
  transition: opacity 0.2s ease;
}

/* ============================================================================
   ACCESSIBILITY
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
  .tcs-hero::after {
    animation: none;
  }

  .tcs-reveal,
  .tcs-cta,
  .tcs-stat,
  .grid.cards .card {
    transition: none;
  }

  .tcs-reveal {
    opacity: 1;
    transform: none;
  }

  .tcs-reveal.visible {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================================
   SECTION HEADERS & CONTENT SPACING
   ============================================================================ */

main > section {
  margin-bottom: 3rem;
}

main > section:first-of-type {
  margin-top: 0;
}

/* ============================================================================
   ADMONITIONS & CALLOUTS
   ============================================================================ */

.admonition {
  border-radius: 8px;
  transition: all 0.3s ease;
}

.admonition:hover {
  box-shadow: 0 4px 12px rgba(10, 20, 40, 0.1);
}

@media (prefers-color-scheme: dark) {
  .admonition:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  }
}

/* ============================================================================
   CODE BLOCKS
   ============================================================================ */

pre {
  background-color: var(--md-code-bg-color) !important;
  border-radius: 8px;
  padding: 1rem !important;
  overflow-x: auto;
  border: 1px solid rgba(107, 114, 128, 0.15);
}

@media (prefers-color-scheme: dark) {
  pre {
    border-color: rgba(255, 255, 255, 0.08);
  }
}

/* ============================================================================
   TABLES
   ============================================================================ */

table {
  border-radius: 8px;
  overflow: hidden;
}

th {
  background-color: rgba(10, 20, 40, 0.05);
  color: var(--md-primary-fg-color);
  font-weight: 600;
}

@media (prefers-color-scheme: dark) {
  th {
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--md-default-fg-color);
  }
}

td {
  border-color: rgba(107, 114, 128, 0.2);
}

@media (prefers-color-scheme: dark) {
  td {
    border-color: rgba(255, 255, 255, 0.1);
  }
}

/* ============================================================================
   MERMAID DIAGRAMS (LARGER & ZOOMABLE)
   ============================================================================ */

.md-typeset .mermaid,
.md-typeset div.mermaid,
.md-typeset pre.mermaid {
  min-height: 500px;
  max-width: 100%;
  margin: 3rem auto;
  padding: 2rem;
  background: rgba(10, 20, 40, 0.4);
  border-radius: 12px;
  border: 2px solid rgba(255, 157, 61, 0.25);
  cursor: zoom-in;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.md-typeset .mermaid svg,
.md-typeset div.mermaid svg,
.md-typeset pre.mermaid svg {
  max-width: 100%;
  height: auto;
  min-height: 450px;
}

.md-typeset .mermaid:hover,
.md-typeset div.mermaid:hover,
.md-typeset pre.mermaid:hover {
  box-shadow: 0 12px 48px rgba(255, 157, 61, 0.25);
  border-color: rgba(255, 157, 61, 0.5);
  background: rgba(10, 20, 40, 0.6);
}

@media (prefers-color-scheme: light) {
  .md-typeset .mermaid,
  .md-typeset div.mermaid,
  .md-typeset pre.mermaid {
    background: rgba(15, 23, 41, 0.08);
    border-color: rgba(255, 157, 61, 0.3);
  }

  .md-typeset .mermaid:hover,
  .md-typeset div.mermaid:hover,
  .md-typeset pre.mermaid:hover {
    background: rgba(15, 23, 41, 0.12);
  }
}

/* ============================================================================
   LINKS
   ============================================================================ */

a {
  color: var(--md-accent-fg-color);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  text-decoration: underline;
  opacity: 0.8;
}

a:focus {
  outline: 2px solid var(--md-accent-fg-color);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ============================================================================
   RESPONSIVE UTILITIES
   ============================================================================ */

@media (max-width: 960px) {
  .tcs-stats {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
  }

  .tcs-stat {
    padding: 1rem;
  }

  .tcs-stat-number {
    font-size: 2rem;
  }

  .tcs-cta-group {
    gap: 0.75rem;
  }

  .tcs-cta {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 600px) {
  .tcs-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .tcs-cta-group {
    flex-direction: column;
    gap: 0.75rem;
  }

  .tcs-cta {
    width: 100%;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }
}