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

:root {
  --navarena-primary: #2563EB;
  --navarena-primary-strong: #1D4ED8;
  --navarena-accent: #0D9488;
  --navarena-bg-subtle: #f4f7fb;
  --navarena-surface: #ffffff;
  --navarena-surface-soft: rgba(255, 255, 255, 0.84);
  --navarena-border: rgba(23, 37, 84, 0.06);
  --navarena-border-strong: rgba(23, 37, 84, 0.12);
  --navarena-shadow-sm: 0 10px 30px rgba(15, 23, 42, 0.04);
  --navarena-shadow-md: 0 18px 40px rgba(15, 23, 42, 0.08);
  --navarena-radius-lg: 24px;
  --navarena-radius-md: 18px;
  --navarena-radius-sm: 12px;
  --navarena-content-width: 82rem;
  --md-sidebar-width: 14rem !important;
}

[data-md-color-scheme="slate"] {
  --navarena-primary: #60A5FA;
  --navarena-primary-strong: #3B82F6;
  --navarena-accent: #2DD4BF;
  --navarena-bg-subtle: #0d1727;
  --navarena-surface: #121d2d;
  --navarena-surface-soft: rgba(18, 29, 45, 0.9);
  --navarena-border: rgba(148, 163, 184, 0.12);
  --navarena-border-strong: rgba(191, 219, 254, 0.18);
  --navarena-shadow-sm: 0 16px 32px rgba(2, 6, 23, 0.2);
  --navarena-shadow-md: 0 24px 48px rgba(2, 6, 23, 0.3);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.md-grid {
  max-width: var(--navarena-content-width);
}

.md-main {
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.03), transparent 28%),
    radial-gradient(circle at top right, rgba(13, 148, 136, 0.02), transparent 22%);
}

[data-md-color-scheme="slate"] .md-main {
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.04), transparent 24%),
    radial-gradient(circle at top right, rgba(45, 212, 191, 0.03), transparent 18%);
}

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

.md-content__inner {
  padding-right: 3rem;
}

.md-typeset {
  font-size: 0.8rem;
  line-height: 1.78;
  letter-spacing: 0.01em;
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  font-weight: 650;
  letter-spacing: -0.02em;
}

.md-typeset h1 {
  margin-bottom: 1rem;
}

.md-typeset h2 {
  margin-top: 2.6rem;
  margin-bottom: 1rem;
}

.md-typeset p,
.md-typeset li {
  color: var(--md-default-fg-color--light);
}

.md-typeset p {
  margin: 0 0 1em;
}

/* hide announce slot — outer .md-banner still reserves height in Material 9.x */
[data-md-component="announce"],
.md-banner {
  display: none !important;
}

.md-header {
  background: var(--navarena-surface-soft);
  border-bottom: none;
  box-shadow: none;
  backdrop-filter: blur(18px);
  color: var(--md-default-fg-color);
}

.md-header__button,
.md-header__title,
.md-header__topic,
.md-header .md-logo,
.md-header .md-icon {
  color: var(--md-default-fg-color);
}

.md-nav__link,
.md-typeset a {
  transition: color 0.2s ease, opacity 0.2s ease, background-color 0.2s ease;
}

.md-nav__link--active,
.md-typeset a:hover {
  color: var(--navarena-primary) !important;
}

.md-search__form,
.md-search__input {
  border-radius: 999px;
}

.md-search__input {
  border: 1px solid transparent;
  background: var(--navarena-surface);
  box-shadow: inset 0 0 0 1px var(--navarena-border);
  color: var(--md-default-fg-color);
}

.md-search__input::placeholder {
  color: var(--md-default-fg-color--lighter);
}

.md-search__icon {
  color: var(--md-default-fg-color--light);
}

.md-typeset .md-button {
  border-radius: 999px;
  padding: 0.68rem 1.25rem;
  font-weight: 600;
}

.md-typeset .md-button--primary {
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.18);
}

/* ── Hero ── */

.hero {
  position: relative;
  margin: 0 0 2.5rem;
  overflow: hidden;
  border: 1px solid var(--navarena-border);
  border-radius: var(--navarena-radius-lg);
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.07), rgba(13, 148, 136, 0.05)),
    var(--navarena-surface);
  box-shadow: var(--navarena-shadow-sm);
  min-height: 260px;
}

[data-md-color-scheme="slate"] .hero {
  background:
    linear-gradient(135deg, rgba(96, 165, 250, 0.08), rgba(45, 212, 191, 0.05)),
    var(--navarena-surface);
}

/* dot-grid texture layer */
.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--navarena-border-strong) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  opacity: 0.5;
}

/* SVG floating shapes layer */
.hero-floating-shapes,
.hero-nav-path {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* floating hexagons / circles — use theme primary color */
.float-shape {
  stroke: var(--navarena-primary);
  animation: hero-float 8s ease-in-out infinite;
}

.float-shape.shape-1 { animation-delay: 0s;   opacity: 0.18; }
.float-shape.shape-2 { animation-delay: 1.5s; opacity: 0.12; }
.float-shape.shape-3 { animation-delay: 3s;   opacity: 0.08; }
.float-shape.shape-4 { animation-delay: 0.8s; opacity: 0.10; }
.float-shape.shape-5 { animation-delay: 2.2s; opacity: 0.14; }

@keyframes hero-float {
  0%, 100% { transform: translateY(0);   }
  50%       { transform: translateY(-7px); }
}

/* navigation path drawing animation */
.draw-path {
  stroke: var(--navarena-accent);
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: hero-draw 3.5s ease forwards 0.4s;
  opacity: 0.45;
}

@keyframes hero-draw {
  to { stroke-dashoffset: 0; }
}

/* dot endpoints on nav path */
.hero-nav-path circle {
  fill: var(--navarena-accent);
  opacity: 0.55;
}

/* content layer */
.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.9rem;
  padding: 3.25rem 2.5rem 3rem;
}

.hero-content h1 {
  margin: 0.2rem 0 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--md-default-fg-color);
}

.hero-content > p:first-of-type {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--md-default-fg-color--light);
}

.hero-subtitle {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--navarena-accent);
}

.hero-logo {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 0.4rem;
}

.section-intro {
  max-width: 44rem;
  margin-bottom: 1.25rem;
}

.section-intro h2,
.section-intro p {
  margin: 0;
}

.section-intro p {
  margin-top: 0.55rem;
}

.feature-grid,
.persona-grid,
.section-grid {
  display: grid;
  gap: 1.25rem;
  margin: 1.5rem 0 2.5rem;
}

.feature-grid,
.section-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.persona-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.feature-card,
.persona-card,
.section-card {
  display: grid;
  gap: 0.8rem;
  min-height: 100%;
  padding: 1.35rem;
  border: 1px solid var(--navarena-border);
  border-radius: var(--navarena-radius-md);
  background: var(--navarena-surface);
  box-shadow: var(--navarena-shadow-sm);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.feature-card:hover,
.persona-card:hover,
.section-card:hover {
  transform: translateY(-2px);
  border-color: var(--navarena-border-strong);
  box-shadow: var(--navarena-shadow-md);
}

.feature-card-label {
  display: inline-flex;
  width: fit-content;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--navarena-primary);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.feature-card h3,
.persona-card h3,
.section-card h3 {
  margin: 0;
  font-size: 1.02rem;
}

.feature-card p,
.persona-card p,
.section-card p {
  margin: 0;
}

.feature-card ul,
.link-list {
  margin: 0;
  padding-left: 1.1rem;
}

.feature-card li,
.link-list li {
  margin-bottom: 0.35rem;
}

.feature-card-footer,
.section-card-footer {
  margin-top: auto;
  font-weight: 600;
}

.highlight,
.md-typeset pre > code,
.md-typeset table:not([class]) {
  border-radius: var(--navarena-radius-sm);
}

.highlight,
.md-typeset table:not([class]) {
  box-shadow: var(--navarena-shadow-sm);
}

.highlight {
  overflow: hidden;
  border: 1px solid var(--navarena-border);
}

.highlight pre {
  padding: 1rem 1.15rem;
}

code {
  padding: 0.18em 0.42em;
  border-radius: 0.5rem;
  background: rgba(37, 99, 235, 0.08);
}

[data-md-color-scheme="slate"] code {
  background: rgba(96, 165, 250, 0.12);
}

.admonition,
details {
  border-radius: var(--navarena-radius-sm);
  border-left: 3px solid var(--navarena-primary);
  box-shadow: var(--navarena-shadow-sm);
}

.md-typeset table:not([class]) {
  border: 1px solid var(--navarena-border);
  overflow: hidden;
}

.md-typeset table:not([class]) th {
  background: rgba(37, 99, 235, 0.08);
  font-weight: 650;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) th {
  background: rgba(96, 165, 250, 0.12);
}

/* ── Mermaid diagram container ── */

.md-typeset .mermaid {
  padding: 1.5rem 1rem;
  border: 1px solid var(--navarena-border);
  border-radius: var(--navarena-radius-sm);
  background: var(--navarena-surface);
  box-shadow: var(--navarena-shadow-sm);
  overflow-x: auto;
}

/* Centre the rendered SVG */
.md-typeset .mermaid svg {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
}

/* ── Flowchart: regular nodes ── */

.md-typeset .mermaid .node rect,
.md-typeset .mermaid .node polygon,
.md-typeset .mermaid .node circle,
.md-typeset .mermaid .node ellipse {
  rx: 8;
  ry: 8;
  filter: drop-shadow(0 2px 4px rgba(15, 23, 42, 0.06));
  stroke-width: 1.5px !important;
}

.md-typeset .mermaid .node .label {
  font-family: 'Inter', sans-serif !important;
  font-size: 13px !important;
  font-weight: 500 !important;
}

/* ── Flowchart: subgraph clusters ── */

.md-typeset .mermaid .cluster rect {
  rx: 10 !important;
  ry: 10 !important;
  stroke-width: 1.5px !important;
  stroke-dasharray: 5 3 !important;
}

.md-typeset .mermaid .cluster-label .nodeLabel,
.md-typeset .mermaid .cluster-label foreignObject p {
  font-family: 'Inter', sans-serif !important;
  font-size: 12px !important;
  font-weight: 700 !important;
  letter-spacing: 0.04em !important;
  text-transform: uppercase !important;
}

/* ── Flowchart: edges ── */

.md-typeset .mermaid .edgePath .path {
  stroke-width: 1.75px !important;
}

.md-typeset .mermaid .edgeLabel {
  font-family: 'Inter', sans-serif !important;
  font-size: 12px !important;
  border-radius: 6px !important;
  padding: 2px 6px !important;
}

.md-typeset .mermaid .edgeLabel rect {
  rx: 6 !important;
  ry: 6 !important;
  opacity: 0.85 !important;
}

/* ── Flowchart: arrowheads ── */

.md-typeset .mermaid marker path {
  stroke-width: 1 !important;
}

/* ── Sequence diagrams: actors ── */

.md-typeset .mermaid .actor {
  rx: 6 !important;
  ry: 6 !important;
  stroke-width: 1.5px !important;
  filter: drop-shadow(0 2px 4px rgba(15, 23, 42, 0.06));
}

.md-typeset .mermaid .actor-line {
  stroke-width: 1.5px !important;
  stroke-dasharray: 4 3 !important;
}

.md-typeset .mermaid text.actor {
  font-family: 'Inter', sans-serif !important;
  font-size: 13px !important;
  font-weight: 600 !important;
}

/* ── Sequence diagrams: messages ── */

.md-typeset .mermaid .messageText {
  font-family: 'Inter', sans-serif !important;
  font-size: 12.5px !important;
}

.md-typeset .mermaid line.messages {
  stroke-width: 1.5px !important;
}

.md-typeset .mermaid .messageLine0,
.md-typeset .mermaid .messageLine1 {
  stroke-width: 1.5px !important;
}

/* ── Sequence diagrams: loop / alt / opt boxes ── */

.md-typeset .mermaid .loopText,
.md-typeset .mermaid .loopText > tspan {
  font-family: 'Inter', sans-serif !important;
  font-size: 11.5px !important;
  font-weight: 600 !important;
}

.md-typeset .mermaid rect.rect {
  rx: 6 !important;
  ry: 6 !important;
  stroke-width: 1.5px !important;
  stroke-dasharray: 5 3 !important;
}

/* ── Sequence diagrams: notes ── */

.md-typeset .mermaid .note {
  rx: 6 !important;
  ry: 6 !important;
  stroke-width: 1.5px !important;
  filter: drop-shadow(0 1px 3px rgba(15, 23, 42, 0.08));
}

.md-typeset .mermaid .noteText {
  font-family: 'Inter', sans-serif !important;
  font-size: 12px !important;
}

/* ── Dark mode overrides ── */

[data-md-color-scheme="slate"] .md-typeset .mermaid .node rect,
[data-md-color-scheme="slate"] .md-typeset .mermaid .node polygon,
[data-md-color-scheme="slate"] .md-typeset .mermaid .node circle,
[data-md-color-scheme="slate"] .md-typeset .mermaid .node ellipse {
  filter: drop-shadow(0 2px 6px rgba(2, 6, 23, 0.35));
}

[data-md-color-scheme="slate"] .md-typeset .mermaid .actor {
  filter: drop-shadow(0 2px 6px rgba(2, 6, 23, 0.35));
}

[data-md-color-scheme="slate"] .md-typeset .mermaid .note {
  filter: drop-shadow(0 1px 4px rgba(2, 6, 23, 0.4));
}

.md-footer {
  background:
    linear-gradient(180deg, transparent, rgba(37, 99, 235, 0.04)),
    var(--md-default-bg-color);
  border-top: 1px solid var(--navarena-border);
}

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

.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.js .reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--navarena-bg-subtle);
}

::-webkit-scrollbar-thumb {
  background: rgba(37, 99, 235, 0.45);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(37, 99, 235, 0.7);
}


@media screen and (max-width: 76.1875em) {
  .md-main__inner {
    margin-top: 0;
  }

  .md-content__inner {
    padding-right: 1rem;
  }

  .hero-content {
    padding: 2.25rem 1.25rem 2rem;
    gap: 0.75rem;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-floating-shapes {
    display: none;
  }

  .feature-grid,
  .persona-grid,
  .section-grid {
    grid-template-columns: 1fr;
  }

  .md-nav--primary .md-nav__title {
    background: var(--md-primary-fg-color);
  }
}

@media (prefers-reduced-motion: reduce) {
  .md-nav__link,
  .md-typeset a,
  .md-typeset .md-button,
  .feature-card,
  .persona-card,
  .section-card,
  .float-shape,
  .draw-path,
  .js .reveal {
    transition: none !important;
    animation: none !important;
  }

  .js .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}