/* ==========================================================================
   docfw-cmp landing page styles
   Plain CSS, no build step, no external dependencies.
   ========================================================================== */

:root {
  color-scheme: light dark;

  /* Palette (light) */
  --color-bg: #f7f8fa;
  --color-bg-soft: #eef0f4;
  --color-surface: #ffffff;
  --color-text: #1a1d23;
  --color-text-muted: #5b6472;
  --color-text-faint: #8b93a1;
  --color-border: #e2e5ea;
  --color-accent: #5b5bd6;
  --color-accent-strong: #4744c4;
  --color-accent-soft: #eeeeff;
  --color-accent-contrast: #ffffff;
  --color-shadow: rgba(23, 26, 33, 0.08);
  --color-shadow-strong: rgba(23, 26, 33, 0.14);

  /* Layout */
  --max-width: 1080px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0e0f13;
    --color-bg-soft: #15171d;
    --color-surface: #1a1c23;
    --color-text: #e7e8ec;
    --color-text-muted: #a3a9b5;
    --color-text-faint: #767d8a;
    --color-border: #2a2d36;
    --color-accent: #9494f5;
    --color-accent-strong: #b3b3ff;
    --color-accent-soft: #23233a;
    --color-accent-contrast: #14141f;
    --color-shadow: rgba(0, 0, 0, 0.35);
    --color-shadow-strong: rgba(0, 0, 0, 0.5);
  }
}

/* ---------------------------------- Reset -------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
p,
ol,
ul {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

img,
svg {
  display: block;
  max-width: 100%;
}

.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

/* --------------------------------- Header -------------------------------- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  font-family: var(--font-mono);
}

.header-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.header-link:hover,
.header-link:focus-visible {
  color: var(--color-text);
  background: var(--color-bg-soft);
}

.header-link .icon {
  color: currentColor;
}

/* ---------------------------------- Hero --------------------------------- */

.hero {
  padding-block: var(--space-5) var(--space-4);
  background: linear-gradient(180deg, var(--color-bg-soft), var(--color-bg) 70%);
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  margin-top: var(--space-1);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  font-weight: 600;
  color: var(--color-text-muted);
}

.hero-desc {
  max-width: 640px;
  margin: var(--space-3) auto 0;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.hero-desc a {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color 0.15s ease;
}

.hero-desc a:hover,
.hero-desc a:focus-visible {
  text-decoration-color: currentColor;
}

/* -------------------------------- Sections ------------------------------- */

.frameworks,
.criteria {
  padding-block: var(--space-4);
}

.frameworks h2,
.criteria h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-desc {
  margin-top: 0.4rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* -------------------------------- Card grid ------------------------------- */

.card-grid {
  margin-top: var(--space-3);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-3);
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 2px var(--color-shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--space-3);
  gap: 0.75rem;
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-1);
}

.card-name {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.card-framework {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-faint);
}

.card-desc {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  flex: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: 0.25rem;
}

.badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  white-space: nowrap;
}

.badge--active {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.badge--soon {
  background: var(--color-bg-soft);
  color: var(--color-text-faint);
}

.card-link-home {
  position: relative;
  z-index: 2;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-faint);
  transition: color 0.15s ease;
}

.card-link-home:hover,
.card-link-home:focus-visible {
  color: var(--color-text);
  text-decoration: underline;
}

/* Active cards (Nextra, VitePress): the whole card is clickable via a "stretched link" —
   .card-link-main gets a full-card ::after so no anchors are nested. */

.card--active {
  border-color: var(--color-accent);
}

.card--active:hover,
.card--active:focus-within {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px var(--color-shadow-strong);
  border-color: var(--color-accent);
}

.card-link-main {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
}

.card-link-main::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
}

.card-link-main:hover,
.card-link-main:focus-visible {
  color: var(--color-accent-strong);
}

/* Coming-soon cards: muted, not clickable as a whole */

.card--soon {
  opacity: 0.72;
}

.card--soon .card-name {
  color: var(--color-text-muted);
}

.card--soon:hover {
  border-color: var(--color-border);
  box-shadow: 0 1px 2px var(--color-shadow);
}

.card-link-main--disabled {
  color: var(--color-text-faint);
  font-weight: 500;
  cursor: default;
}

/* -------------------------------- Criteria -------------------------------- */

.criteria {
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.criteria-grid {
  list-style: none;
  counter-reset: criteria;
  margin-top: var(--space-3);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-2);
}

.criteria-item {
  counter-increment: criteria;
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.85rem 1rem 0.85rem 3rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
}

.criteria-item::before {
  content: counter(criteria);
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.criteria-item small {
  color: var(--color-text-muted);
  font-size: 0.85em;
}

.criteria-item code {
  font-family: var(--font-mono);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.85em;
}

/* --------------------------------- Footer --------------------------------- */

.site-footer {
  padding-block: var(--space-3);
}

.footer-inner {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-faint);
}

.footer-inner a {
  color: var(--color-text-muted);
  font-weight: 600;
  transition: color 0.15s ease;
}

.footer-inner a:hover,
.footer-inner a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
}

/* ------------------------------ Focus states ------------------------------ */

a:focus-visible,
.card-link-main:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* -------------------------------- Responsive ------------------------------- */

@media (max-width: 640px) {
  :root {
    --space-5: 2.75rem;
    --space-4: 1.75rem;
  }

  .hero {
    padding-block: var(--space-5) var(--space-3);
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .criteria-grid {
    grid-template-columns: 1fr;
  }

  .card-footer {
    flex-wrap: wrap;
  }
}