/* Společný základ designu (fáze D, kolo 3.1) pro hub, Econolab a Volby:
   písmo Manrope, barevné tokeny pro světlý a tmavý režim, logo, hlavička a patička.
   Hub ho importuje v site/src/styles/global.css, Econolab v src/main.tsx, Volbám ho
   s písmy přikopíruje scripts/assemble-apps.mjs. Třídy hlavičky a patičky mají předponu
   kb-, aby se nepletly s třídami aplikací. Markup hlavičky a patičky je jen v hubu
   (site/src/layouts/BaseLayout.astro), aplikacím ho při sestavení vloží assemble-apps. */

@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-display: swap;
  font-weight: 200 800;
  src: url("../fonts/manrope-latin-ext-wght-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF,
    U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-display: swap;
  font-weight: 200 800;
  src: url("../fonts/manrope-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329,
    U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- Tokeny ---------- */

:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f4f4f5;
  --fg: #0a0a0b;
  --muted: #52525b;
  --line: #e4e4e7;
  --brand: #f0d510;
  --on-brand: #0a0a0b;
  --btc: #f7931a;
  --ink: #0a0a0b;
  --photo: #16181b;
  --logo-q: var(--brand);
  --logo-road: #0a0a0b;

  --font: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --wide: 80rem;
  --measure: 43.75rem;
  --r-xl: 1.75rem;
  --r-lg: 1.375rem;
  --r-md: 1rem;
  --r-sm: 0.75rem;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0a0a0b;
    --surface: #151517;
    --fg: #fafafa;
    --muted: #a1a1aa;
    --line: #27272a;
    --logo-q: #ffffff;
    --logo-road: var(--brand);
  }
  :root:not([data-theme="light"]) .kb-i-moon {
    display: none;
  }
  :root:not([data-theme="light"]) .kb-i-sun {
    display: block;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0a0a0b;
  --surface: #151517;
  --fg: #fafafa;
  --muted: #a1a1aa;
  --line: #27272a;
  --logo-q: #ffffff;
  --logo-road: var(--brand);
}
:root[data-theme="dark"] .kb-i-moon {
  display: none;
}
:root[data-theme="dark"] .kb-i-sun {
  display: block;
}

/* ---------- Základ ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 5.5rem;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.kb-wrap {
  width: min(100% - 3rem, var(--wide));
  margin-inline: auto;
}
.kb-skip {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  z-index: 50;
  padding: 0.6rem 0.9rem;
  border-radius: 0.6rem;
  background: var(--brand);
  color: var(--on-brand);
  font-weight: 800;
}
.kb-skip:focus {
  left: 0.5rem;
}

/* Logo z jednoho symbolu: barvy přes --logo-q a --logo-road. */
.kb-logo-road {
  fill: var(--logo-road);
}
.kb-logo-q {
  fill: var(--logo-q);
}
.kb-logo-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* ---------- Hlavička ---------- */

.kb-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
  font-family: var(--font);
  color: var(--fg);
  line-height: 1.6;
}
.kb-header .kb-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.75rem;
  padding-block: 0.75rem;
}
.kb-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  font-weight: 800;
  font-size: 1.125rem;
  line-height: 1.05;
  letter-spacing: -0.015em;
  text-decoration: none;
}
.kb-brand svg {
  flex: none;
  width: 3.375rem;
  height: 2.7rem;
}
.kb-header-end {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 1.25rem;
}
.kb-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.375rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9375rem;
  font-weight: 600;
}
.kb-nav a {
  display: inline-block;
  padding-block: 0.75rem;
  color: inherit;
  text-decoration: none;
}
.kb-nav a:hover {
  box-shadow: inset 0 -3px 0 var(--line);
}
.kb-nav a[aria-current="page"] {
  box-shadow: inset 0 -3px 0 var(--brand);
}
.kb-tools {
  display: flex;
  gap: 0.5rem;
}
.kb-support {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0 1.1rem;
  border-radius: 999px;
  background: var(--brand);
  color: var(--on-brand);
  font-size: 0.9375rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 0.2s ease;
}
.kb-support:hover {
  transform: translateY(-1px);
}
.kb-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--fg);
  cursor: pointer;
}
.kb-icon-btn svg {
  width: 18px;
  height: 18px;
}
.kb-icon-btn:hover {
  border-color: var(--fg);
}
.kb-i-sun {
  display: none;
}
@media (max-width: 48rem) {
  .kb-header .kb-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.25rem 1rem;
    padding-bottom: 0;
  }
  .kb-header-end {
    display: contents;
  }
  .kb-tools {
    grid-column: 2;
    grid-row: 1;
  }
  .kb-nav {
    grid-column: 1 / -1;
    margin-inline: -1.5rem;
    padding-inline: 1.5rem;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .kb-nav ul {
    flex-wrap: nowrap;
    white-space: nowrap;
  }
  /* Na mobilu jen znak, název by hlavičku rozbil do čtyř řádků (odkaz má aria-label). */
  .kb-brand > span {
    display: none;
  }
  .kb-tools {
    gap: 0.375rem;
  }
  .kb-tools .kb-icon-btn {
    width: 2.5rem;
    height: 2.5rem;
  }
  .kb-support {
    min-height: 2.5rem;
    padding: 0 0.95rem;
  }
  .kb-header .kb-wrap {
    padding-bottom: 0.75rem;
  }
  /* S JavaScriptem (theme.js, třída .has-menu) se navigace schová za tlačítko Menu
     a otevírá se jako seznam pod hlavičkou. Bez něj zůstává řádek k posunutí. */
  .kb-header:not(.has-menu) .kb-wrap {
    padding-bottom: 0;
  }
  .kb-header.has-menu .kb-nav {
    display: none;
  }
  .kb-header.has-menu.is-open .kb-nav {
    display: block;
    overflow: visible;
    padding-bottom: 0.5rem;
  }
  .kb-header.has-menu .kb-nav ul {
    flex-direction: column;
    gap: 0;
    white-space: normal;
    font-size: 1.0625rem;
  }
  .kb-header.has-menu .kb-nav li + li {
    border-top: 1px solid var(--line);
  }
  .kb-header.has-menu .kb-nav a {
    display: block;
    padding: 0.85rem 0;
  }
  .kb-header.has-menu .kb-nav a:hover {
    box-shadow: none;
    color: var(--muted);
  }
  .kb-header.has-menu .kb-nav a[aria-current="page"] {
    box-shadow: inset 3px 0 0 var(--brand);
    padding-left: 0.85rem;
  }
}
/* Tlačítko Menu jen na úzkém displeji, ikona podle stavu. */
@media (min-width: 48.0625rem) {
  .kb-menu-btn {
    display: none;
  }
}
.kb-i-close,
.kb-header.is-open .kb-i-menu {
  display: none;
}
.kb-header.is-open .kb-i-close {
  display: block;
}
@media (max-width: 48rem) and (prefers-reduced-motion: no-preference) {
  .kb-header.has-menu.is-open .kb-nav {
    animation: kb-menu-in 0.25s cubic-bezier(0.2, 0.7, 0.2, 1);
  }
}
@keyframes kb-menu-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
}

/* ---------- Patička (vždy tmavá) ---------- */

.kb-footer {
  --logo-q: #ffffff;
  --logo-road: var(--brand);
  margin-top: 6rem;
  overflow: hidden;
  border-top: 1px solid #27272a;
  background-color: #0a0a0b;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .07 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  color: #fafafa;
  font-family: var(--font);
  line-height: 1.6;
}
.kb-footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 11.5rem), 1fr));
  gap: 2rem;
  padding-top: 3.75rem;
}
.kb-footer-about {
  grid-column: span 2;
  min-width: 0;
}
.kb-footer-about svg {
  width: 5.25rem;
  height: 4.2rem;
}
.kb-footer-about p {
  margin: 1rem 0 0;
  max-width: 24rem;
  color: #d4d4d8;
}
.kb-footer-about .kb-footer-small {
  margin-top: 0.6rem;
  font-size: 0.875rem;
  color: #a1a1aa;
}
.kb-footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.9375rem;
}
.kb-footer-col h2 {
  margin: 0 0 0.2rem;
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #a1a1aa;
}
.kb-footer-col a {
  color: #fafafa;
  text-decoration: none;
}
.kb-footer-col a:hover {
  text-decoration: underline;
}
.kb-footer-mark {
  margin: 3.5rem auto 0;
  font-weight: 800;
  font-size: clamp(3.5rem, 9.4vw, 8.5rem);
  line-height: 0.86;
  letter-spacing: -0.055em;
  color: #232327;
  transform: translateY(16%);
  user-select: none;
}
.kb-footer-mark span {
  color: var(--brand);
}
@media (max-width: 40rem) {
  .kb-footer-about {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}