:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --ink: #14181a;
  --muted: #5d6a68;
  --faint: #8b9694;
  --rule: #e3e5df;
  --accent: #1f6b55;
  --accent-2: #3f8f74;
  --accent-3: #c9a227;
  --accent-ink: #ffffff;
  --wash: #edf4f0;
  --shadow-sm: 0 1px 2px rgba(20,24,26,.05);
  --shadow-lg: 0 2px 6px rgba(20,24,26,.05), 0 24px 60px -30px rgba(20,24,26,.25);
  --radius: 20px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1211;
    --surface: #141a19;
    --ink: #e7ece9;
    --muted: #9aa8a4;
    --faint: #6c7a76;
    --rule: #232c2a;
    --accent: #57bb99;
    --accent-2: #7fd0b2;
    --accent-3: #d9b64a;
    --accent-ink: #06120e;
    --wash: #17231f;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
    --shadow-lg: 0 2px 6px rgba(0,0,0,.4), 0 24px 60px -30px rgba(0,0,0,.8);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- pozadi ---------- */

.bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1100px 620px at 8% -8%, rgba(63,143,116,.30), transparent 62%),
    radial-gradient(900px 520px at 96% -4%, rgba(201,162,39,.20), transparent 60%),
    radial-gradient(760px 620px at 46% 108%, rgba(31,107,85,.16), transparent 62%),
    var(--bg);
}

@media (prefers-color-scheme: dark) {
  .bg {
    background:
      radial-gradient(1100px 620px at 8% -8%, rgba(87,187,153,.16), transparent 62%),
      radial-gradient(900px 520px at 96% -4%, rgba(217,182,74,.10), transparent 60%),
      radial-gradient(760px 620px at 46% 108%, rgba(87,187,153,.10), transparent 62%),
      var(--bg);
  }
}

.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(20,24,26,.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20,24,26,.055) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(1000px 700px at 50% 0%, #000 20%, transparent 78%);
  mask-image: radial-gradient(1000px 700px at 50% 0%, #000 20%, transparent 78%);
}

@media (prefers-color-scheme: dark) {
  .bg::after {
    background-image:
      linear-gradient(to right, rgba(231,236,233,.05) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(231,236,233,.05) 1px, transparent 1px);
  }
}

.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .32;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

@media (prefers-color-scheme: dark) { .grain { opacity: .18; } }

/* ---------- rozvrzeni ---------- */

.wrap { max-width: 62rem; margin: 0 auto; padding: 0 1.5rem; }
.narrow { max-width: 46rem; }

/* ---------- horni lista ---------- */

.site-head {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: 1.6rem 0;
}

.mark {
  width: 38px; height: 38px;
  border-radius: 11px;
  background: linear-gradient(145deg, var(--accent-2), var(--accent));
  color: var(--accent-ink);
  display: grid; place-items: center;
  font-weight: 600; font-size: .82rem; letter-spacing: .02em;
  box-shadow: 0 6px 18px -8px rgba(31,107,85,.7);
  flex: none;
}

.site-head .name { font-weight: 600; letter-spacing: -.01em; color: var(--ink); text-decoration: none; }
.site-head .sep { color: var(--rule); }
.site-head .where { color: var(--muted); font-size: .9rem; }
.site-head .spacer { flex: 1; }
.site-head .top-link { color: var(--muted); font-size: .875rem; text-decoration: none; }
.site-head .top-link:hover { color: var(--accent); }

/* ---------- hero ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 2.5rem;
  align-items: center;
  padding: 3.5rem 0 4rem;
}

@media (max-width: 54rem) {
  .hero { grid-template-columns: 1fr; gap: 2rem; padding: 2.5rem 0 3rem; }
  .hero-art { order: -1; max-width: 260px; }
}

h1 {
  font-family: "Fraunces", ui-serif, Georgia, serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-size: clamp(2.2rem, 1.3rem + 3.4vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -.025em;
  margin: 0 0 1rem;
}

h1 em {
  font-style: italic;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede { color: var(--muted); font-size: 1.1rem; margin: 0; max-width: 32rem; }

.badge {
  display: inline-flex; align-items: center; gap: .45rem;
  margin-top: 1.4rem;
  padding: .35rem .8rem .35rem .55rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-sm);
  font-size: .8rem; color: var(--muted);
}

.badge .dot-live {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(63,143,116,.18);
}

.hero-art { width: 100%; height: auto; }

/* ---------- karta ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 2.75rem 2.5rem;
}

@media (max-width: 40rem) { .card { padding: 1.75rem 1.35rem; border-radius: 16px; } }

h2 {
  font-family: "Fraunces", ui-serif, Georgia, serif;
  font-weight: 600;
  font-size: 1.22rem;
  letter-spacing: -.015em;
  margin: 2.8rem 0 .8rem;
  padding-top: 1.8rem;
  border-top: 1px solid var(--rule);
}

.card > h2:first-child,
.lang-block > h2:first-child,
.lang-block > .toc + h2 { margin-top: 0; padding-top: 0; border-top: 0; }

h3 { font-size: .95rem; font-weight: 600; color: var(--accent); margin: 1.8rem 0 .45rem; letter-spacing: .01em; }

p { margin: 0 0 1rem; }
ul { padding-left: 1.15rem; margin: .6rem 0 1.1rem; }
li { margin-bottom: .45rem; }
li::marker { color: var(--accent-2); }

a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .84em;
  background: var(--wash); color: var(--accent);
  padding: .14em .42em; border-radius: 5px;
}

/* ---------- dlazdice ---------- */

.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 1.6rem 0 .5rem; padding: 0; list-style: none; }

@media (max-width: 46rem) { .tiles { grid-template-columns: 1fr; } }

.tiles li {
  position: relative;
  background: linear-gradient(170deg, var(--wash), transparent 70%);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 1.15rem 1.15rem 1.25rem;
  margin: 0;
  font-size: .92rem;
  line-height: 1.6;
  color: var(--muted);
}

.tiles .ico {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--rule);
  display: grid; place-items: center;
  margin-bottom: .8rem;
  color: var(--accent);
}

.tiles .ico svg { width: 18px; height: 18px; }
.tiles .k { display: block; font-weight: 600; color: var(--ink); margin-bottom: .3rem; font-size: .95rem; }

/* ---------- obsah dokumentu ---------- */

.doc { display: grid; grid-template-columns: 15rem 1fr; gap: 2.5rem; align-items: start; }

@media (max-width: 56rem) { .doc { grid-template-columns: 1fr; gap: 1.5rem; } }

.toc {
  position: sticky; top: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 16px;
  padding: 1.2rem 1.3rem;
  box-shadow: var(--shadow-sm);
}

@media (max-width: 56rem) { .toc { position: static; } }

.toc h4 {
  margin: 0 0 .7rem; font-size: .7rem; text-transform: uppercase;
  letter-spacing: .1em; color: var(--faint); font-weight: 600;
}

.toc ol { margin: 0; padding: 0; list-style: none; counter-reset: t; font-size: .875rem; }
.toc li { margin: 0 0 .1rem; counter-increment: t; }

.toc a {
  display: flex; gap: .55rem; align-items: baseline;
  color: var(--muted); text-decoration: none;
  padding: .3rem .5rem; border-radius: 8px; line-height: 1.4;
}

.toc a::before { content: counter(t); color: var(--faint); font-size: .75rem; font-variant-numeric: tabular-nums; min-width: 1rem; }
.toc a:hover { background: var(--wash); color: var(--accent); }

/* ---------- prepinac jazyku ---------- */

.langbar {
  display: inline-flex; gap: .2rem; padding: .25rem;
  background: var(--wash); border: 1px solid var(--rule);
  border-radius: 999px; margin-bottom: 1.75rem;
}

.langbar button {
  border: 0; background: transparent; color: var(--muted);
  font-family: inherit; font-size: .85rem; padding: .35rem 1rem;
  border-radius: 999px; cursor: pointer; transition: all .15s;
}

.langbar button[aria-pressed="true"] {
  background: var(--surface); color: var(--accent);
  font-weight: 600; box-shadow: var(--shadow-sm);
}

.lang-block { display: block; }
.js .lang-block { display: none; }
.js .lang-block.is-active { display: block; }
html:not(.js) .langbar { display: none; }

/* ---------- paticka ---------- */

footer {
  margin: 3rem 0 4rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--rule);
  color: var(--muted); font-size: .875rem;
  display: flex; flex-wrap: wrap; gap: .4rem .9rem; align-items: center;
}

footer a { color: var(--muted); }
footer .dot { color: var(--rule); }

.meta { color: var(--faint); font-size: .875rem; margin: 0; }
.lang-note { color: var(--faint); font-size: .85rem; font-style: italic; margin: -.4rem 0 1.4rem; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }