/* Fabrikora — statický web. Bez externích závislostí (funguje offline i za CSP).
   Industriální motiv: ocelová šeď + roztavená jantarová. Světlé i tmavé téma. */

:root {
  --bg: #12151b;
  --panel: #191e27;
  --panel-2: #1f2530;
  --border: #2a313d;
  --text: #e7ebf2;
  --muted: #9aa4b4;
  --accent: #f5a623;      /* roztavený kov */
  --accent-2: #ff8c42;
  --steel: #6f93b0;
  --shadow: rgba(0, 0, 0, 0.35);
  --radius: 12px;
  --maxw: 900px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f3f0e9;         /* pískově béžová (rodina kámen) */
    --panel: #ffffff;
    --panel-2: #f7f5ef;
    --border: #e2ddd0;
    --text: #1d2229;
    --muted: #5f6b7a;
    --accent: #c9741a;
    --accent-2: #b85c12;
    --steel: #46617a;
    --shadow: rgba(30, 34, 41, 0.12);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 50% -200px, rgba(245, 166, 35, 0.10),
      transparent 70%),
    var(--bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- top bar --- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}
.topbar .wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 60px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text);
}
.brand img { width: 30px; height: 30px; border-radius: 7px; }
.nav { margin-left: auto; display: flex; gap: 18px; font-weight: 600; }
.nav a { color: var(--muted); }
.nav a:hover { color: var(--text); text-decoration: none; }

/* --- hero --- */
.hero {
  padding: 72px 0 48px;
  text-align: center;
}
.hero img.logo {
  width: 88px; height: 88px; border-radius: 20px;
  box-shadow: 0 10px 30px var(--shadow);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  margin: 0 0 10px;
  letter-spacing: -0.02em;
  text-wrap: balance;
  background: linear-gradient(180deg, var(--text), var(--muted));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .tagline {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--muted);
  max-width: 34ch;
  margin: 0 auto 28px;
  text-wrap: balance;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
}

/* --- buttons --- */
.btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 700;
  border: 1px solid transparent;
}
.btn.primary {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  color: #1a1206;
}
.btn.primary:hover { text-decoration: none; filter: brightness(1.05); }
.btn.ghost {
  border-color: var(--border);
  color: var(--text);
  background: var(--panel);
}
.btn.ghost:hover { text-decoration: none; border-color: var(--accent); }
.btn.disabled { opacity: 0.55; pointer-events: none; }

/* --- sections --- */
section { padding: 36px 0; }
h2 {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  text-wrap: balance;
}
h3 { font-size: 1.15rem; margin: 28px 0 8px; }
.lead { color: var(--muted); margin-top: 0; }

/* --- cards / steps --- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 22px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 1px 0 var(--shadow);
}
.card .step {
  display: inline-grid; place-items: center;
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--panel-2); color: var(--accent);
  font-weight: 800; font-variant-numeric: tabular-nums;
  border: 1px solid var(--border);
  margin-bottom: 10px;
}
.card h3 { margin: 0 0 6px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); }

/* --- play placeholder --- */
.play {
  margin-top: 22px;
  display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.qr {
  width: 128px; height: 128px; flex: none;
  display: grid; place-items: center;
  border-radius: 10px;
  background:
    repeating-conic-gradient(var(--panel-2) 0% 25%, transparent 0% 50%)
      50% / 16px 16px;
  border: 1px solid var(--border);
  color: var(--muted); font-size: 0.75rem; text-align: center;
}

/* --- guide content --- */
.content h2 { margin-top: 40px; }
.content ul, .content ol { padding-left: 22px; }
.content li { margin: 4px 0; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 0.95rem;
}
.table-scroll { overflow-x: auto; }
th, td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
thead th {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.72rem;
}
tbody tr:hover { background: var(--panel-2); }
td.num { font-variant-numeric: tabular-nums; }

.callout {
  border-left: 3px solid var(--accent);
  background: var(--panel);
  border-radius: 0 10px 10px 0;
  padding: 14px 18px;
  margin: 20px 0;
  color: var(--muted);
}
.callout strong { color: var(--text); }

/* --- privacy two-column --- */
.cols { display: grid; grid-template-columns: 1fr; gap: 28px; }
@media (min-width: 720px) { .cols { grid-template-columns: 1fr 1fr; } }
.cols .lang h2 { margin-top: 0; }

/* --- footer --- */
footer {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 28px 0 48px;
  color: var(--muted);
  font-size: 0.9rem;
}
footer .wrap { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
footer .sep { margin-left: auto; }

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