/* telemetrie.online — marketing (sdílený vizuál s cloudem: TB-bold tokeny) */
:root {
  --bg: #0a1f36; --surface: #0d2743; --border: rgba(255,255,255,.09);
  --ink: rgba(255,255,255,.87); --ink2: rgba(255,255,255,.57); --ink3: rgba(255,255,255,.38);
  --brand: #3987e5; --cyan: #19c3d8; --good: #4ac26b;
  --glow: 0 0 0 1px rgba(57,135,229,.35), 0 8px 30px rgb(0 0 0 / .45);
}
@media (prefers-color-scheme: light) {
  :root { --bg:#eef2f7; --surface:#fff; --border:rgba(10,31,54,.12);
    --ink:rgba(10,31,54,.89); --ink2:rgba(10,31,54,.6); --ink3:rgba(10,31,54,.4);
    --brand:#2a78d6; --cyan:#0a97ab;
    --glow: 0 0 0 1px rgba(42,120,214,.30), 0 10px 30px rgb(15 34 58 / .16); }
}

/* Space Grotesk (nadpisy/značka) — stejný self-hosted font jako cloud.telemetrie.online
   a eshop.telemetrie.online, SIL OFL 1.1. Tělo textu zůstává na systémovém sansu. */
@font-face {
  font-family: "Space Grotesk"; font-style: normal; font-weight: 500; font-display: swap;
  src: url("fonts/space-grotesk-500.woff2") format("woff2");
}
@font-face {
  font-family: "Space Grotesk"; font-style: normal; font-weight: 700; font-display: swap;
  src: url("fonts/space-grotesk-700.woff2") format("woff2");
}
:root {
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; }
body {
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1100px 520px at 85% -10%, rgba(57,135,229,.16), transparent 60%),
    radial-gradient(900px 460px at -10% 108%, rgba(25,195,216,.09), transparent 55%),
    var(--bg);
  min-height: 100vh;
}
.wrap { max-width: 1060px; margin: 0 auto; padding: 0 1.2rem; }
a { color: var(--brand); text-decoration: none; }

header { position: sticky; top: 0; backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border); z-index: 10; }
header .wrap { display: flex; align-items: center; justify-content: space-between;
  padding: .8rem 1.2rem; gap: 1rem; }
.logo { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--ink);
  letter-spacing: -.02em; }
.logo .dot { color: var(--cyan); }
.logo { display: inline-flex; align-items: center; gap: .45rem; }
.logo-mark { height: 1.7em; width: auto; vertical-align: middle; }
nav { display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; }
nav a { color: var(--ink2); font-weight: 550; font-size: .92rem;
  padding: .4rem .75rem; border-radius: 9px; white-space: nowrap; }
nav a:hover { color: var(--ink); background: rgba(127,127,127,.12); }
.btn { display: inline-block; padding: .6rem 1.3rem; border-radius: 10px;
  font-weight: 650; font-size: .95rem; }
.btn-primary { color: #fff !important; background: linear-gradient(180deg, #4392ee, #2a78d6);
  box-shadow: 0 3px 14px rgba(42,120,214,.4); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { color: var(--ink); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }

.hero { padding: 5.5rem 0 3.5rem; text-align: center; }
.hero h1 { font-family: var(--font-display); font-size: clamp(1.9rem, 5vw, 3.1rem); line-height: 1.15;
  letter-spacing: -.03em; font-weight: 700; }
.hero h1 em { font-style: normal; color: var(--cyan); }
.hero p { max-width: 640px; margin: 1.1rem auto 1.8rem; color: var(--ink2);
  font-size: 1.08rem; }
.hero .cta { display: flex; gap: .8rem; justify-content: center; flex-wrap: wrap; }
.hero .note { margin-top: 1rem; font-size: .82rem; color: var(--ink3); }

section { padding: 2.6rem 0; }
h2 { font-family: var(--font-display); font-weight: 700; font-size: 1.5rem; letter-spacing: -.02em;
  margin-bottom: 1.3rem; text-align: center; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(280px,100%), 1fr)); gap: 1rem; }
.card { background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 1.3rem 1.4rem; box-shadow: 0 2px 8px rgb(0 0 0 / .18);
  transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease; }
.card:hover { box-shadow: var(--glow); transform: translateY(-2px); border-color: var(--brand); }
.card h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.02rem; margin-bottom: .4rem; }
.card p { color: var(--ink2); font-size: .92rem; }
.card .ico { font-size: 1.6rem; display: block; margin-bottom: .5rem; }

.steps { counter-reset: step; }
.steps .card { position: relative; padding-top: 2.4rem; }
.steps .card::before { counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; top: -1rem; left: 1.2rem; width: 2.2rem; height: 2.2rem;
  display: grid; place-items: center; border-radius: 50%; font-family: var(--font-mono);
  background: linear-gradient(180deg, #4392ee, #2a78d6); color: #fff; font-weight: 700; font-size: .95rem; }

.sensors { display: flex; gap: .6rem; flex-wrap: wrap; justify-content: center; }
.pill { padding: .45rem 1rem; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); color: var(--ink2); font-size: .88rem; }

.banner { background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 2.2rem; text-align: center; box-shadow: 0 0 0 1px rgba(57,135,229,.25),
  0 12px 40px rgb(0 0 0 / .3); }
.banner h2 { margin-bottom: .5rem; }
.banner p { color: var(--ink2); margin-bottom: 1.3rem; }

footer { border-top: 1px solid var(--border); margin-top: 2rem; padding: 1.6rem 0 2.2rem;
  color: var(--ink3); font-size: .85rem; }
footer .wrap { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
footer a { color: var(--ink2); }
@media (max-width: 640px) { .hero { padding-top: 3.2rem; } }