/* KickStorm OS website - one stylesheet for all pages (EN + DE). No web fonts,
 * no scripts: the system's own font stack, Helvetica-like everywhere. */
:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --ink: #15191f;
  --muted: #5b6573;
  --line: #e2e6eb;
  --accent: #1f7ae0;
  --accent-ink: #ffffff;
  --accent-soft: #e8f1fc;
  --band: #0f1722;
  --band-ink: #e9eef5;
  --band-muted: #a9b6c6;
  --radius: 14px;
  --font: "Helvetica Neue", Helvetica, "TeX Gyre Heros", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1218;
    --surface: #171b22;
    --ink: #e8ecf1;
    --muted: #9aa5b3;
    --line: #262c36;
    --accent: #4a98ff;
    --accent-soft: #15243a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.55 var(--font);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* header */
.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(10px); -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; gap: 16px; }
.brand { font-weight: 700; font-size: 19px; color: var(--ink); letter-spacing: -0.01em; }
.brand span { color: var(--accent); }
.nav { display: flex; gap: 18px; font-size: 15px; flex-wrap: wrap; }
.nav a { color: var(--muted); }
.nav a:hover { color: var(--ink); text-decoration: none; }

/* hero */
.hero { padding: 72px 0 40px; text-align: center; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-soft); padding: 5px 12px; border-radius: 999px; }
h1 { font-size: clamp(36px, 6vw, 64px); line-height: 1.05; letter-spacing: -0.025em; margin: 18px 0 16px; }
.lead { font-size: clamp(18px, 2.2vw, 22px); color: var(--muted); max-width: 760px; margin: 0 auto; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 28px; }
.btn { display: inline-block; padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 16px; }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.ghost { border: 1px solid var(--line); color: var(--ink); background: var(--surface); }
.btn:hover { text-decoration: none; filter: brightness(1.05); }
.shot { margin: 48px auto 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  box-shadow: 0 30px 80px -30px rgba(15, 23, 34, 0.45); }
.caption { font-size: 14px; color: var(--muted); margin-top: 10px; }

/* sections */
section { padding: 64px 0; }
h2 { font-size: clamp(28px, 3.6vw, 40px); letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 12px; }
h3 { font-size: 20px; margin: 0 0 8px; letter-spacing: -0.01em; }
.sub { color: var(--muted); max-width: 720px; margin: 0 0 32px; font-size: 18px; }
.center { text-align: center; }
.center .sub { margin-left: auto; margin-right: auto; }

.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card .tag { font-size: 13px; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; }
.card ul { padding-left: 20px; margin: 12px 0 0; }
.card li { margin: 6px 0; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.feature p { margin: 0; color: var(--muted); font-size: 16px; }

.band { background: var(--band); color: var(--band-ink); }
.band .sub, .band p { color: var(--band-muted); }
.band .card { background: #16202d; border-color: #243246; color: var(--band-ink); }
.band .card p, .band .card li { color: var(--band-muted); }

table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; font-size: 16px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
tr:last-child td { border-bottom: 0; }
.table-wrap { overflow-x: auto; }
.note { font-size: 14px; color: var(--muted); margin-top: 12px; }

/* text pages (privacy, imprint) */
.doc { max-width: 820px; padding: 48px 16px 72px; margin: 0 auto; }
.doc h1 { font-size: clamp(32px, 5vw, 44px); }
.doc h2 { font-size: 24px; margin-top: 40px; }
.doc .box { background: var(--accent-soft); border-radius: var(--radius); padding: 18px 22px; }
.doc .box ul { margin: 8px 0 0; padding-left: 20px; }
.doc table { font-size: 15px; }

/* footer */
footer { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: 14px; color: var(--muted); }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); }

@media (max-width: 820px) {
  .two, .grid { grid-template-columns: 1fr; }
  .nav .opt { display: none; }
  .hero { padding-top: 48px; }
  section { padding: 48px 0; }
}