/* Stránky témat pro vyhledávače (server/seo.js) – lehká verze vzhledu aplikace */
:root {
  --bg: #f6f5ff; --card: #ffffff; --text: #1c1a33; --muted: #6b6889; --line: #e4e1f5;
  --primary: #6d5efc; --grad: linear-gradient(120deg, #6d5efc 0%, #a855f7 50%, #ff5c8a 100%);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11101c; --card: #1c1a2e; --text: #f1efff; --muted: #a9a5c9; --line: #2e2b48; --primary: #8b7dff; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 'Plus Jakarta Sans', system-ui, sans-serif; }
a { color: var(--primary); }
.top { display: flex; justify-content: space-between; align-items: center; max-width: 960px; margin: 0 auto; padding: 16px; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--text); text-decoration: none; }
.logo b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.top nav { display: flex; gap: 4px; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.top nav a { padding: 4px 10px; border-radius: 999px; font-weight: 800; font-size: .8rem; text-decoration: none; color: var(--muted); }
.top nav a[aria-current] { background: var(--primary); color: #fff; }
main { max-width: 960px; margin: 0 auto; padding: 8px 16px 40px; }
h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); line-height: 1.2; margin: .4rem 0; }
h1 .icon { font-size: .9em; }
h2 { margin-top: 2rem; }
h3 { margin: 1.2rem 0 .5rem; color: var(--muted); font-size: 1rem; }
.lead { font-size: 1.1rem; color: var(--muted); max-width: 700px; }
.crumbs { color: var(--muted); font-size: .9rem; margin: 0; }
.meta { color: var(--muted); display: flex; gap: .5rem; align-items: center; }
.lv { display: inline-block; padding: 1px 10px; border-radius: 999px; font-weight: 800; font-size: .85rem; color: #fff; background: var(--primary); }
.lv-A1 { background: #16a34a; } .lv-A2 { background: #0ea5e9; } .lv-B1 { background: #6d5efc; } .lv-B2 { background: #c026d3; } .lv-C1 { background: #e11d48; }
.cta { display: inline-block; margin: 1rem 0; padding: 14px 22px; border-radius: 14px; background: var(--grad); color: #fff; font-weight: 800; text-decoration: none; box-shadow: 0 10px 30px rgba(109, 94, 252, .25); }
.cta small { display: block; font-weight: 500; opacity: .9; }
.cta-wrap { text-align: center; }
table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: 14px; overflow: hidden; border: 1px solid var(--line); margin: 1rem 0; }
th, td { text-align: left; padding: 9px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .85rem; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: 0; }
td[lang="en"] { font-weight: 700; }
.rules { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 12px 16px 12px 34px; }
.rules li { margin: .4rem 0; }
.examples li { margin: .3rem 0; }
mark { background: rgba(109, 94, 252, .18); color: inherit; padding: 0 4px; border-radius: 4px; font-weight: 800; }
.tiles { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 8px; }
.tiles a { display: flex; gap: .5rem; align-items: center; padding: 10px 14px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; color: var(--text); text-decoration: none; font-weight: 600; }
.tiles a:hover { border-color: var(--primary); }
footer { text-align: center; color: var(--muted); padding: 24px 16px 40px; border-top: 1px solid var(--line); }
footer a { color: var(--muted); }
@media (max-width: 560px) { th, td { padding: 8px 10px; } .tiles { grid-template-columns: 1fr 1fr; } }