/* ==========================================================
   KERB LOGIC - vzhled webu
   Barvy a písmo měň jen tady nahoře v :root.
   ========================================================== */
:root {
  --bg: #0e1014;            /* pozadí stránky */
  --panel: #171a21;         /* pozadí karet */
  --line: #2a2f3a;          /* ohraničení */
  --text: #e8eaf0;          /* hlavní text */
  --muted: #9aa3b5;         /* tlumený text */
  --accent: #ff4d2e;        /* hlavní barva (tlačítka, nadpisy) */
  --accent-2: #ffd23f;      /* doplňková barva (zvýraznění) */
  --font: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
}
a { color: var(--accent-2); }
img { image-rendering: pixelated; max-width: 100%; }

.wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }

/* ---------- hlavička ---------- */
header.top { border-bottom: 3px solid var(--accent); background: #0a0c10; }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.logo { font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--text); text-decoration: none; font-size: 1.15rem; }
.logo span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 16px; font-size: .9rem; text-transform: uppercase; letter-spacing: .08em; }
nav a:hover { color: var(--text); }

/* ---------- hrdina (první obrazovka) ---------- */
.hero { padding: 56px 0 40px; border-bottom: 1px solid var(--line); }
.hero h1 { font-size: clamp(2rem, 7vw, 3.6rem); margin: 0 0 8px; text-transform: uppercase; letter-spacing: .08em; line-height: 1.1; }
.hero h1 em { color: var(--accent); font-style: normal; }
.tagline { color: var(--accent-2); font-size: 1.05rem; margin: 0 0 20px; }
.hero p { max-width: 620px; color: var(--muted); }

/* ---------- tlačítka ---------- */
.btn {
  display: inline-block; cursor: pointer; border: 0;
  background: var(--accent); color: #fff; font: inherit; font-weight: 700;
  text-transform: uppercase; letter-spacing: .08em;
  padding: 12px 22px; text-decoration: none;
  box-shadow: 4px 4px 0 #000;
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 #000; }
.btn:active { transform: translate(3px, 3px); box-shadow: 1px 1px 0 #000; }
.btn.ghost { background: transparent; border: 2px solid var(--line); color: var(--text); box-shadow: none; }
.btn.google { background: #fff; color: #222; }
.btn.small { padding: 6px 12px; font-size: .8rem; }

/* ---------- sekce ---------- */
section { padding: 40px 0; border-bottom: 1px solid var(--line); }
section h2 { margin: 0 0 16px; text-transform: uppercase; letter-spacing: .1em; font-size: 1.2rem; color: var(--accent); }
.cards { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--panel); border: 2px solid var(--line); padding: 16px; }
.card h3 { margin: 0 0 6px; font-size: 1rem; color: var(--accent-2); }
.card p { margin: 0; color: var(--muted); font-size: .92rem; }

/* ---------- přihlášení ---------- */
.auth { max-width: 420px; }
.tabs { display: flex; margin-bottom: 12px; }
.tabs button { flex: 1; padding: 10px; background: var(--panel); color: var(--muted); border: 2px solid var(--line); font: inherit; cursor: pointer; text-transform: uppercase; letter-spacing: .06em; }
.tabs button.active { color: var(--text); border-color: var(--accent); }
label { display: block; margin: 12px 0 4px; font-size: .85rem; color: var(--muted); }
input, select {
  width: 100%; padding: 10px; background: #0a0c10; color: var(--text);
  border: 2px solid var(--line); font: inherit;
}
input:focus, select:focus { outline: none; border-color: var(--accent-2); }
.row { margin-top: 16px; display: flex; gap: 10px; flex-wrap: wrap; }
.msg { margin-top: 12px; min-height: 1.4em; font-size: .9rem; }
.msg.err { color: #ff7b6b; }
.msg.ok { color: #7be08c; }
.or { text-align: center; color: var(--muted); margin: 14px 0 6px; font-size: .85rem; }

/* ---------- tabulka leaderboardu ---------- */
table { width: 100%; border-collapse: collapse; background: var(--panel); border: 2px solid var(--line); }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; }
td.time { color: var(--accent-2); font-weight: 700; }
.leader-tools { display: flex; gap: 12px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.leader-tools select { width: auto; min-width: 200px; }

/* ---------- stránka s hrou ---------- */
.game-frame { position: relative; width: 100%; aspect-ratio: 16 / 9; background: #000; border: 3px solid var(--accent); }
.game-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.notice { background: var(--panel); border-left: 4px solid var(--accent-2); padding: 10px 14px; margin: 16px 0; color: var(--muted); font-size: .9rem; }
.userbar { display: flex; gap: 12px; align-items: center; color: var(--muted); font-size: .9rem; }

/* ---------- patička ---------- */
footer { padding: 28px 0 48px; color: var(--muted); font-size: .85rem; }
footer a { color: var(--muted); }

/* ---------- právní stránky ---------- */
.legal { padding: 32px 0 48px; max-width: 720px; }
.legal h1 { color: var(--accent); }
.legal h2 { color: var(--accent-2); font-size: 1.05rem; text-transform: none; letter-spacing: 0; }

@media (max-width: 560px) {
  nav a { margin-left: 10px; font-size: .8rem; }
}