/* =====================================================================
   style.css — zajednicki stil za kviz, enciklopediju i leaderboard
   Moderan, responsivan dizajn. Mobile-first.
   ===================================================================== */

:root {
  --bg: #0f1226;
  --bg-soft: #1a1f3a;
  --card: #20264a;
  --card-2: #262c55;
  --text: #eef1ff;
  --muted: #a6acd6;
  --accent: #7c5cff;
  --accent-2: #22d3ee;
  --good: #34d399;
  --bad: #f87171;
  --warn: #fbbf24;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .35);
  --maxw: 1080px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1200px 700px at 80% -10%, #2a2160 0%, var(--bg) 55%);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  line-height: 1.55;
  min-height: 100vh;
}

a { color: var(--accent-2); }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 20px 16px 60px;
}

/* ---------- Navigacija ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(15, 18, 38, .85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.topbar-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  flex-wrap: wrap;
}
.brand {
  font-weight: 800;
  letter-spacing: .3px;
  font-size: 1.05rem;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand .dot { width: 12px; height: 12px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.nav a {
  color: var(--text);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 10px;
  font-weight: 600;
  font-size: .95rem;
}
.nav a:hover, .nav a.active { background: var(--card-2); }

/* ---------- Kartice ---------- */
.card {
  background: linear-gradient(180deg, var(--card), var(--card-2));
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

h1 { font-size: clamp(1.4rem, 2.4vw, 2rem); margin: .2em 0 .4em; }
h2 { font-size: 1.25rem; margin: .2em 0 .5em; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

/* ---------- Dugmad ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), #5b46d6);
  color: #fff; font-weight: 700;
  padding: 12px 18px; border-radius: 12px;
  font-size: 1rem; transition: transform .06s ease, filter .2s ease;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(1px); }
.btn.secondary { background: var(--card-2); border: 1px solid rgba(255,255,255,.12); }
.btn.ghost { background: transparent; border: 1px solid rgba(255,255,255,.18); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- Disclaimer traka ---------- */
.disclaimer {
  border: 1px solid rgba(251, 191, 36, .35);
  background: rgba(251, 191, 36, .10);
  color: #ffe8ad;
  border-radius: 12px;
  padding: 10px 14px;
  font-size: .88rem;
  margin: 12px 0;
}
.badge {
  display: inline-block; font-size: .72rem; font-weight: 700;
  padding: 3px 8px; border-radius: 999px; letter-spacing: .3px;
}
.badge.spirit { background: rgba(124,92,255,.2); color: #cdbcff; border:1px solid rgba(124,92,255,.4); }
.badge.science { background: rgba(34,211,238,.15); color: #a9eefb; border:1px solid rgba(34,211,238,.35); }
.badge.diff-lako { background: rgba(52,211,153,.15); color:#b6f3dd; }
.badge.diff-srednje { background: rgba(251,191,36,.15); color:#ffe8ad; }
.badge.diff-tesko { background: rgba(248,113,113,.15); color:#ffc4c4; }

/* ---------- KVIZ ---------- */
.quiz-img-wrap {
  width: 100%; aspect-ratio: 4 / 3; border-radius: 14px; overflow: hidden;
  background: #0b0e22; display: grid; place-items: center; margin-bottom: 14px;
  border: 1px solid rgba(255,255,255,.08);
}
.quiz-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.progress {
  height: 10px; border-radius: 999px; background: var(--bg-soft); overflow: hidden;
  border: 1px solid rgba(255,255,255,.08); margin: 8px 0 16px;
}
.progress > span { display:block; height:100%; width:0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .3s ease; }

.answers { display: grid; grid-template-columns: 1fr; gap: 10px; }
@media (min-width: 620px) { .answers { grid-template-columns: 1fr 1fr; } }
.answer {
  text-align: left; padding: 14px 16px; border-radius: 12px; cursor: pointer;
  background: var(--card-2); border: 1px solid rgba(255,255,255,.10);
  color: var(--text); font-size: 1rem; font-weight: 600; transition: .15s;
}
.answer:hover { border-color: var(--accent); }
.answer.correct { background: rgba(52,211,153,.18); border-color: var(--good); }
.answer.wrong { background: rgba(248,113,113,.18); border-color: var(--bad); }
.answer:disabled { cursor: default; }

.explain {
  margin-top: 14px; padding: 12px 14px; border-radius: 12px;
  background: var(--bg-soft); border: 1px solid rgba(255,255,255,.08);
}
.hud { display:flex; gap:14px; flex-wrap:wrap; align-items:center; justify-content:space-between; margin-bottom:6px; }
.hud .pill { background: var(--bg-soft); padding:6px 12px; border-radius:999px; font-weight:700; font-size:.9rem;
  border:1px solid rgba(255,255,255,.08); }

/* ---------- ENCIKLOPEDIJA ---------- */
.filters { display:grid; gap:10px; grid-template-columns: 1fr; margin-bottom:16px; }
@media (min-width: 720px){ .filters{ grid-template-columns: 2fr 1fr 1fr 1fr; } }
.input, select {
  width:100%; padding:12px 14px; border-radius:12px; font-size:1rem;
  background: var(--bg-soft); color: var(--text);
  border:1px solid rgba(255,255,255,.12);
}
.grid { display:grid; gap:16px; grid-template-columns: 1fr; }
@media (min-width:620px){ .grid{ grid-template-columns:1fr 1fr; } }
@media (min-width:920px){ .grid{ grid-template-columns:1fr 1fr 1fr; } }
.stone-card { overflow:hidden; padding:0; cursor:pointer; display:flex; flex-direction:column; }
.stone-card .thumb { aspect-ratio: 4/3; background:#0b0e22; }
.stone-card .thumb img { width:100%; height:100%; object-fit:cover; }
.stone-card .body { padding:14px 16px; }
.stone-card h3 { margin:.1em 0 .2em; font-size:1.1rem; }
.chips { display:flex; flex-wrap:wrap; gap:6px; margin-top:8px; }
.chip { font-size:.72rem; padding:3px 9px; border-radius:999px; background: var(--bg-soft);
  border:1px solid rgba(255,255,255,.1); color: var(--muted); }

/* Modal */
.modal-backdrop {
  position:fixed; inset:0; background:rgba(4,6,18,.7); backdrop-filter: blur(4px);
  display:none; place-items:center; z-index:50; padding:16px;
}
.modal-backdrop.open { display:grid; }
.modal {
  width:100%; max-width:760px; max-height:90vh; overflow:auto;
  background: linear-gradient(180deg, var(--card), var(--card-2));
  border:1px solid rgba(255,255,255,.1); border-radius:18px; box-shadow: var(--shadow);
}
.modal .hero { aspect-ratio: 16/9; background:#0b0e22; }
.modal .hero img { width:100%; height:100%; object-fit:cover; }
.modal .content { padding:20px; }
.section-title { color: var(--accent-2); font-size:.8rem; text-transform:uppercase;
  letter-spacing:.6px; margin:18px 0 4px; font-weight:800; }
.kv { display:grid; grid-template-columns: 140px 1fr; gap:6px 12px; margin:10px 0; font-size:.95rem; }
.kv dt { color: var(--muted); }
.close-x { float:right; cursor:pointer; font-size:1.5rem; line-height:1; color:var(--muted); background:none; border:none; }

/* ---------- LEADERBOARD ---------- */
table { width:100%; border-collapse: collapse; overflow:hidden; border-radius:12px; }
th, td { text-align:left; padding:12px 14px; border-bottom:1px solid rgba(255,255,255,.08); font-size:.95rem; }
th { color: var(--muted); font-weight:700; font-size:.82rem; text-transform:uppercase; letter-spacing:.4px; }
tbody tr:hover { background: rgba(255,255,255,.03); }
.rank { font-weight:800; }
.rank.gold { color:#ffd564; } .rank.silver { color:#d7dbe8; } .rank.bronze { color:#e6a763; }

.loader { text-align:center; padding:30px; color: var(--muted); }
.spinner { width:34px; height:34px; border-radius:50%; margin:0 auto 12px;
  border:3px solid rgba(255,255,255,.15); border-top-color: var(--accent); animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.error { border:1px solid rgba(248,113,113,.4); background:rgba(248,113,113,.1); color:#ffc4c4;
  padding:12px 14px; border-radius:12px; margin:12px 0; }

.footer-note { color: var(--muted); font-size:.82rem; margin-top:22px; }
.center { text-align:center; }
.mt { margin-top:16px; } .mb { margin-bottom:16px; }
.hidden { display:none !important; }