/* ============================
Whylee style.css — v7000
============================= */
:root{
  --bg:#0b1220;        /* deep slate */
  --bg-soft:#0e1726;   /* panel */
  --fg:#e6eef8;        /* text */
  --muted:#9fb3c8;
  --brand:#0a2a43;     /* dark azure */
  --accent:#47b0ff;    /* blue accent */
  --ok:#52c41a; --warn:#faad14; --err:#ff4d4f;
  --radius:16px;
  --shadow:0 10px 30px rgba(0,0,0,.25);
}

*{box-sizing:border-box}
html,body{height:100%}
html{color-scheme:dark}
body{
  margin:0; font:16px/1.4 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background:linear-gradient(180deg,var(--bg) 0%, #0a1020 100%);
  color:var(--fg);
}

/* Header / Footer -------------------------------------------------------- */
.app-header{
  display:flex; align-items:center; justify-content:space-between;
  gap:12px; padding:14px 16px; position:sticky; top:0; z-index:20;
  background:linear-gradient(180deg, rgba(10,16,32,.9), rgba(10,16,32,.65));
  backdrop-filter:saturate(120%) blur(8px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.brand{margin:0;font-size:20px;letter-spacing:.5px}
.header-actions{display:flex; gap:8px}
button{border:0; padding:10px 14px; border-radius:12px; cursor:pointer; font-weight:600}
button.primary{background:var(--accent); color:#08192d}
button.secondary{background:#1b253a; color:var(--fg)}
button.icon{background:#1b253a; color:var(--fg); padding:8px 10px; border-radius:12px}
button:disabled{opacity:.6; cursor:not-allowed}

.app-shell{max-width:980px; margin:18px auto; padding:0 16px 120px}
.card{
  background:linear-gradient(180deg, #0e1726, #0b1220);
  border:1px solid rgba(255,255,255,.06);
  box-shadow:var(--shadow); border-radius:var(--radius); padding:18px; margin:14px 0;
}
.card h2{margin:0 0 8px 0; font-size:18px}
.muted{color:var(--muted)}

.tabs{display:grid; grid-template-columns:repeat(3,1fr); gap:8px}
.tabs a{
  display:block; text-align:center; padding:12px; border-radius:12px; text-decoration:none; color:var(--fg);
  background:#0f1a2e; border:1px solid rgba(255,255,255,.06)
}
.tabs a.active{outline:2px solid var(--accent)}

.list{display:grid; gap:10px}
.row{display:flex; align-items:center; justify-content:space-between; gap:12px; padding:12px; border-radius:12px; background:#0f1a2e; border:1px solid rgba(255,255,255,.06)}
input[type="text"], input[type="search"], textarea{
  width:100%; background:#0f1a2e; color:var(--fg); border:1px solid rgba(255,255,255,.08);
  padding:10px 12px; border-radius:12px;
}
.toggle{appearance:none; width:42px; height:26px; background:#273650; border-radius:26px; position:relative; outline:none; cursor:pointer; border:1px solid rgba(255,255,255,.06)}
.toggle:checked{background:#1e2d47}
.toggle::after{content:""; position:absolute; top:50%; left:4px; transform:translateY(-50%); width:18px; height:18px; border-radius:50%; background:var(--accent); transition:left .2s}
.toggle:checked::after{left:20px}

.badge{display:inline-flex; align-items:center; gap:6px; padding:6px 8px; border-radius:999px; font-size:12px; background:#13213a; border:1px solid rgba(255,255,255,.06)}
.kv{display:grid; grid-template-columns:140px 1fr; gap:8px; align-items:center}

.app-footer{
  position:fixed; inset:auto 0 0 0; background:linear-gradient(180deg, rgba(10,16,32,.0), rgba(10,16,32,.9));
  backdrop-filter: blur(8px); padding:14px 16px; border-top:1px solid rgba(255,255,255,.06)
}

/* Progressive enhancement */
@media (min-width: 680px){
  .tabs{gap:12px}
  .brand{font-size:22px}
}

/* Offline bar (used by /js/ui/offlineAlert.js) -------------------------- */
.netbar{
  position:fixed; top:0; left:0; right:0;
  background:#7a1f1f; color:#fff; text-align:center;
  font:14px/1.2 system-ui, sans-serif;
  padding:8px 12px; z-index:10000; opacity:0; transform:translateY(-100%);
  transition:opacity .25s, transform .25s;
}
.netbar.visible{ opacity:1; transform:translateY(0) }
@media (prefers-reduced-motion: reduce){ .netbar{ transition:none } }

/* ===== Quiz UI ========================================================= */
.hidden{ display:none !important; }

/* Layer */
.quiz-layer{
  position:relative;
  max-width:980px; margin:18px auto; padding:0 16px 160px;
}

/* HUD (streak + labels) */
.quiz-hud{ display:grid; gap:8px; }
.streak{
  position:relative; height:10px; border-radius:999px;
  background:#0f1a2e; border:1px solid rgba(255,255,255,.06);
  overflow:hidden;
}
.streak-fill{
  height:100%; width:0%;
  background:linear-gradient(90deg, #0a2a66, #47b0ff);
  transition:width .28s ease;
}
.hud-labels{
  display:flex; gap:12px; align-items:center; justify-content:flex-start; flex-wrap:wrap;
}

/* Poster */
.poster-wrap{ margin:12px 0 }
.poster{
  width:100%; height:auto; display:block; border-radius:16px;
  box-shadow:0 20px 60px rgba(0,0,0,.35);
  border:1px solid rgba(255,255,255,.06);
}

/* Card */
.quiz-card .quiz-top{
  display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:8px;
}
.q-timer{
  flex:1; height:8px; border-radius:8px; background:#0f1a2e;
  overflow:hidden; border:1px solid rgba(255,255,255,.06);
}
.q-timer-bar{ height:100%; width:0%; background:#47b0ff; transition:none }

.question{ font-size:20px; margin:8px 0 12px }

/* Choices */
.choices{ display:grid; gap:10px; }
.choices button{
  text-align:left; width:100%;
  background:#0f1a2e; color:var(--fg); border:1px solid rgba(255,255,255,.08);
  padding:12px 14px; border-radius:12px; font-weight:600;
}
.choices.blink-ok{ animation:blinkOk .25s }
.choices.blink-bad{ animation:blinkBad .25s }
@keyframes blinkOk{ from{box-shadow:0 0 0 rgba(70,200,120,.0)} to{box-shadow:0 0 24px rgba(70,200,120,.35)} }
@keyframes blinkBad{ from{box-shadow:0 0 0 rgba(255,80,80,.0)} to{box-shadow:0 0 24px rgba(255,80,80,.35)} }
@media (prefers-reduced-motion: reduce){
  .choices.blink-ok,.choices.blink-bad{ animation:none }
}

/* Actions + Controls */
.quiz-actions{ display:flex; gap:8px; margin-top:10px }
.quiz-controls{
  position:sticky; bottom:80px; display:flex; gap:8px; justify-content:flex-end;
  margin-top:10px;
}

/* Countdown */
.countdown-overlay{
  position:fixed; inset:0; display:grid; place-items:center; z-index:50;
  background:linear-gradient(180deg, rgba(10,16,32,.7), rgba(10,16,32,.85));
  backdrop-filter: blur(4px);
}
.countdown-circle{
  width:160px; height:160px; border-radius:50%;
  background:radial-gradient(circle at 50% 40%, rgba(255,255,255,.18), rgba(255,255,255,0));
  display:grid; place-items:center; border:1px solid rgba(255,255,255,.18);
  box-shadow:0 30px 80px rgba(0,0,0,.35);
}
.countnum{ font-size:64px; font-weight:800; color:#e6f1ff; text-shadow:0 6px 24px rgba(0,0,0,.4) }

/* Perfect burst */
.perfect-burst{
  position:absolute; inset:auto 0 35% 0; height:0;
  pointer-events:none; opacity:0;
  background: radial-gradient(ellipse at center, rgba(71,176,255,.35), rgba(71,176,255,0) 60%);
  transition:opacity .25s;
}
.perfect-burst.active{ opacity:1; animation:burst .9s ease-out }
@keyframes burst{
  0%{ height:0; opacity:0 }
  20%{ height:220px; opacity:1 }
  100%{ height:0; opacity:0 }
}
@media (prefers-reduced-motion: reduce){
  .perfect-burst.active{ animation:none }
}

/* Start + Gameover cards */
.quiz-start, .gameover{ margin-top:14px }
.start-actions{ display:flex; gap:8px; flex-wrap:wrap }

/* Utility --------------------------------------------------------------- */
.visually-hidden{ position:absolute !important; width:1px; height:1px; overflow:hidden; clip:rect(1px,1px,1px,1px); white-space:nowrap; }