* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0b0a18;
  --card: rgba(255, 255, 255, 0.055);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f1eefe;
  --muted: #9a94c4;
  --faint: #6b6690;
  --a1: #7c5cff;
  --a2: #22d3ee;
  --good: #34d399;
  --bad: #fb7185;
  --warn: #fbbf24;
}

html, body { height: 100%; }

body {
  font-family: "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  background-image:
    radial-gradient(900px 600px at 85% -10%, rgba(124, 92, 255, 0.22), transparent 60%),
    radial-gradient(700px 500px at -10% 110%, rgba(34, 211, 238, 0.13), transparent 60%);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* AdSense side-banners — fixed to viewport sides so game zoom/centering is untouched */
.page-layout{ display: block; }
.ad-side{
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 160px;
  min-height: 600px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 5;
}
/* keep 20px gap from the 560px-centered game */
.ad-left{ left: calc(50% - 280px - 160px - 20px); }
.ad-right{ right: calc(50% - 280px - 160px - 20px); }
.ad-side .adsbygoogle{
  width: 100%;
  min-height: 580px;
}
.ad-label{
  font-size: 10px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--faint);
  padding: 6px 0;
  width: 100%;
  text-align: center;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
}
@media (min-width: 1350px){
  .ad-side{ width: 300px; min-height: 600px; }
  .ad-left{ left: calc(50% - 280px - 300px - 20px); }
  .ad-right{ right: calc(50% - 280px - 300px - 20px); }
  .ad-side .adsbygoogle{ min-height: 580px; }
}
/* hide fixed side banners when there isn't room — show them inline instead */
@media (max-width: 1100px){
  .ad-side{
    position: static;
    transform: none;
    width: min(100%, 728px);
    min-height: 100px;
    margin: 14px auto;
    left: auto;
    right: auto;
  }
  .ad-side .adsbygoogle{ min-height: 90px; }
  /* reorder so left ad appears above game, right below */
  .page-layout{
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .page-layout #app{ order: 1; width: 100%; }
  .ad-left{ order: 0; }
  .ad-right{ order: 2; }
}
@media (max-width: 480px){
  .ad-side{ width: 100%; border-radius: 10px; }
}

#app { position: relative; z-index: 1; }

.hidden { display: none !important; }

.screen {
  width: min(560px, 92vw);
  margin: 0 auto;
  padding: 48px 0 44px;
}

.logo {
  font-size: clamp(56px, 12vw, 84px);
  font-weight: 700;
  letter-spacing: -3px;
  line-height: 1;
}
.logo span {
  background: linear-gradient(135deg, var(--a1), var(--a2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline { color: var(--muted); margin-top: 14px; font-size: 16.5px; line-height: 1.5; }

.rules { display: flex; flex-wrap: wrap; gap: 8px; margin: 26px 0 22px; }
.rule {
  font-size: 13px;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 8px 13px;
  border-radius: 99px;
  background: var(--card);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 99px;
  background: var(--card);
  border: 1px solid var(--line);
  font-weight: 700;
  font-size: 14px;
}
.chip .lbl { color: var(--muted); font-weight: 600; font-size: 12px; }

.start-actions { margin-top: 8px; }

.btn {
  font: inherit;
  border: 0;
  border-radius: 14px;
  padding: 14px 22px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, var(--a1), #5b8cff);
  box-shadow: 0 10px 30px rgba(124, 92, 255, 0.35);
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}
.btn:hover { transform: translateY(-2px); filter: brightness(1.1); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; filter: none; }
.btn.ghost {
  background: transparent;
  border: 1px solid var(--line);
  box-shadow: none;
  color: var(--muted);
  font-weight: 600;
}
.btn.ghost:hover { color: var(--text); border-color: rgba(255, 255, 255, 0.3); }

.play-btn { font-size: 20px; padding: 16px 58px; }

.icon-btn {
  font: inherit;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 99px;
  padding: 7px 11px;
  cursor: pointer;
  font-size: 14px;
  transition: border-color 0.12s ease;
}
.icon-btn:hover { border-color: rgba(255, 255, 255, 0.3); }

.credit { margin-top: 36px; font-size: 12px; color: var(--faint); }

.hud { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.hud .chip { font-size: 14.5px; }

#global-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  z-index: 50;
  background: rgba(255, 255, 255, 0.06);
}
#global-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--a2), var(--a1));
  box-shadow: 0 0 12px rgba(124, 92, 255, 0.6);
  transition: background 0.3s ease;
}
#global-fill.low {
  background: linear-gradient(90deg, var(--warn), var(--bad));
  box-shadow: 0 0 12px rgba(251, 113, 133, 0.7);
  animation: glow 0.5s ease infinite alternate;
}

.time-chip { position: relative; font-size: 15.5px; border-color: rgba(34, 211, 238, 0.4); }
.time-chip.low { border-color: var(--bad); color: var(--bad); animation: glow 0.5s ease infinite alternate; }
#time-float {
  position: absolute;
  left: 50%;
  top: -4px;
  transform: translateX(-50%);
  font-weight: 700;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
}
#time-float.gain { color: var(--good); animation: floatUp 1.1s ease forwards; }
#time-float.loss { color: var(--bad); animation: floatUp 1.1s ease forwards; }
@keyframes floatUp {
  0% { opacity: 0; transform: translate(-50%, 6px); }
  20% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -18px); }
}

.card {
  position: relative;
  height: clamp(250px, 44vh, 350px);
  border-radius: 20px;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
}
.card-bg {
  position: absolute;
  inset: -40px;
  background-size: cover;
  background-position: center;
  filter: blur(28px) brightness(0.45) saturate(1.3);
  z-index: 1;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.card.ready .card-bg { opacity: 1; }
#card-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 16px;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.card.ready #card-img { opacity: 1; }
.card.loading #card-img { opacity: 0; }

.pill {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  padding: 6px 13px;
  border-radius: 99px;
  background: rgba(10, 8, 24, 0.6);
  border: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

#card-text {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  padding: 28px 30px;
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-size: clamp(19px, 4.8vw, 26px);
  line-height: 1.5;
  color: #f3effe;
  word-break: break-word;
}
.card.textmode #card-text { display: flex; }
.card.textmode #card-img,
.card.textmode .card-bg,
.card.textmode .loader { display: none; }
#card-text[data-mode="math"] {
  font-family: "Space Grotesk", Consolas, monospace;
  font-style: normal;
  font-weight: 700;
  font-size: clamp(26px, 6vw, 40px);
  letter-spacing: 1px;
}
#card-text[data-mode="quiz"] {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-style: normal;
  font-weight: 600;
  font-size: clamp(20px, 5vw, 28px);
  line-height: 1.4;
}
#card-text[data-mode="quote"]::before {
  content: "\201C";
  font-size: 58px;
  line-height: 0.5;
  color: var(--a2);
  font-style: normal;
}

.loader {
  position: absolute;
  z-index: 4;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.loader::after {
  content: "";
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--a2);
  animation: spin 0.8s linear infinite;
}
.card:not(.loading) .loader { display: none; }

.overlay {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: rgba(10, 8, 24, 0.66);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
  text-align: center;
  padding: 16px;
}
.overlay.show { opacity: 1; }
.overlay.good { box-shadow: inset 0 0 0 3px var(--good); }
.overlay.bad { box-shadow: inset 0 0 0 3px var(--bad); }
#ov-emoji { font-size: 44px; }
#ov-title { font-size: 26px; font-weight: 700; letter-spacing: 0.5px; }
#ov-sub { color: var(--muted); font-size: 15px; }
#ov-sub b { color: var(--text); }

.timer { margin-top: 14px; display: flex; align-items: center; gap: 10px; }
.timer-track {
  flex: 1;
  height: 10px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.09);
  overflow: hidden;
}
#timer-fill {
  height: 100%;
  width: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--a2), var(--a1));
  transition: background 0.3s ease;
}
#timer-fill.low {
  background: linear-gradient(90deg, var(--warn), var(--bad));
  animation: glow 0.5s ease infinite alternate;
}
#timer-secs {
  min-width: 44px;
  text-align: right;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: 15px;
}

#desc { margin-top: 12px; color: var(--muted); font-size: 13.5px; font-style: italic; min-height: 18px; }

#hint {
  margin-top: 6px;
  color: var(--warn);
  letter-spacing: 5px;
  font-weight: 700;
  min-height: 20px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.guess-row { display: flex; gap: 10px; margin-top: 16px; }
#guess-input {
  flex: 1;
  font: inherit;
  font-size: 17px;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  outline: none;
  min-width: 0;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
#guess-input:focus { border-color: var(--a1); box-shadow: 0 0 0 3px rgba(124, 92, 255, 0.25); }
#guess-input:disabled { opacity: 0.5; }

.meta-row { display: flex; justify-content: flex-end; gap: 10px; margin-top: 12px; }
.meta-row .btn { padding: 10px 16px; font-size: 13.5px; border-radius: 12px; }

.load-error {
  margin-top: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--bad);
  font-size: 14px;
}

.over-title { font-size: 42px; font-weight: 700; letter-spacing: -1px; }
.final-score {
  font-size: 68px;
  font-weight: 700;
  letter-spacing: -2px;
  background: linear-gradient(135deg, var(--a1), var(--a2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 4px 0;
}
#new-best { color: var(--warn); font-weight: 700; font-size: 16px; }
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin: 22px 0; }
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
}
.stat .v { font-size: 24px; font-weight: 700; }
.stat .k { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 1.2px; margin-top: 4px; }
.over-actions { display: flex; gap: 10px; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes glow { from { filter: brightness(1); } to { filter: brightness(1.35); } }
@keyframes popIn { 0% { transform: scale(0.96); opacity: 0.4; } 100% { transform: scale(1); opacity: 1; } }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-9px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(4px); }
}
.card.pop { animation: popIn 0.25s ease; }
.card.shake { animation: shake 0.4s ease; }

@media (max-width: 480px) {
  .screen { padding-top: 30px; }
  .hud .chip { font-size: 13px; padding: 6px 10px; }
  .guess-row { flex-direction: column; }
  .meta-row { justify-content: stretch; }
  .meta-row .btn { flex: 1; }
}