:root {
  --bg: #f4f1fb;
  --bg-2: #e9e3f8;
  --card: rgba(255, 255, 255, 0.82);
  --card-border: rgba(110, 80, 200, 0.14);
  --text: #1d1734;
  --muted: #6b6488;
  --accent: #7c4dff;
  --accent-2: #ff4d8d;
  --gold: #f5b700;
  --ok: #19b36b;
  --bad: #ef3b4f;
  --btn: #ffffff;
  --btn-border: #d9d1f2;
  --shadow: 0 18px 50px rgba(60, 30, 140, 0.15);
  --orb-a: #b9a2ff;
  --orb-b: #ffb3cf;
  --orb-c: #9ee8ff;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #0e0b1a;
  --bg-2: #171230;
  --card: rgba(30, 24, 56, 0.78);
  --card-border: rgba(170, 140, 255, 0.16);
  --text: #f1edff;
  --muted: #a49cc8;
  --accent: #9b78ff;
  --accent-2: #ff5c97;
  --btn: #221b40;
  --btn-border: #3a3066;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --orb-a: #4b2bb3;
  --orb-b: #8a1f55;
  --orb-c: #155a73;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: "Outfit", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1200px 800px at 10% -10%, var(--bg-2), var(--bg));
  color: var(--text);
  overflow-x: hidden;
  transition: background-color .3s, color .3s;
}
button, input { font: inherit; color: inherit; }

.bg-orbs { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.bg-orbs span {
  position: absolute; width: 46vmax; height: 46vmax; border-radius: 50%;
  filter: blur(80px); opacity: .45; animation: drift 24s ease-in-out infinite alternate;
}
.bg-orbs span:nth-child(1) { background: var(--orb-a); top: -15vmax; left: -10vmax; }
.bg-orbs span:nth-child(2) { background: var(--orb-b); bottom: -20vmax; right: -12vmax; animation-delay: -8s; }
.bg-orbs span:nth-child(3) { background: var(--orb-c); top: 40%; left: 45%; width: 30vmax; height: 30vmax; animation-delay: -16s; }
@keyframes drift { to { transform: translate(6vmax, -4vmax) scale(1.1); } }

.app { min-height: 100vh; display: flex; justify-content: center; padding: 24px 16px 96px; }
.screen { display: none; width: 100%; max-width: 1100px; }
.screen.active { display: flex; flex-direction: column; align-items: center; animation: fadeIn .35s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } }

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* ---------- start screen ---------- */
.start-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; width: 100%; align-items: start; }
.start-card { padding: 36px 36px 32px; text-align: center; }
.logo {
  width: 64px; height: 64px; margin: 0 auto 10px; border-radius: 20px; display: grid; place-items: center;
  font-size: 34px; color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 30px rgba(124, 77, 255, .4); animation: spinStar 6s ease-in-out infinite;
}
@keyframes spinStar { 50% { transform: rotate(12deg) scale(1.06); } }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin: 0; line-height: 1.05; letter-spacing: -.02em; font-weight: 800; }
h1 span { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tagline { color: var(--muted); margin: 10px 0 28px; }

.field { display: block; text-align: left; margin-bottom: 22px; }
.field span, .difficulty legend { display: block; font-size: .85rem; font-weight: 600; color: var(--muted); margin-bottom: 8px; text-transform: uppercase; letter-spacing: .08em; }
.field input {
  width: 100%; padding: 14px 16px; border-radius: 14px; border: 2px solid var(--btn-border);
  background: var(--btn); font-size: 1.15rem; font-weight: 600; outline: none; transition: border-color .2s, box-shadow .2s;
}
.field input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent); }

.difficulty { border: 0; padding: 0; margin: 0; text-align: left; }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span {
  display: flex; flex-direction: column; align-items: center; padding: 12px 6px; border-radius: 14px; cursor: pointer;
  border: 2px solid var(--btn-border); background: var(--btn); transition: all .2s;
}
.seg span small { color: var(--muted); font-size: .8rem; }
.seg input:checked + span { border-color: var(--accent); background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, var(--btn)), var(--btn)); transform: translateY(-2px); box-shadow: 0 8px 20px color-mix(in srgb, var(--accent) 25%, transparent); }
.seg input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 2px; }

.btn {
  border: 0; cursor: pointer; border-radius: 999px; padding: 14px 34px; font-weight: 700; font-size: 1.05rem;
  transition: transform .15s, box-shadow .2s, filter .2s;
}
.btn:active { transform: scale(.97); }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 10px 28px color-mix(in srgb, var(--accent) 45%, transparent); }
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-2px); }
.btn-start { margin-top: 28px; font-size: 1.4rem; padding: 18px 72px; letter-spacing: .12em; }

/* auto-move toggle */
.toggle { display: flex; align-items: center; gap: 12px; margin-top: 20px; text-align: left; cursor: pointer; user-select: none; }
.toggle input { position: absolute; opacity: 0; pointer-events: none; }
.toggle-box {
  flex: none; width: 26px; height: 26px; border-radius: 8px; border: 2px solid var(--btn-border); background: var(--btn);
  display: grid; place-items: center; transition: all .2s;
}
.toggle-box::after { content: ""; width: 7px; height: 13px; border: solid #fff; border-width: 0 3px 3px 0; transform: rotate(45deg) scale(0); margin-top: -3px; transition: transform .15s; }
.toggle input:checked + .toggle-box { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border-color: transparent; }
.toggle input:checked + .toggle-box::after { transform: rotate(45deg) scale(1); }
.toggle input:focus-visible + .toggle-box { outline: 3px solid var(--accent); outline-offset: 2px; }
.toggle-text { display: flex; flex-direction: column; }
.toggle-text small { color: var(--muted); font-size: .85rem; }

/* ---------- ranking ---------- */
.ranking { padding: 24px; }
.ranking h2 { margin: 0 0 14px; font-size: 1.4rem; }
.tabs { display: flex; gap: 6px; padding: 5px; border-radius: 14px; background: color-mix(in srgb, var(--btn-border) 45%, transparent); margin-bottom: 12px; }
.tabs button { flex: 1; border: 0; background: transparent; padding: 9px 0; border-radius: 10px; cursor: pointer; font-weight: 600; color: var(--muted); }
.tabs button[aria-selected="true"] { background: var(--btn); color: var(--text); box-shadow: 0 3px 10px rgba(0,0,0,.08); }
.rank-table { width: 100%; border-collapse: collapse; }
.rank-table th { text-align: left; font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); padding: 6px 8px; }
.rank-table th:last-child, .rank-table td:last-child { text-align: right; }
.rank-table td { padding: 9px 8px; border-top: 1px solid var(--card-border); font-weight: 500; }
.rank-table td:first-child { width: 42px; font-weight: 700; color: var(--muted); }
.rank-table tr.top-1 td:first-child { color: var(--gold); }
.rank-table tr.top-2 td:first-child { color: #9aa4b5; }
.rank-table tr.top-3 td:first-child { color: #cd7f32; }
.rank-table tr.me td { color: var(--accent); font-weight: 700; }
.rank-table td.name { max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rank-note { color: var(--muted); font-size: .85rem; margin: 10px 0 0; min-height: 1em; }

/* ---------- game ---------- */
.hud { width: 100%; max-width: 760px; display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.hud-item { display: flex; flex-direction: column; min-width: 110px; }
.hud-item.right { text-align: right; }
.hud-item small { color: var(--muted); text-transform: uppercase; letter-spacing: .1em; font-size: .72rem; font-weight: 600; }
.hud-item b { font-size: 1.35rem; max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.timer {
  width: 74px; height: 74px; border-radius: 50%; display: grid; place-items: center; font-size: 2.1rem; font-weight: 800;
  background: var(--card); border: 3px solid var(--accent); box-shadow: var(--shadow); transition: color .2s, border-color .2s;
}
.timer.urgent { color: var(--bad); border-color: var(--bad); animation: pulse 1s ease-in-out infinite; }
.timer.stopped { animation: none; }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.28); } }

.stage { width: 100%; max-width: 760px; display: flex; flex-direction: column; align-items: center; }
.frame {
  margin: 0; padding: 10px; border-radius: 26px; position: relative;
  background: conic-gradient(from var(--ang, 0deg), var(--accent), var(--accent-2), var(--gold), var(--accent));
  box-shadow: 0 20px 50px rgba(0,0,0,.25), 0 0 0 1px rgba(255,255,255,.2) inset;
  animation: frameSpin 8s linear infinite;
}
@property --ang { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
@keyframes frameSpin { to { --ang: 360deg; } }
.frame-inner {
  width: min(300px, 68vw); aspect-ratio: 4 / 5; border-radius: 18px; overflow: hidden; background: #111;
  box-shadow: 0 0 0 4px rgba(255,255,255,.85) inset;
}
.frame-inner img { width: 100%; height: 100%; object-fit: cover; object-position: center 22%; display: block; opacity: 0; transition: opacity .25s; }
.frame-inner img.loaded { opacity: 1; }
.frame-inner img.wide { object-fit: contain; background: #111; }
.frame-inner img.placeholder { object-fit: contain; padding: 18%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.frame figcaption {
  position: absolute; left: 50%; bottom: -16px; transform: translateX(-50%); white-space: nowrap; max-width: 92%;
  overflow: hidden; text-overflow: ellipsis; background: var(--text); color: var(--bg); padding: 6px 16px; border-radius: 999px;
  font-weight: 700; font-size: .95rem; box-shadow: 0 6px 16px rgba(0,0,0,.25);
}
.frame figcaption:empty { display: none; }
.question { margin: 34px 0 18px; text-align: center; font-size: clamp(1.3rem, 3vw, 1.8rem); font-weight: 700; }
.answers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; width: 100%; }
.answer {
  position: relative; padding: 18px 14px; min-height: 72px; border-radius: 18px; cursor: pointer; font-weight: 600; font-size: 1.08rem;
  background: var(--btn); border: 3px solid var(--btn-border); box-shadow: 0 6px 18px rgba(0,0,0,.08);
  transition: transform .15s, border-color .15s, background-color .25s, box-shadow .2s;
}
.answer:hover:not(:disabled) { transform: translateY(-3px); border-color: var(--accent); }
.answer:disabled { cursor: default; }
.answer.selected { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 35%, transparent), 0 0 24px color-mix(in srgb, var(--accent) 50%, transparent); animation: selectPop .35s ease; }
@keyframes selectPop { 40% { transform: scale(1.05); } }
.answer.correct { background: var(--ok); border-color: var(--ok); color: #fff; }
.answer.wrong { background: var(--bad); border-color: var(--bad); color: #fff; opacity: .9; }
.answer.correct.selected { box-shadow: 0 0 0 5px color-mix(in srgb, var(--ok) 40%, transparent), 0 0 28px var(--ok); }
.answer.wrong.selected { box-shadow: 0 0 0 5px color-mix(in srgb, var(--bad) 40%, transparent), 0 0 28px var(--bad); opacity: 1; }

/* ---------- popup ---------- */
.overlay { position: fixed; inset: 0; background: rgba(10, 6, 25, .45); display: grid; place-items: center; z-index: 50; padding: 16px; backdrop-filter: blur(3px); }
.overlay[hidden] { display: none; }
.popup { position: relative; width: min(380px, 100%); padding: 30px 28px; text-align: center; animation: popIn .35s cubic-bezier(.2, 1.4, .4, 1); overflow: hidden; }
@keyframes popIn { from { transform: scale(.7); opacity: 0; } }
.popup h2 { margin: 0 0 6px; font-size: 1.7rem; }
.popup-score { margin: 6px 0; display: flex; flex-direction: column; align-items: center; }
.popup-score span { font-size: 4rem; font-weight: 800; line-height: 1; background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.popup-score small { color: var(--muted); text-transform: uppercase; letter-spacing: .12em; font-weight: 600; }
.popup-text { color: var(--muted); margin: 8px 0 22px; font-size: 1.05rem; }
.popup-text b { color: var(--text); }
.auto-bar { height: 6px; margin: 18px auto 0; width: 70%; border-radius: 99px; background: color-mix(in srgb, var(--btn-border) 60%, transparent); overflow: hidden; }
.auto-bar[hidden] { display: none; }
.auto-bar span { display: block; height: 100%; width: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.popup.hit { animation: hit .3s ease; }
@keyframes hit { 30% { transform: translate(-6px, 4px) rotate(-1.5deg); } 60% { transform: translate(5px, -3px) rotate(1deg); } }
.splat { position: absolute; pointer-events: none; z-index: 3; }

/* ---------- controls ---------- */
/* Theme + sound buttons: beside the title card on the start screen, next to the player name in the HUD. */
.start-card { position: relative; }
.controls { display: flex; gap: 10px; z-index: 5; }
.start-card > .controls { position: absolute; flex-direction: column; top: 0; right: calc(100% + 14px); }
.hud-left { display: flex; align-items: center; gap: 14px; }
.hud-controls .controls { flex-direction: row; gap: 8px; }
.hud-controls .icon-btn { width: 44px; height: 44px; }
.hud-controls .icon-btn svg { width: 22px; height: 22px; }
.icon-btn {
  width: 54px; height: 54px; border-radius: 50%; cursor: pointer; display: grid; place-items: center;
  background: var(--card); border: 1px solid var(--card-border); box-shadow: var(--shadow); backdrop-filter: blur(10px);
  transition: transform .2s;
}
.icon-btn:hover { transform: scale(1.08) rotate(-6deg); }
.icon-btn svg { width: 26px; height: 26px; }
.credits-link { position: fixed; bottom: 6px; left: 50%; transform: translateX(-50%); font-size: .72rem; color: var(--muted); opacity: .7; z-index: 5; }
.screen-game-on .credits-link { display: none; }

#fx { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 70; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

@media (max-width: 1240px) {
  /* Not enough room left of the card: tuck the buttons into its top-left corner. */
  .start-card > .controls { top: 16px; left: 16px; right: auto; flex-direction: row; }
  .start-card > .controls .icon-btn { width: 44px; height: 44px; }
  .start-card > .controls .icon-btn svg { width: 22px; height: 22px; }
}
@media (max-width: 860px) {
  .start-layout { grid-template-columns: 1fr; }
  .start-card { padding: 28px 20px; }
  #screen-start .btn-start { position: sticky; bottom: 84px; z-index: 10; }
}
@media (max-width: 560px) {
  .answers { grid-template-columns: 1fr; gap: 10px; }
  .answer { min-height: 56px; padding: 12px; }
  .frame-inner { width: min(220px, 60vw); }
  .question { margin: 30px 0 14px; }
  .hud-item { min-width: 0; }
  .hud-left { gap: 8px; }
  .hud-controls .controls { gap: 6px; }
  .hud-controls .icon-btn { width: 38px; height: 38px; }
  .hud-controls .icon-btn svg { width: 19px; height: 19px; }
  .hud-left .hud-item b { max-width: 90px; font-size: 1.1rem; }
  .icon-btn { width: 46px; height: 46px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}