/* ============================================================
   MathMaker : Mind Challenge — landing page styles (V2 design).
   Loaded after site.css (tokens, base, nav, buttons, cards, footer).
   ============================================================ */
.fx-canvas, .spark-canvas { position: fixed; inset: 0; width: 100vw; height: 100vh; pointer-events: none; }
.fx-canvas { z-index: 0; }
.spark-canvas { z-index: 60; }

.sound-btn {
  display: inline-flex; align-items: flex-end; justify-content: center; gap: 0.2rem; width: 2.75rem; height: 2.75rem; padding: 0.8rem 0.7rem;
  border: 1px solid var(--c-line); border-radius: 50%; background: none;
}
.sound-btn__bar { width: 0.2rem; height: 35%; border-radius: 0.2rem; background: var(--c-muted); transition: height 0.3s; }
.sound-btn[aria-pressed='true'] { border-color: rgba(255, 109, 0, 0.6); }
.sound-btn[aria-pressed='true'] .sound-btn__bar { background: var(--c-accent); animation: eq 0.9s ease-in-out infinite alternate; }
.sound-btn[aria-pressed='true'] .sound-btn__bar:nth-child(2) { animation-delay: -0.3s; }
.sound-btn[aria-pressed='true'] .sound-btn__bar:nth-child(3) { animation-delay: -0.6s; }
.sound-btn[aria-pressed='true'] .sound-btn__bar:nth-child(4) { animation-delay: -0.15s; }
@keyframes eq { from { height: 20%; } to { height: 100%; } }

/* --- Intro gate --- */
.gate { position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; text-align: center; padding-bottom: var(--consent-h, 0px); }
.gate::before, .gate::after {
  content: ''; position: absolute; left: 0; right: 0; height: 50.5%; background: #070b11; z-index: -1;
  transition: transform 1.1s var(--ease-out);
}
.gate::before { top: 0; }
.gate::after { bottom: 0; }
.gate--leaving::before { border-bottom: 1px solid rgba(255, 109, 0, 0.7); box-shadow: 0 0 3rem rgba(255, 109, 0, 0.6); }
.gate--leaving::after { border-top: 1px solid rgba(255, 109, 0, 0.7); box-shadow: 0 0 3rem rgba(255, 109, 0, 0.6); }
.gate--leaving::before { transform: translateY(-101%); }
.gate--leaving::after { transform: translateY(101%); }
.gate--leaving .gate__inner { opacity: 0; transform: scale(1.15); filter: blur(10px); }
.gate__inner { display: grid; justify-items: center; gap: var(--space-6); transition: opacity 0.5s, transform 0.8s var(--ease-out), filter 0.6s; }
.gate__logo { width: 9rem; height: 10.8rem; overflow: visible; }
.gate__logo path { fill: transparent; stroke: var(--c-accent); stroke-width: 1.2; stroke-dasharray: 600; stroke-dashoffset: 600; animation: draw 2.2s var(--ease-out) forwards, fill-in 0.8s 1.6s forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fill-in { to { fill: var(--c-accent); filter: drop-shadow(0 0 1.5rem rgba(255, 109, 0, 0.8)); } }
.gate__word { font-size: 5rem; font-weight: 800; letter-spacing: 0.32em; margin-right: -0.32em; line-height: 1; }
.gate__word span { display: inline-block; opacity: 0; transform: translateY(0.6em) rotateX(-80deg); animation: letter-in 0.9s var(--ease-out) forwards; animation-delay: calc(0.6s + var(--i) * 0.07s); }
@keyframes letter-in { to { opacity: 1; transform: none; } }
.gate__sub { color: var(--c-muted); font-size: 1.1rem; letter-spacing: 0.9em; margin-right: -0.9em; text-transform: uppercase; }
.gate__meter { width: 24rem; height: 0.2rem; background: var(--c-line); border-radius: 1rem; overflow: hidden; }
.gate__meter-fill { display: block; height: 100%; background: var(--c-accent); transform-origin: left; transform: scaleX(var(--load, 0)); box-shadow: 0 0 1rem var(--c-accent); transition: transform 0.2s linear; }
.gate__count { font-size: 0.9rem; letter-spacing: 0.3em; color: var(--c-faint); }
.gate__actions { display: flex; gap: var(--space-4); margin-top: var(--space-4); opacity: 0; transform: translateY(1rem); transition: opacity 0.6s, transform 0.6s var(--ease-out); }
.gate--ready .gate__actions { opacity: 1; transform: none; }
.gate__hint { color: var(--c-faint); font-size: 0.9rem; }

/* --- Hero --- */
.hero { position: relative; min-height: 100vh; display: grid; grid-template-rows: 1fr auto; padding-top: 7rem; }
.hero__stage { position: relative; height: 36vh; margin-top: 4vh; display: grid; place-items: center; }
.hero__title {
  font-size: 11rem; font-weight: 800; letter-spacing: 0.06em; line-height: 1; transition: opacity 1.4s;
  background: linear-gradient(180deg, #fff 25%, var(--c-gold) 70%, var(--c-accent)); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 1.2rem rgba(255, 109, 0, 0.55)) drop-shadow(0 0 4rem rgba(255, 109, 0, 0.3));
}
/* With particles: the solid word sits exactly under the particle word (sized in JS) and fades in once the dust lands. */
.has-fx .hero__title { opacity: 0; font-size: var(--title-size, 11rem); letter-spacing: 0; transform: translateY(0.04em); }
.has-fx .hero__title--lit { opacity: 0.92; }
.hero__body { display: grid; justify-items: center; gap: var(--space-6); text-align: center; padding-bottom: var(--space-12); }
.hero__eyebrow { color: var(--c-muted); letter-spacing: 1.1em; margin-right: -1.1em; font-size: 1.15rem; font-weight: 600; }
.hero__tagline { font-size: 3.6rem; font-weight: 800; line-height: 1.08; max-width: 70rem; }
.hero__tagline em { font-style: normal; color: var(--c-accent); text-shadow: 0 0 2rem rgba(255, 109, 0, 0.55); }
.hero__lead { color: var(--c-muted); font-size: 1.35rem; max-width: 52rem; }
.hero__actions { display: flex; gap: var(--space-4); margin-top: var(--space-4); }
.hero__stats { display: flex; gap: var(--space-16); margin: var(--space-8) 0 0; padding: 0; list-style: none; }
.stat { display: grid; justify-items: center; }
.stat__num { font-size: 3.4rem; font-weight: 800; line-height: 1; background: linear-gradient(180deg, #fff, var(--c-gold)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat__label { color: var(--c-faint); font-size: 0.85rem; letter-spacing: 0.3em; text-transform: uppercase; margin-top: var(--space-2); }
.hero__hint { position: absolute; right: var(--space-8); top: 50vh; writing-mode: vertical-rl; color: var(--c-faint); font-size: 0.8rem; letter-spacing: 0.5em; text-transform: uppercase; }
.scroll-cue { justify-self: center; display: grid; justify-items: center; gap: var(--space-2); color: var(--c-faint); font-size: 0.75rem; letter-spacing: 0.4em; text-transform: uppercase; padding-bottom: var(--space-8); }
.scroll-cue__line { width: 0.12rem; height: 4rem; background: linear-gradient(var(--c-accent), transparent); animation: cue 2s var(--ease-out) infinite; transform-origin: top; }
@keyframes cue { 0% { transform: scaleY(0); } 60% { transform: scaleY(1); opacity: 1; } 100% { transform: scaleY(1); opacity: 0; } }

/* --- Marquee --- */
.marquee { position: relative; z-index: 2; overflow: hidden; padding-block: var(--space-6); border-block: 1px solid var(--c-line); background: rgba(10, 16, 24, 0.5); transform: rotate(-1.5deg) scale(1.03); }
.marquee__track { display: flex; gap: var(--space-12); width: max-content; animation: marquee 40s linear infinite; font-size: 2.6rem; font-weight: 800; letter-spacing: 0.04em; white-space: nowrap; }
.marquee__item { color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, 0.35); }
.marquee__item--hot { color: var(--c-accent); -webkit-text-stroke: 0; text-shadow: 0 0 1.5rem rgba(255, 109, 0, 0.6); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* --- Pitch (sticky kinetic type) --- */
.pitch { height: 320vh; }
.pitch__sticky { position: sticky; top: 0; height: 100vh; display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; width: min(var(--shell), 100% - var(--space-12)); margin-inline: auto; }
.pitch__lines { display: grid; gap: var(--space-2); }
.pitch__line {
  --lp: 0;
  font-size: 8.5rem; font-weight: 800; line-height: 1; letter-spacing: -0.02em;
  opacity: calc(0.08 + var(--lp) * 0.92); transform: translateX(calc((1 - var(--lp)) * -4rem)); filter: blur(calc((1 - var(--lp)) * 10px));
}
.pitch__line:nth-child(2) { color: var(--c-correct); text-shadow: 0 0 3rem rgba(43, 213, 137, 0.4); }
.pitch__line:nth-child(3) { color: var(--c-accent); text-shadow: 0 0 3rem rgba(255, 109, 0, 0.5); }
.pitch__sub { --lp: 0; margin-top: var(--space-8); max-width: 40rem; color: var(--c-muted); font-size: 1.5rem; opacity: var(--lp); transform: translateY(calc((1 - var(--lp)) * 2rem)); }
.pitch__art { height: 70vh; }

/* --- Timer (sticky scrub) --- */
.timer { height: 340vh; }
.timer__sticky { position: sticky; top: 0; height: 100vh; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: var(--space-12); width: min(var(--shell), 100% - var(--space-12)); margin-inline: auto; }
.timer__copy { display: grid; gap: var(--space-6); }
.timer__dial { --ring: var(--c-correct); position: relative; width: 34rem; aspect-ratio: 1; display: grid; place-items: center; }
.timer__dial[data-zone='warn'] { --ring: var(--c-warn); }
.timer__dial[data-zone='danger'] { --ring: var(--c-wrong); }
.timer__svg { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); overflow: visible; }
.timer__track { fill: none; stroke: rgba(255, 255, 255, 0.07); stroke-width: 3; }
.timer__arc { fill: none; stroke: var(--ring); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 289; stroke-dashoffset: var(--off, 0); filter: drop-shadow(0 0 4px var(--ring)); transition: stroke 0.3s; }
.timer__ticks line { stroke: rgba(255, 255, 255, 0.25); stroke-width: 0.6; }
.timer__readout { display: grid; justify-items: center; }
.timer__num { font-size: 13rem; font-weight: 800; line-height: 0.9; color: var(--ring); text-shadow: 0 0 3rem var(--ring); transition: color 0.3s; }
.timer__dial[data-zone='danger'] .timer__num { animation: pulse 0.5s ease-in-out infinite alternate; }
@keyframes pulse { to { transform: scale(1.06); } }
.timer__unit { color: var(--c-muted); letter-spacing: 0.5em; text-transform: uppercase; font-size: 1rem; }
.timer__brackets { display: grid; gap: var(--space-3); margin: 0; padding: 0; list-style: none; }
.bracket { display: grid; grid-template-columns: 1fr auto; align-items: center; padding: var(--space-4) var(--space-6); border: 1px solid var(--c-line); border-radius: var(--radius-md); background: rgba(255, 255, 255, 0.02); color: var(--c-faint); transition: all 0.35s var(--ease-out); }
.bracket__range { font-size: 1.15rem; font-weight: 600; letter-spacing: 0.05em; }
.bracket__mult { font-size: 1.8rem; font-weight: 800; }
.bracket--active { color: var(--c-text); border-color: var(--ring-color, var(--c-accent)); background: rgba(255, 109, 0, 0.1); transform: translateX(-1.5rem) scale(1.04); box-shadow: var(--glow); }
.bracket--active .bracket__mult { color: var(--c-accent-hot); }
.timer__mult { font-size: 9rem; font-weight: 800; line-height: 1; color: var(--c-accent); text-shadow: var(--glow); }

/* --- Category wheel --- */
.cats__grid { display: grid; grid-template-columns: auto 1fr; gap: var(--space-16); align-items: center; }
.wheel { --size: 46rem; position: relative; width: var(--size); height: var(--size); }
.wheel__edges { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.wheel__edge { stroke: rgba(255, 255, 255, 0.12); stroke-width: 0.7; stroke-linecap: round; transition: stroke 0.5s; }
.wheel__edge--lit { stroke: var(--c-accent); stroke-width: 0.9; stroke-dasharray: 2 2.5; animation: flow 1s linear infinite; filter: drop-shadow(0 0 1.2px var(--c-accent)); }
@keyframes flow { to { stroke-dashoffset: -9; } }
.wheel__node {
  --cat: var(--c-accent);
  position: absolute; left: calc(var(--x) * 1%); top: calc(var(--y) * 1%); transform: translate(-50%, -50%);
  display: grid; justify-items: center; gap: var(--space-2); width: 9rem; padding: 0; border: 0; background: none; text-align: center;
}
.wheel__icon {
  display: grid; place-items: center; width: 5.5rem; height: 5.5rem; border-radius: 1.4rem;
  background: rgba(255, 255, 255, 0.08); border: 0.12rem solid rgba(255, 255, 255, 0.12); color: var(--c-muted);
  font-size: 1.9rem; font-weight: 800; font-family: var(--font-math);
  transition: transform 0.5s var(--ease-spring), background-color 0.4s, box-shadow 0.4s, color 0.4s, border-color 0.4s;
}
.wheel__icon svg { width: 2.6rem; height: 2.6rem; }
.wheel__name { font-size: 0.95rem; font-weight: 600; letter-spacing: 0.04em; color: var(--c-faint); transition: color 0.3s; line-height: 1.25; }
.wheel__node--open .wheel__icon { color: var(--c-ink); background: var(--cat); border-color: transparent; }
.wheel__node--open .wheel__name { color: var(--c-muted); }
.wheel__node--active .wheel__icon { transform: scale(1.28); box-shadow: 0 0 0 0.4rem rgba(255, 255, 255, 0.08), 0 0 3rem var(--cat), 0 0 7rem var(--cat); }
.wheel__node--active .wheel__name { color: var(--c-text); font-weight: 800; }
.wheel__node:hover .wheel__icon { transform: scale(1.18) rotate(-6deg); }
.wheel__center { position: absolute; left: 50%; top: 52%; transform: translate(-50%, -50%); display: grid; justify-items: center; pointer-events: none; }
.wheel__compass { width: 10rem; height: 12rem; fill: var(--c-accent); filter: drop-shadow(0 0 2rem rgba(255, 109, 0, 0.6)); animation: sway 6s ease-in-out infinite; transform-origin: 50% 25%; }
@keyframes sway { 50% { transform: rotate(8deg); } }
.wheel__start { margin-top: var(--space-3); font-size: 1.6rem; font-weight: 800; letter-spacing: 0.3em; margin-right: -0.3em; color: var(--c-text); text-shadow: 0 0 1.5rem rgba(255, 109, 0, 0.9); }

.cat-panel {
  --cat: var(--c-accent);
  position: relative; display: grid; gap: var(--space-6); padding: var(--space-12); border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(36, 52, 75, 0.75), rgba(16, 24, 36, 0.75)); border: 1px solid var(--c-line); backdrop-filter: blur(16px);
  box-shadow: 0 2rem 6rem rgba(0, 0, 0, 0.45); overflow: hidden;
}
.cat-panel::before { content: ''; position: absolute; inset: -40% -20% auto auto; width: 30rem; height: 30rem; border-radius: 50%; background: var(--cat); opacity: 0.18; filter: blur(5rem); transition: background-color 0.6s; }
.cat-panel__top { display: flex; align-items: baseline; gap: var(--space-6); }
.cat-panel__id { font-size: 7rem; font-weight: 800; line-height: 0.8; color: var(--cat); text-shadow: 0 0 2.5rem var(--cat); transition: color 0.5s; }
.cat-panel__name { font-size: 3rem; font-weight: 800; line-height: 1.05; }
.cat-panel__topic { color: var(--c-muted); font-size: 1.3rem; }
.cat-panel__sample { position: relative; display: grid; place-items: center; min-height: 9rem; border-radius: var(--radius-md); background: rgba(0, 0, 0, 0.35); border: 1px dashed var(--c-line-strong); perspective: 40rem; }
.cat-panel__q { font-family: var(--font-math); font-size: 3.4rem; font-weight: 700; letter-spacing: 0.04em; }
.cat-panel__q--flip { animation: flip-in 0.6s var(--ease-out); }
@keyframes flip-in { from { transform: rotateX(90deg); opacity: 0; } to { transform: none; opacity: 1; } }
.cat-panel__qlabel { position: absolute; top: var(--space-3); left: var(--space-4); font-size: 0.75rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--c-faint); }
.cat-panel__facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin: 0; }
.fact { display: grid; gap: var(--space-1); padding: var(--space-4) var(--space-6); border-radius: var(--radius-md); background: rgba(255, 255, 255, 0.04); }
.fact dt { color: var(--c-faint); font-size: 0.8rem; letter-spacing: 0.2em; text-transform: uppercase; }
.fact dd { margin: 0; font-size: 1.6rem; font-weight: 800; }
.cat-panel__badges { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.badge-chip { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--space-2) var(--space-4); border-radius: var(--radius-pill); background: rgba(255, 255, 255, 0.06); font-weight: 600; font-size: 0.95rem; }
.badge-chip img { width: 1.8rem; height: 1.8rem; }

.climb { margin-top: var(--space-24); display: grid; gap: var(--space-6); }
.climb__title { font-size: 1.1rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--c-faint); }
.climb__bars { display: grid; grid-template-columns: repeat(7, 1fr); gap: var(--space-4); align-items: end; height: 22rem; }
.climb__bar { --cat: var(--c-accent); position: relative; display: grid; align-content: end; height: 100%; padding: 0; border: 0; background: none; text-align: left; }
.climb__fill {
  height: calc(var(--h) * 1%); min-height: 0.5rem; border-radius: var(--radius-sm) var(--radius-sm) 0.2rem 0.2rem;
  background: linear-gradient(180deg, var(--cat), transparent 140%); opacity: 0.55; transform-origin: bottom; transform: scaleY(0);
  transition: transform 1.4s var(--ease-out), opacity 0.4s, box-shadow 0.4s; transition-delay: calc(var(--i) * 0.08s);
}
.climb.is-in .climb__fill { transform: scaleY(1); }
.climb__bar--active .climb__fill { opacity: 1; box-shadow: 0 0 2.5rem var(--cat); }
.climb__label { position: absolute; left: 0; right: 0; bottom: calc(var(--h) * 1% + 0.75rem); display: grid; gap: 0.1rem; font-size: 1.05rem; font-weight: 800; }
.climb__label small { font-weight: 600; font-size: 0.8rem; color: var(--c-faint); letter-spacing: 0.05em; }
.climb__id { margin-top: var(--space-3); font-weight: 800; color: var(--cat); letter-spacing: 0.1em; }

/* --- Chips --- */
.chip {
  --cat: var(--c-accent);
  min-width: 2.75rem; min-height: 2.75rem; padding: 0 var(--space-3); border: 1px solid var(--c-line-strong); border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03); color: var(--c-muted); font-weight: 800; font-size: 0.95rem; transition: all 0.25s;
}
.chip:hover { border-color: var(--cat); color: var(--c-text); }
.chip[aria-pressed='true'] { background: var(--cat); border-color: var(--cat); color: var(--c-ink); box-shadow: 0 0 1.5rem var(--cat); }
.gate[hidden] { display: none; }

/* --- Play arena --- */
.arena {
  --cat: var(--c-accent);
  position: relative; display: grid; grid-template-columns: 22rem 1fr 22rem; gap: var(--space-8); min-height: 52rem; padding: var(--space-8);
  border-radius: 2.5rem; background: linear-gradient(170deg, rgba(28, 40, 57, 0.85), rgba(12, 18, 27, 0.9)); border: 1px solid var(--c-line);
  box-shadow: 0 3rem 8rem rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.06); overflow: hidden;
}
.arena::before { content: ''; position: absolute; inset: auto -10% -60% -10%; height: 60%; background: radial-gradient(closest-side, var(--cat), transparent); opacity: 0.18; transition: background-color 0.6s; pointer-events: none; }
.arena--shake { animation: shake 0.5s; }
@keyframes shake { 15%, 55% { transform: translateX(-1rem); } 35%, 75% { transform: translateX(1rem); } }
.arena--flash-ok { box-shadow: 0 0 0 0.3rem var(--c-correct), 0 0 8rem rgba(43, 213, 137, 0.4); }
.arena--flash-bad { box-shadow: 0 0 0 0.3rem var(--c-wrong), 0 0 8rem rgba(255, 59, 47, 0.4); }
.arena__side { display: grid; align-content: start; gap: var(--space-6); }
.panel { display: grid; gap: var(--space-2); padding: var(--space-6); border-radius: var(--radius-md); background: rgba(255, 255, 255, 0.04); border: 1px solid var(--c-line); }
.panel__label { color: var(--c-faint); font-size: 0.75rem; letter-spacing: 0.25em; text-transform: uppercase; }
.panel__value { font-size: 2.2rem; font-weight: 800; line-height: 1.1; }
.panel__value--sigma { color: var(--c-accent); }
.panel__value--eps { color: var(--c-gold); }
.panel__name { font-size: 1.4rem; font-weight: 800; line-height: 1.2; }
.tierbar { height: 0.7rem; border-radius: 1rem; background: rgba(255, 255, 255, 0.08); overflow: hidden; }
.tierbar__fill { display: block; height: 100%; width: 100%; transform-origin: left; transform: scaleX(var(--t, 0)); background: linear-gradient(90deg, var(--c-accent), var(--c-gold)); transition: transform 0.6s var(--ease-out); }
.hearts { display: flex; gap: var(--space-2); }
.heart { width: 2.4rem; height: 2.4rem; display: grid; place-items: center; border-radius: 0.6rem; background: #f44336; transition: transform 0.4s var(--ease-spring), opacity 0.4s, filter 0.4s; }
.heart svg { width: 1.5rem; height: 1.5rem; fill: #fff; }
.heart--lost { opacity: 0.25; filter: grayscale(1); transform: scale(0.8); }
.streak { display: grid; grid-template-columns: repeat(10, 1fr); gap: 0.25rem; }
.streak__seg { height: 0.9rem; border-radius: 0.2rem; background: rgba(255, 255, 255, 0.08); transition: background-color 0.3s, box-shadow 0.3s; }
.streak__seg--on { background: var(--c-accent); box-shadow: 0 0 0.8rem var(--c-accent); }
.streak--hot .streak__seg { background: linear-gradient(180deg, var(--c-gold), var(--c-wrong)); box-shadow: 0 0 1rem var(--c-accent); animation: flicker 0.2s infinite alternate; }
.streak__label { font-weight: 800; font-size: 1.1rem; }
.streak__label--hot { color: var(--c-gold); text-shadow: 0 0 1rem var(--c-accent); }

.arena__center { display: grid; grid-template-rows: auto auto auto 1fr auto; justify-items: center; gap: var(--space-6); min-width: 0; }
.ring { --ring: var(--c-correct); position: relative; width: 11rem; height: 11rem; display: grid; place-items: center; }
.ring[data-zone='warn'] { --ring: var(--c-warn); }
.ring[data-zone='danger'] { --ring: var(--c-wrong); }
.ring__svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.ring__track { fill: none; stroke: rgba(255, 255, 255, 0.08); stroke-width: 6; }
.ring__arc { fill: none; stroke: var(--ring); stroke-width: 6; stroke-linecap: round; stroke-dasharray: 264; stroke-dashoffset: var(--off, 0); filter: drop-shadow(0 0 6px var(--ring)); }
.ring__num { font-size: 4.2rem; font-weight: 800; color: var(--ring); text-shadow: 0 0 1.5rem var(--ring); }
.arena__question { font-family: var(--font-math); font-size: 5.2rem; font-weight: 700; letter-spacing: 0.03em; text-align: center; line-height: 1.1; min-height: 1.2em; }
.arena__question--in { animation: q-in 0.5s var(--ease-out); }
@keyframes q-in { from { opacity: 0; transform: translateY(1.5rem) scale(0.96); filter: blur(6px); } }
.arena__hint { min-height: 1.6rem; color: var(--c-gold); font-weight: 600; font-size: 1.15rem; }
.arena__answers { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); width: 100%; max-width: 50rem; align-self: start; }
.answer {
  position: relative; min-height: 6rem; border: 0.18rem solid var(--c-accent); border-radius: 1.4rem; background: rgba(21, 31, 43, 0.9);
  font-family: var(--font-math); font-size: 2.6rem; font-weight: 700; transition: transform 0.2s var(--ease-out), background-color 0.2s, border-color 0.2s, opacity 0.3s, box-shadow 0.25s;
}
.answer:hover:not(:disabled) { transform: translateY(-0.25rem); background: rgba(255, 109, 0, 0.12); box-shadow: 0 0.8rem 2rem rgba(255, 109, 0, 0.25); }
.answer__key { position: absolute; top: 0.6rem; left: 0.9rem; font-family: var(--font); font-size: 0.8rem; color: var(--c-faint); font-weight: 600; }
.answer--correct { background: var(--c-correct); border-color: var(--c-correct); color: var(--c-ink); box-shadow: 0 0 3rem rgba(43, 213, 137, 0.6); }
.answer--wrong { background: var(--c-wrong); border-color: var(--c-wrong); }
.answer--gone { opacity: 0.15; }
.answer:disabled { cursor: default; }
.arena__powerups { display: flex; gap: var(--space-4); }
.pu-btn { position: relative; display: grid; place-items: center; width: 5.5rem; height: 5.5rem; border: 1px solid var(--c-line); border-radius: 1.6rem; background: rgba(255, 255, 255, 0.05); transition: transform 0.3s var(--ease-spring), background-color 0.2s; }
.pu-btn:hover:not(:disabled) { transform: translateY(-0.3rem) scale(1.06); background: rgba(255, 255, 255, 0.1); }
.pu-btn:disabled { opacity: 0.35; cursor: default; }
.pu-btn img { width: 3.4rem; height: 3.4rem; }
.pu-btn__count { position: absolute; top: 0.3rem; right: 0.6rem; font-weight: 800; font-size: 1.1rem; }
.arena__overlay {
  position: absolute; inset: 0; z-index: 3; display: grid; place-items: center; align-content: center; gap: var(--space-8); text-align: center; padding: var(--space-12);
  background: radial-gradient(closest-side, rgba(10, 16, 24, 0.85), rgba(10, 16, 24, 0.97)); backdrop-filter: blur(6px);
  transition: opacity 0.5s, visibility 0.5s;
}
.arena__overlay[hidden] { display: grid; opacity: 0; visibility: hidden; pointer-events: none; }
.arena__overlay-title { font-size: 4.5rem; font-weight: 800; line-height: 1.05; }
.arena__picker { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); max-width: 60rem; }
.arena__picker .chip { min-height: 3.2rem; padding: 0 var(--space-6); font-size: 1rem; }
.arena__keys { color: var(--c-faint); font-size: 0.95rem; }
.summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.summary .panel { min-width: 11rem; }
.float-reward { position: absolute; z-index: 4; left: 50%; top: 45%; transform: translate(-50%, -50%); pointer-events: none; font-size: 3rem; font-weight: 800; white-space: nowrap; color: var(--c-gold); text-shadow: 0 0 2rem rgba(255, 109, 0, 0.8); animation: float-up 1.2s var(--ease-out) forwards; }
.float-reward--bad { color: var(--c-wrong); text-shadow: 0 0 2rem rgba(255, 59, 47, 0.7); }
@keyframes float-up { 0% { opacity: 0; transform: translate(-50%, 0) scale(0.6); } 20% { opacity: 1; transform: translate(-50%, -60%) scale(1.1); } 100% { opacity: 0; transform: translate(-50%, -260%) scale(1); } }

/* --- Journey: medals, ladder, extras --- */
.medals { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-12); perspective: 120rem; }
.medal { display: grid; justify-items: center; gap: var(--space-4); text-align: center; }
.medal__coin { position: relative; width: 17rem; height: 17rem; transform-style: preserve-3d; animation: spin 7s linear infinite; animation-delay: calc(var(--i) * -1.2s); }
.medal:hover .medal__coin { animation-duration: 1.4s; }
.medal__face { position: absolute; inset: 0; width: 100%; backface-visibility: hidden; filter: drop-shadow(0 2rem 3rem rgba(0, 0, 0, 0.5)); }
.medal__face--back { transform: rotateY(180deg); filter: brightness(0.7) drop-shadow(0 2rem 3rem rgba(0, 0, 0, 0.5)); }
@keyframes spin { to { transform: rotateY(360deg); } }
.medal__glow { position: absolute; inset: 15%; border-radius: 50%; background: var(--glow-c); filter: blur(3rem); opacity: 0.5; transform: translateZ(-2rem); }
.medal__tier { font-size: 2.2rem; font-weight: 800; }
.medal__range { color: var(--c-muted); font-size: 1.15rem; letter-spacing: 0.1em; }

.ladder { display: grid; grid-template-columns: repeat(7, 1fr); align-items: end; gap: var(--space-3); margin-top: var(--space-24); height: 26rem; }
.ladder__step {
  --cat: var(--c-accent);
  display: grid; align-content: start; gap: var(--space-1); height: calc(30% + var(--i) * 11.5%); padding: var(--space-6) var(--space-4);
  border-radius: var(--radius-md) var(--radius-md) 0 0; background: linear-gradient(180deg, color-mix(in srgb, var(--cat) 40%, transparent), rgba(255, 255, 255, 0.02));
  border-top: 0.25rem solid var(--cat); transform-origin: bottom; transform: scaleY(0); transition: transform 1s var(--ease-out); transition-delay: calc(var(--i) * 0.12s);
}
.ladder.is-in .ladder__step { transform: scaleY(1); }
.ladder__school { font-size: 1.35rem; font-weight: 800; line-height: 1.15; }
.ladder__cat { color: var(--c-muted); font-size: 0.85rem; }

.extras { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8); margin-top: var(--space-24); }
.card__art { height: 12rem; display: grid; place-items: center; transform: translateZ(3rem); }
.chest { width: 11rem; padding: 0; border: 0; background: none; animation: bob 2.4s ease-in-out infinite; filter: drop-shadow(0 1.5rem 2rem rgba(0, 0, 0, 0.5)); }
.chest img { width: 100%; }
.chest:hover { animation-duration: 0.6s; }
@keyframes bob { 50% { transform: translateY(-0.9rem) rotate(-3deg); } }
.gifts { display: grid; grid-template-columns: repeat(3, 3.6rem); gap: 0.5rem; perspective: 30rem; }
.gift { position: relative; width: 3.6rem; height: 3.6rem; padding: 0; border: 0; background: none; transform-style: preserve-3d; transition: transform 0.7s var(--ease-out); }
.gift--open { transform: rotateY(180deg); }
.gift__face { position: absolute; inset: 0; display: grid; place-items: center; border-radius: 0.8rem; backface-visibility: hidden; font-size: 0.75rem; font-weight: 800; line-height: 1.1; }
.gift__face--front { background: linear-gradient(135deg, var(--c-accent-hot), var(--c-accent)); color: var(--c-ink); font-size: 1.4rem; }
.gift__face--back { background: var(--c-cream); color: var(--c-ink); transform: rotateY(180deg); padding: 0.2rem; text-align: center; }
.lives { display: flex; gap: var(--space-2); }
.lives .heart:last-child { position: relative; animation: refill 3s ease-in-out infinite; }
@keyframes refill { 0%, 30% { opacity: 0.25; filter: grayscale(1); transform: scale(0.8); } 60%, 100% { opacity: 1; filter: none; transform: scale(1); } }
.lives__clock { font-size: 2.6rem; font-weight: 800; color: var(--c-text); }

/* --- Power-ups --- */
.pus { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-8); }
.pu-card { text-align: center; justify-items: center; }
.pu-card__img { width: 10rem; height: 10rem; transform: translateZ(4rem); filter: drop-shadow(0 1.5rem 2rem rgba(0, 0, 0, 0.5)); transition: transform 0.5s var(--ease-spring); }
.pu-card:hover .pu-card__img { transform: translateZ(5rem) scale(1.1) rotate(-6deg); }
.pu-card__cost { display: inline-flex; gap: var(--space-2); padding: var(--space-1) var(--space-4); border-radius: var(--radius-pill); background: rgba(255, 195, 90, 0.12); color: var(--c-gold); font-weight: 800; }

/* --- Screens carousel --- */
.carousel { position: relative; height: 42rem; perspective: 110rem; touch-action: pan-y; user-select: none; }
.carousel__ring { position: absolute; left: 50%; top: 50%; width: 0; height: 0; transform-style: preserve-3d; transform: rotateX(-4deg) rotateY(var(--angle, 0deg)); }
.phone {
  position: absolute; left: -7.5rem; top: -16rem; width: 15rem; height: 31.3rem; padding: 0.5rem; border-radius: 2.2rem;
  background: linear-gradient(145deg, #2a3646, #0d131b); border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 0 0 0.15rem rgba(0, 0, 0, 0.6), 0 3rem 5rem rgba(0, 0, 0, 0.5), 0 0 4rem rgba(255, 109, 0, 0.12);
  transform: rotateY(calc(var(--i) * 72deg)) translateZ(12.5rem); backface-visibility: hidden;
}
.phone__screen { width: 100%; height: 100%; object-fit: cover; border-radius: 1.75rem; }
.phone__label { position: absolute; left: 0; right: 0; bottom: -2.75rem; text-align: center; color: var(--c-muted); font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; font-size: 0.9rem; }
.carousel__hint { text-align: center; color: var(--c-faint); letter-spacing: 0.3em; text-transform: uppercase; font-size: 0.8rem; margin-top: var(--space-8); }

/* --- Trust tiles --- */
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.tile__icon { font-size: 2.4rem; line-height: 1; }

/* --- CTA --- */
.cta { min-height: 100vh; display: grid; place-items: center; text-align: center; }
.cta__inner { display: grid; justify-items: center; gap: var(--space-8); }
.cta__art { width: 30rem; height: 30rem; }
.cta__title { font-size: 8rem; font-weight: 800; line-height: 0.95; letter-spacing: -0.02em; }
.stores { display: flex; gap: var(--space-6); }
.store { position: relative; display: grid; place-items: center; padding: var(--space-3) var(--space-6); border: 1px solid var(--c-line-strong); border-radius: var(--radius-md); background: rgba(0, 0, 0, 0.5); transition: transform 0.3s var(--ease-spring), border-color 0.3s; }
.store:hover { transform: translateY(-0.3rem); border-color: var(--c-accent); }
.store img { height: 3.6rem; width: auto; }
.store__ribbon { position: absolute; top: -0.9rem; right: -0.9rem; padding: 0.2rem 0.7rem; border-radius: var(--radius-pill); background: var(--c-accent); color: var(--c-ink); font-size: 0.75rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; box-shadow: var(--glow); }

/* ============================================================
   Media queries
   ============================================================ */
@media (max-width: 1100px) {
  .pitch__sticky, .timer__sticky, .cats__grid, .arena { grid-template-columns: 1fr; }
  .pitch__art { display: none; }
  .timer__sticky { justify-items: center; gap: var(--space-6); }
  .timer__dial { width: 22rem; }
  .timer__num { font-size: 8rem; }
  .timer__copy .lead, .timer__mult { display: none; }
  .wheel { --size: min(46rem, 90vw); justify-self: center; }
  .medals, .extras, .pus, .tiles { grid-template-columns: 1fr; }
  .ladder { grid-template-columns: repeat(7, minmax(6rem, 1fr)); overflow-x: auto; }
  .pitch__line { font-size: 5rem; }
  .cta__title { font-size: 5rem; }
  .hero__title { font-size: 6rem; }
  .hero__stats { gap: var(--space-6); flex-wrap: wrap; justify-content: center; }
  .summary { grid-template-columns: repeat(2, 1fr); }
}
/* Phones: nothing may be wider than the screen (mobile browsers zoom the page out otherwise). */
@media (max-width: 640px) {
  .main { overflow-x: clip; }
  .nav { gap: var(--space-3); }
  .nav__tools .btn--sm { display: none; }
  .btn--xl { min-height: 4rem; padding: 0 var(--space-6); font-size: 1.2rem; white-space: normal; text-align: center; }
  .gate__inner { width: 100%; padding-inline: var(--space-6); }
  .gate__logo { width: 6rem; height: 7.2rem; }
  .gate__word { font-size: 3.2rem; letter-spacing: 0.18em; margin-right: -0.18em; }
  .gate__sub { letter-spacing: 0.5em; margin-right: -0.5em; }
  .gate__meter { width: min(24rem, 70vw); }
  .gate__actions { flex-direction: column; align-self: stretch; }
  .hero { padding-top: 6rem; grid-template-columns: minmax(0, 1fr); }
  .hero__body { padding-inline: var(--space-4); }
  .hero__eyebrow { letter-spacing: 0.5em; margin-right: -0.5em; }
  .hero__tagline { font-size: 2.8rem; }
  .hero__lead { font-size: 1.2rem; }
  .hero__actions { flex-direction: column; align-self: stretch; }
  .hero__stats { gap: var(--space-4) var(--space-8); }
  .stat__num { font-size: 2.8rem; }
  .hero__hint { display: none; }
  .marquee__track { font-size: 2rem; }
  .pitch__line { font-size: 4rem; }
  .timer__dial { width: 18rem; }
  .timer__num { font-size: 6.5rem; }
  .wheel { --size: min(46rem, 100vw - var(--space-12)); }
  .wheel__node { width: 6.5rem; }
  .wheel__icon { width: 3.8rem; height: 3.8rem; border-radius: 1rem; font-size: 1.4rem; }
  .wheel__icon svg { width: 1.9rem; height: 1.9rem; }
  .wheel__name { font-size: 0.8rem; }
  .wheel__compass { width: 6rem; height: 7.2rem; }
  .wheel__start { font-size: 1.2rem; }
  .cat-panel { padding: var(--space-8) var(--space-6); }
  .cat-panel__id { font-size: 4.5rem; }
  .cat-panel__name { font-size: 2.2rem; }
  .cat-panel__q { font-size: 2.4rem; }
  .cat-panel__facts { grid-template-columns: 1fr; }
  .climb__bars { gap: var(--space-2); }
  .climb__title { letter-spacing: 0.12em; }
  .climb__label { font-size: 0.85rem; }
  .climb__label small { display: none; }
  .arena { padding: var(--space-4); gap: var(--space-4); border-radius: var(--radius-lg); }
  .arena__question { font-size: 3.6rem; }
  .answer { min-height: 5rem; font-size: 2rem; }
  .pu-btn { width: 4.6rem; height: 4.6rem; }
  .arena__overlay { padding: var(--space-6); }
  .arena__overlay-title { font-size: 3rem; }
  .medal__coin { width: 13rem; height: 13rem; }
  .cta__art { width: 18rem; height: 18rem; }
  .cta__title { font-size: 4rem; }
  .stores { flex-direction: column; }
  .screens { overflow: hidden; }
}