/* Strider657's Milkshake Mania — homepage
   Single accent (blue) on a deep dark base, with an optional light theme.
   Sizing is in rem so the whole page scales with the user's font size.
   "Gamey" pass: same theme, same classes, same HTML — just more arcade juice.
   Everything added reuses existing tokens, so the palette never changes. */

:root {
  --bg: #0f1115;
  --bg-alt: #0b0d11;
  --card: #161a21;
  --text: #eef1f4;
  --muted: #9aa3ad;
  --line: rgba(255, 255, 255, 0.08);
  --accent: #4f8cff;
  --accent-2: #6fbfff;
  --grad: linear-gradient(90deg, var(--accent-2), var(--accent));
  --radius: 0.9rem;
  --maxw: 67.5rem;
  --shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.4);
  --gap: 1.5rem;
  /* gamey helpers (derived from the accent, so theme stays intact) */
  --glow: 0 0 0.75rem rgba(79, 140, 255, 0.55), 0 0 1.5rem rgba(111, 191, 255, 0.35);
  --glow-strong: 0 0 1rem rgba(79, 140, 255, 0.7), 0 0 2.25rem rgba(111, 191, 255, 0.45);
}

.theme-light {
  --bg: #f6f8fb;
  --bg-alt: #eef2f7;
  --card: #ffffff;
  --text: #0b1220;
  --muted: #5b6b7a;
  --line: rgba(0, 0, 0, 0.1);
  --shadow: 0 1rem 2.5rem rgba(20, 40, 80, 0.12);
  --glow: 0 0 0.75rem rgba(79, 140, 255, 0.3), 0 0 1.5rem rgba(111, 191, 255, 0.2);
  --glow-strong: 0 0 1rem rgba(79, 140, 255, 0.4), 0 0 2.25rem rgba(111, 191, 255, 0.25);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family:
    "Segoe UI",
    system-ui,
    -apple-system,
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition:
    background 0.25s ease,
    color 0.25s ease;
}

/* Subtle animated arcade grid behind everything — sits under all content,
   never intercepts clicks, and fades into the dark base so it stays quiet. */
body::before {
  content: "";
  position: fixed;
  inset: -20%;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(color-mix(in srgb, var(--accent) 9%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 9%, transparent) 1px, transparent 1px);
  background-size: 2.5rem 2.5rem;
  mask-image: radial-gradient(circle at 50% 25%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 50% 25%, #000 0%, transparent 70%);
  animation: grid-drift 24s linear infinite;
  opacity: 0.7;
}
@keyframes grid-drift {
  to {
    background-position: 2.5rem 2.5rem, 2.5rem 2.5rem;
  }
}

a {
  color: var(--accent-2);
  text-decoration: none;
}
h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Lucide icons sit inline with text at a sensible scale. */
.lucide {
  width: 1.1em;
  height: 1.1em;
  vertical-align: -0.18em;
  stroke-width: 2;
  flex: 0 0 auto;
}

/* ── Buttons & icon button ────────────────────────────────────────────── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  overflow: hidden;
  transition:
    transform 0.12s cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow 0.2s ease,
    background 0.2s ease;
}
.btn:hover {
  transform: translateY(-0.18rem) scale(1.03);
}
.btn:active {
  transform: translateY(0.05rem) scale(0.97);
}
/* Sheen sweep on hover — like a button charging up in a game UI. */
.btn::after {
  content: "";
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    100deg,
    transparent,
    rgba(255, 255, 255, 0.35),
    transparent
  );
  transform: skewX(-18deg);
  transition: left 0.5s ease;
  pointer-events: none;
}
.btn:hover::after {
  left: 140%;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0.625rem 1.5rem rgba(79, 140, 255, 0.35);
}
.btn--primary:hover {
  box-shadow:
    0 0.875rem 1.875rem rgba(79, 140, 255, 0.5),
    var(--glow);
  color: #fff;
}
.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}
.btn--ghost:hover {
  background: rgba(127, 127, 127, 0.1);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  box-shadow: var(--glow);
}
.btn--sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.95rem;
}
.btn--lg {
  padding: 1.05rem 2.25rem;
  font-size: 1.12rem;
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border: 0;
  border-radius: 0.6rem;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition:
    color 0.15s ease,
    background 0.15s ease,
    box-shadow 0.15s ease;
}
.icon-btn:hover {
  color: var(--text);
  background: rgba(127, 127, 127, 0.12);
  box-shadow: var(--glow);
}
.icon-btn .lucide {
  width: 1.25rem;
  height: 1.25rem;
}

/* ── Navbar ───────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem clamp(1rem, 5vw, 3rem);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(0.6rem);
  border-bottom: 1px solid var(--line);
}
/* Animated accent underline on the nav — a thin "energy bar" running across. */
.nav::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-2),
    var(--accent),
    transparent
  );
  background-size: 200% 100%;
  opacity: 0.6;
  animation: bar-slide 6s linear infinite;
}
@keyframes bar-slide {
  to {
    background-position: 200% 0;
  }
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  color: var(--text);
}
.nav__logo {
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 0.5rem;
  object-fit: contain;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2.5vw, 1.6rem);
}
.nav__links > a {
  position: relative;
  color: var(--muted);
  font-weight: 600;
  transition: color 0.15s ease;
}
.nav__links > a:hover {
  color: var(--text);
}
/* Underline grows from the center on hover, like a selected menu entry. */
.nav__links > a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -0.35rem;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--grad);
  transform: translateX(-50%);
  transition: width 0.2s ease;
}
.nav__links > a:hover::after {
  width: 100%;
}

/* ── Shared section scaffolding ───────────────────────────────────────── */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 6rem) clamp(1rem, 5vw, 3rem);
}
.section--alt {
  max-width: none;
  background: var(--bg-alt);
  border-block: 1px solid var(--line);
}
.section--alt > * {
  max-width: var(--maxw);
  margin-inline: auto;
}
.section__title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  text-align: center;
}
.section__lead {
  text-align: center;
  color: var(--muted);
  margin-top: 0.6rem;
}
.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-2);
}
.lead {
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
}
.row {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

/* ── Hero ─────────────────────────────────────────────────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 6.5rem) clamp(1rem, 5vw, 3rem);
}
.hero__title {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  margin: 0.9rem 0;
}
/* The gradient title slowly shifts its accent — a gentle neon shimmer. */
.hero__title .grad {
  background: linear-gradient(
    90deg,
    var(--accent-2),
    var(--accent),
    var(--accent-2)
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: title-shimmer 8s ease-in-out infinite;
}
@keyframes title-shimmer {
  50% {
    background-position: 100% 0;
  }
}
.hero__copy .lead {
  max-width: 38ch;
  margin-bottom: 1.8rem;
}
.badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  margin-top: 1.8rem;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.92rem;
}
.badges li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.badges .lucide {
  color: var(--accent-2);
}

/* CSS-only milkshake preview */
.preview {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 1.6rem;
  padding: 2.25rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  box-shadow: var(--shadow);
}
/* Faint rotating conic glow behind the cup — feels like a "now playing" ring. */
.preview::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    var(--accent-2) 90deg,
    var(--accent) 180deg,
    transparent 280deg
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.5;
  animation: ring-spin 9s linear infinite;
  pointer-events: none;
}
@keyframes ring-spin {
  to {
    transform: rotate(360deg);
  }
}
.cup {
  position: relative;
  width: 8rem;
  height: 9.9rem;
  background: rgba(127, 127, 127, 0.1);
  border: 0.125rem solid var(--line);
  border-radius: 0.9rem 0.9rem 2.75rem 2.75rem / 0.9rem 0.9rem 3.75rem 3.75rem;
  overflow: hidden;
  animation: bob 4s ease-in-out infinite;
}
.cup__shake {
  position: absolute;
  inset: 30% 0 0;
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  border-radius: 40% 40% 0 0;
}
/* A drifting highlight band on the shake liquid — subtle "filling" motion. */
.cup__shake::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.28),
    transparent 45%
  );
  mix-blend-mode: overlay;
  animation: shake-slosh 3.5s ease-in-out infinite;
}
@keyframes shake-slosh {
  50% {
    transform: translateY(0.4rem) scaleY(1.05);
  }
}
.cup__straw {
  position: absolute;
  top: -1.25rem;
  left: 58%;
  width: 0.7rem;
  height: 5.4rem;
  background: var(--accent-2);
  border-radius: 0.4rem;
  transform: rotate(12deg);
}
.cup__icon {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 2.875rem;
  height: 2.875rem;
  color: #fff;
  filter: drop-shadow(0 0.2rem 0.4rem rgba(0, 0, 0, 0.4));
}
.preview__stats {
  display: flex;
  gap: 1.5rem;
  text-align: center;
}
.preview__stats div {
  display: grid;
}
.preview__stats b {
  font-size: 1.3rem;
}
.preview__stats small {
  color: var(--muted);
  font-size: 0.75rem;
}
@keyframes bob {
  50% {
    transform: translateY(-0.625rem);
  }
}

/* ── Cards (features + tips) — multiple per line, fluid ───────────────── */
.cards {
  margin-top: 2.75rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--gap);
}
.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  overflow: hidden;
  transition:
    transform 0.18s cubic-bezier(0.34, 1.56, 0.64, 1),
    border-color 0.18s ease,
    box-shadow 0.18s ease;
  text-align: justify;
}
/* A top accent rail that lights up on hover, like a selected quest card. */
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.card:hover {
  transform: translateY(-0.45rem) scale(1.015);
  border-color: var(--accent);
  box-shadow: var(--shadow), var(--glow);
}
.card:hover::before {
  transform: scaleX(1);
}
.card__icon {
  display: inline-grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent-2);
  margin-bottom: 0.9rem;
  transition:
    transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow 0.2s ease;
}
.card:hover .card__icon {
  transform: translateY(-0.15rem) rotate(-6deg) scale(1.08);
  box-shadow: var(--glow);
}
.card__icon .lucide {
  width: 1.5rem;
  height: 1.5rem;
}
.card h2 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}
.card h3 {
  font-size: 1.18rem;
  margin-bottom: 0.4rem;
}
.card h4 {
  font-size: 0.95rem;
  margin: 0.75rem 0 0.3rem;
  color: var(--accent-2);
}
.card p {
  color: var(--muted);
  font-size: 0.96rem;
}
.card p + p {
  margin-top: 0.6rem;
}
.card ol,
.card ul {
  margin: 0.3rem 0 0 1.1rem;
  color: var(--muted);
  font-size: 0.96rem;
}
.card li {
  margin: 0.25rem 0;
}
.card strong {
  color: var(--text);
}

/* ── FAQ (native accordion) ───────────────────────────────────────────── */
.faq {
  max-width: var(--maxw);
  margin: 2.5rem auto 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  align-items: start; /* an opened item grows its own height, not the row's siblings */
  gap: 0.9rem;
  text-align: justify;
}
.faq__item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}
.faq__item summary::-webkit-details-marker {
  display: none;
}
.faq__item summary .lucide {
  color: var(--accent-2);
  transition: transform 0.25s ease;
}
/* Chevron rotation: native [open] without JS, .open class once JS is active. */
html:not(.js) .faq__item[open] summary .lucide,
.js .faq__item.is-open summary .lucide {
  transform: rotate(180deg);
}
.faq__item {
  position: relative; /* anchor for the floating answer panel */
}
.faq__item p {
  padding: 0 1.25rem 1.1rem;
  color: var(--muted);
}
/* The answer is a floating dropdown panel (JS wraps it in .faq__content): it
   overlays the content below instead of pushing rows down. */
.faq__content {
  position: absolute;
  top: calc(100% + 0.4rem);
  left: 0;
  right: 0;
  z-index: 5;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding-top: 0.9rem;
  opacity: 0;
  transform: translateY(-0.5rem);
  pointer-events: none;
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}
.faq__content p {
  color: var(--muted);
}
.faq__item.is-open {
  z-index: 30; /* lift the open item (and its panel) above its neighbors */
}
.faq__item.is-open .faq__content {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

/* ── About ────────────────────────────────────────────────────────────── */
.about__lead {
  max-width: 45rem;
  margin: 1.75rem auto 0;
  text-align: center;
  color: var(--muted);
  font-size: 1.08rem;
}
.about__lead b {
  color: var(--text);
}
.credits {
  margin-top: 1.75rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12.5rem, 1fr));
  gap: 1rem;
}
.credit {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  display: grid;
  gap: 0.25rem;
}
.credit b {
  color: var(--accent-2);
}
.credit small {
  color: var(--muted);
}

/* ── Final CTA + footer ───────────────────────────────────────────────── */
.cta {
  text-align: center;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 6.5rem) clamp(1rem, 5vw, 3rem);
}
.cta h2 {
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 800;
}
.cta p {
  color: var(--muted);
  margin: 0.75rem 0 1.6rem;
  font-size: 1.08rem;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 1.75rem clamp(1rem, 5vw, 3rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
}
.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  color: var(--text);
}
.footer__links {
  display: flex;
  gap: 1.4rem;
}
.footer__links a {
  color: var(--muted);
  font-weight: 600;
}
.footer__links a:hover {
  color: var(--text);
}
.footer__legal {
  width: 100%;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* ── Hover polish (everything lifts/responds a touch) ─────────────────── */
.nav__brand {
  transition: transform 0.15s ease;
}
.nav__brand:hover {
  transform: translateY(-0.1rem);
}
.nav__logo {
  transition: transform 0.25s ease;
}
.nav__brand:hover .nav__logo {
  transform: rotate(-7deg) scale(1.08);
  box-shadow: var(--glow);
}

.nav__links > a,
.footer__links a {
  transition:
    color 0.15s ease,
    transform 0.15s ease;
}
.nav__links > a:hover,
.footer__links a:hover {
  transform: translateY(-0.1rem);
}

.badges li {
  transition:
    color 0.15s ease,
    transform 0.15s ease;
}
.badges li:hover {
  color: var(--text);
  transform: translateY(-0.1rem);
}
.badges li:hover .lucide {
  filter: drop-shadow(0 0 0.35rem color-mix(in srgb, var(--accent-2) 70%, transparent));
}

.preview {
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}
.preview:hover {
  transform: translateY(-0.35rem);
  box-shadow: 0 1.4rem 3rem rgba(0, 0, 0, 0.5), var(--glow);
}

.credit {
  position: relative;
  overflow: hidden;
  transition:
    transform 0.18s cubic-bezier(0.34, 1.56, 0.64, 1),
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}
.credit:hover {
  transform: translateY(-0.35rem) scale(1.02);
  border-color: var(--accent);
  box-shadow: var(--shadow), var(--glow);
}

.faq__item {
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.faq__item:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  box-shadow: var(--glow);
}
.faq__item summary {
  transition: color 0.15s ease;
}
.faq__item summary:hover {
  color: var(--accent-2);
}

.icon-btn .lucide,
.btn .lucide {
  transition: transform 0.2s ease;
}
.btn:hover .lucide {
  transform: scale(1.12) rotate(-6deg);
}
.icon-btn:hover .lucide {
  transform: rotate(-12deg) scale(1.1);
}

/* ── Motion: gentle page fade-in (progressive enhancement) ────────────── */
@view-transition {
  navigation: auto;
}
main {
  animation: fade-in 0.5s ease both;
}
@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(0.5rem);
  }
}

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 53.75rem) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero__copy .lead {
    margin-inline: auto;
  }
  .row,
  .badges {
    justify-content: center;
  }
  .preview {
    order: -1;
  }
}
@media (max-width: 35rem) {
  .preview__stats {
    flex-direction: column;
    gap: 0.75rem;
  }
}

/* ── Version pill (live latest release) ───────────────────────────────── */
.version-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 600;
  transition:
    border-color 0.15s ease,
    transform 0.15s ease,
    box-shadow 0.15s ease;
}
.version-pill:hover {
  border-color: var(--accent);
  transform: translateY(-0.1rem);
  box-shadow: var(--glow);
}
.version-pill[hidden] {
  display: none;
}
.version-pill__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-2) 70%, transparent);
  animation: pulse 2s ease-out infinite;
}
.version-pill .lucide {
  width: 0.95rem;
  height: 0.95rem;
  color: var(--accent-2);
}
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-2) 60%, transparent);
  }
  100% {
    box-shadow: 0 0 0 0.5rem transparent;
  }
}

/* ── Interactive blend demo ───────────────────────────────────────────── */
.cup--btn {
  appearance: none;
  -webkit-appearance: none;
  font: inherit;
  cursor: pointer;
  padding: 0;
  outline: none;
}
.cup--btn:focus-visible {
  box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--accent) 55%, transparent), var(--glow);
}
.cup--btn:hover {
  filter: drop-shadow(0 0 0.6rem color-mix(in srgb, var(--accent-2) 55%, transparent));
}
.cup--btn.blend {
  animation: blend-pop 0.32s ease;
}
@keyframes blend-pop {
  30% {
    transform: scale(0.94) rotate(-2deg);
  }
  60% {
    transform: scale(1.04) rotate(1.5deg);
  }
}
.cup__pops {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.cup__pops .pop {
  position: absolute;
  left: 50%;
  top: 30%;
  transform: translateX(-50%);
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--accent-2);
  text-shadow: 0 0.1rem 0.3rem rgba(0, 0, 0, 0.5);
  animation: pop-up 0.7s ease-out forwards;
}
@keyframes pop-up {
  to {
    transform: translate(-50%, -2.5rem);
    opacity: 0;
  }
}
.preview__hint {
  color: var(--muted);
  font-size: 0.85rem;
}

/* ── Scroll reveal ────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ── Gameplay carousel ────────────────────────────────────────────────── */
.carousel {
  position: relative;
  margin-top: 2.5rem;
}
.carousel__track {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
  border-radius: var(--radius);
}
.carousel__track::-webkit-scrollbar {
  display: none;
}
.slide {
  position: relative;
  flex: 0 0 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-alt);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.slide:hover {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  box-shadow: var(--glow);
}
@media (min-width: 48rem) {
  .slide {
    flex-basis: calc(50% - 0.5rem);
  }
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* Tidy placeholder until real screenshots are dropped into /assets. */
.slide[data-missing] img {
  display: none;
}
.slide[data-missing]::after {
  content: "Screenshot coming soon";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0.9rem;
}
.carousel__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(0.4rem);
  color: var(--text);
  cursor: pointer;
  transition:
    background 0.15s ease,
    transform 0.15s ease,
    box-shadow 0.15s ease;
}
.carousel__nav:hover {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--glow);
}
.carousel__nav--prev {
  left: -0.6rem;
}
.carousel__nav--next {
  right: -0.6rem;
}
.carousel__dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
}
.carousel__dots button {
  width: 0.55rem;
  height: 0.55rem;
  border: 0;
  border-radius: 50%;
  background: var(--line);
  cursor: pointer;
  transition:
    background 0.15s ease,
    transform 0.15s ease,
    box-shadow 0.15s ease;
}
.carousel__dots button.is-active {
  background: var(--accent);
  transform: scale(1.3);
  box-shadow: var(--glow);
}

/* ── Navbar: actions + mobile hamburger menu ──────────────────────────── */
.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.nav__burger {
  display: none;
}
@media (max-width: 48rem) {
  .nav__burger {
    display: inline-grid;
  }
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    padding: 0.5rem clamp(1rem, 5vw, 3rem) 1rem;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    display: none;
  }
  .nav.is-open .nav__links {
    display: flex;
  }
  .nav__links > a {
    padding: 0.65rem 0.25rem;
  }
  /* underline grows from the left on the stacked mobile menu */
  .nav__links > a::after {
    left: 0.25rem;
    transform: none;
  }
}

/* ── Back-to-top ──────────────────────────────────────────────────────── */
.to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 60;
  display: grid;
  place-items: center;
  width: 2.8rem;
  height: 2.8rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  opacity: 0;
  transform: translateY(0.6rem);
  pointer-events: none;
  transition:
    opacity 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
  box-shadow: 0 0.6rem 1.5rem rgba(79, 140, 255, 0.4);
}
.to-top.show {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.to-top:hover {
  transform: translateY(-0.15rem) scale(1.06);
  box-shadow: 0 0.6rem 1.5rem rgba(79, 140, 255, 0.4), var(--glow-strong);
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  /* kill the ambient gamey loops for motion-sensitive visitors */
  body::before,
  .nav::after,
  .hero__title .grad,
  .preview::before,
  .cup__shake::after {
    animation: none !important;
  }
}