/* Landing page: scroll-driven sections + live app mockup. Tokens come from base.css. */

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}
body {
  overflow-x: clip;
  font-size: 15px;
}
section {
  position: relative;
  z-index: 1;
}
h1,
h2,
h3 {
  margin: 0;
  letter-spacing: -0.03em;
}
h2 {
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1.05;
  font-weight: 800;
}
.grad-text {
  background: linear-gradient(100deg, var(--cyan), #a78bfa 45%, var(--pink) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 550;
  letter-spacing: 0.02em;
}
.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pink);
  box-shadow: 0 0 0 0 rgba(254, 44, 85, 0.6);
  animation: ping 1.8s ease-out infinite;
}
@keyframes ping {
  70%,
  100% {
    box-shadow: 0 0 0 8px rgba(254, 44, 85, 0);
  }
}
.sec-head {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 56px;
}
.btn .ico,
.ghost .ico {
  width: 18px;
  height: 18px;
}
.btn.sm {
  height: 38px;
  padding: 0 14px;
  border-radius: 11px;
  font-size: 13.5px;
}
.ghost.lg {
  height: 54px;
  padding: 0 22px;
  border-radius: 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}
.btn.off {
  opacity: 0.55;
  pointer-events: none;
}
.mark.xs {
  width: 16px;
  height: 16px;
  border-radius: 5px;
}
.meta {
  margin: 14px 0 0;
  color: var(--faint);
  font-size: 13px;
}

/* ── reveal on scroll ── */
.rv {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(8px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease), filter 0.9s var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.rv.in {
  opacity: 1;
  transform: none;
  filter: none;
}

/* ── top progress + nav ── */
.progress {
  position: fixed;
  z-index: 60;
  inset: 0 0 auto;
  height: 2px;
  pointer-events: none;
}
.progress span {
  display: block;
  height: 100%;
  background: var(--grad);
  transform-origin: 0 50%;
  transform: scaleX(var(--sp, 0));
}
.nav {
  position: fixed;
  z-index: 50;
  top: 12px;
  left: 50%;
  translate: -50% 0;
  width: min(1120px, calc(100% - 24px));
  height: 56px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 10px 0 16px;
  border-radius: 18px;
  border: 1px solid transparent;
  transition: background 0.4s, border-color 0.4s, backdrop-filter 0.4s, box-shadow 0.4s;
}
.nav.solid {
  background: rgba(12, 12, 20, 0.66);
  border-color: var(--line);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  box-shadow: 0 12px 40px -16px rgba(0, 0, 0, 0.7);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 16px;
  letter-spacing: -0.02em;
}
.links {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.links a {
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s, background 0.2s;
}
.links a:hover {
  color: var(--text);
  background: var(--hover);
}

/* ── hero ── */
.hero {
  padding: 150px 16px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero-copy {
  width: 100%;
  max-width: 820px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero h1 {
  margin-top: 22px;
  font-size: clamp(40px, 7.4vw, 84px);
  line-height: 1;
  font-weight: 850;
  letter-spacing: -0.045em;
}
.tagline {
  margin: 22px 0 32px;
  max-width: 600px;
  color: var(--muted);
  font-size: clamp(15.5px, 1.6vw, 18px);
  line-height: 1.55;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.hero-shot {
  --p: 0;
  position: relative;
  width: min(1180px, 100%);
  margin-top: 64px;
  perspective: 1800px;
}
.hero-shot .mock-slot {
  transform-origin: 50% 0;
  transform: rotateX(calc((1 - var(--p)) * 26deg)) scale(calc(0.86 + var(--p) * 0.14));
  will-change: transform;
}
.halo {
  position: absolute;
  inset: 8% 4% -6%;
  border-radius: 40px;
  background: conic-gradient(from var(--ang), var(--cyan), var(--violet), var(--pink), var(--cyan));
  filter: blur(80px);
  opacity: calc(0.22 + var(--p) * 0.3);
  animation: halo-spin 12s linear infinite;
}
@keyframes halo-spin {
  to {
    --ang: 360deg;
  }
}
.float-card {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px 12px 12px;
  border-radius: 16px;
  background: rgba(16, 16, 26, 0.72);
  opacity: var(--p);
  transition: opacity 0.2s linear;
}
.float-card b {
  display: block;
  font-size: 15px;
}
.float-card span:not(.fc-ico) {
  color: var(--muted);
  font-size: 12.5px;
}
.fc-ico {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(37, 244, 238, 0.14);
  color: var(--cyan);
}
.fc-ico.violet {
  background: rgba(139, 92, 246, 0.18);
  color: #a78bfa;
}
.fc-ico.pink {
  background: rgba(254, 44, 85, 0.16);
  color: var(--pink);
}
.fc1 {
  left: -3%;
  top: 18%;
  transform: translateY(calc((1 - var(--p)) * 90px));
}
.fc2 {
  right: -3%;
  top: 34%;
  transform: translateY(calc((1 - var(--p)) * 140px));
}
.fc3 {
  left: 6%;
  bottom: -4%;
  transform: translateY(calc((1 - var(--p)) * 200px));
}

/* ── marquee ── */
.marquee {
  position: relative;
  z-index: 1;
  margin: 70px 0 0;
  padding: 18px 0;
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 28px;
  width: max-content;
  animation: marquee 38s linear infinite;
}
.marquee-track span {
  font-size: 17px;
  font-weight: 650;
  color: var(--muted);
  white-space: nowrap;
}
.marquee-track i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grad);
}
@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

/* ── speed (pinned) ── */
.speed {
  --p: 0;
  height: 260vh;
}
.speed-pin {
  position: sticky;
  top: 0;
  height: 100vh;
  min-height: 560px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 16px 24px;
}
.speed h2 {
  max-width: 820px;
}
.sub {
  margin: 18px 0 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 16.5px;
  line-height: 1.55;
}
.gauge {
  margin-top: 34px;
}
.gauge-num {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  font-variant-numeric: tabular-nums;
}
.gauge-num b {
  font-size: clamp(72px, 14vw, 150px);
  line-height: 1;
  font-weight: 850;
  letter-spacing: -0.06em;
  background: linear-gradient(180deg, #fff, rgba(255, 255, 255, 0.55));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  transition: filter 0.3s;
}
.speed.fast .gauge-num b {
  background-image: linear-gradient(120deg, var(--cyan), #a78bfa);
  filter: drop-shadow(0 0 40px rgba(37, 244, 238, 0.35));
}
.gauge-num span {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  color: var(--muted);
}
.gauge-label {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.02em;
}
.lanes {
  margin-top: 36px;
  width: min(720px, 100%);
  display: grid;
  gap: 18px;
  text-align: left;
}
.lane-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--muted);
}
.lane-head b {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.lane-head .zl {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 600;
}
.lane-track {
  height: 14px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  overflow: hidden;
}
.lane-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
}
.lane-fill.slow {
  width: calc(min(1, var(--p) * 1.8) * 100%);
  background: repeating-linear-gradient(-45deg, rgba(254, 44, 85, 0.75) 0 10px, rgba(254, 44, 85, 0.5) 10px 20px);
  animation: stripes 1s linear infinite;
}
.lane-fill.fast {
  width: calc(min(1, var(--p) * 1.8) * 3% + 6px);
  background: var(--cyan);
  box-shadow: 0 0 18px var(--cyan);
}
@keyframes stripes {
  to {
    background-position: 28px 0;
  }
}
.footnote {
  margin: 22px 0 0;
  max-width: 560px;
  color: var(--faint);
  font-size: 12.5px;
  line-height: 1.5;
}

/* ── tour ── */
.tour {
  padding: 60px 16px 40px;
}
.tour-head {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.tour-head h2 {
  max-width: 760px;
}
.tour-grid {
  width: min(1240px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(280px, 380px) 1fr;
  gap: 48px;
}
.step {
  min-height: 78vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  opacity: 0.28;
  transform: translateX(-8px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.step.on {
  opacity: 1;
  transform: none;
}
.step h3 {
  font-size: 28px;
  line-height: 1.15;
}
.step p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}
.step p b {
  color: var(--text);
  font-weight: 600;
}
.step-ico {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--grad-soft);
  border: 1px solid var(--line-strong);
  color: var(--text);
}
.step.on .step-ico {
  box-shadow: 0 0 30px -4px rgba(139, 92, 246, 0.7);
}
.tour-stick {
  position: sticky;
  top: max(88px, calc(50vh - 240px));
  align-self: start;
}
.tour-view {
  position: relative;
}
.tour-view .mock-slot {
  position: relative;
  z-index: 1;
  transform-origin: 0 0;
  transition: transform 0.9s var(--ease);
}
.desk {
  position: absolute;
  inset: 0;
  border-radius: 18px;
  overflow: hidden;
  background: linear-gradient(135deg, #10203a, #1b1036 55%, #2a0f2a);
  border: 1px solid var(--line);
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 0.7s var(--ease), transform 0.9s var(--ease);
}
.desk-win {
  position: absolute;
  left: 5%;
  top: 7%;
  width: 62%;
  height: 74%;
  border-radius: 12px;
  background: rgba(16, 18, 30, 0.9);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
}
.dw-bar {
  display: flex;
  gap: 6px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}
.dw-bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
}
.dw-lines {
  display: grid;
  gap: 10px;
  padding: 16px;
}
.dw-lines span {
  height: 8px;
  width: var(--w);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
}
.dw-lines span:nth-child(3n + 1) {
  background: rgba(37, 244, 238, 0.18);
}
.tour-view[data-state='mini'] .desk {
  opacity: 1;
  transform: none;
}
.tour-view[data-state='mini'] .mock-slot {
  transform: translate(53%, 49%) scale(0.44);
}

/* ── features (bento) ── */
.features {
  padding: 120px 16px 40px;
}
.bento {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card {
  position: relative;
  overflow: hidden;
  padding: 22px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  transition: border-color 0.3s, transform 0.9s var(--ease), opacity 0.9s var(--ease), filter 0.9s var(--ease);
  transition-delay: 0s, calc(var(--d, 0) * 90ms), calc(var(--d, 0) * 90ms), calc(var(--d, 0) * 90ms);
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgba(139, 92, 246, 0.16), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.card:hover {
  border-color: var(--line-strong);
}
.card:hover::before {
  opacity: 1;
}
.card h3 {
  margin-top: 18px;
  font-size: 19px;
}
.card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.55;
}
.c-gpu,
.c-fav,
.c-keys {
  grid-column: span 2;
}
.viz {
  position: relative;
  height: 150px;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid var(--line);
  overflow: hidden;
}
.viz-gpu {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 8px;
  padding: 18px 22px;
}
.viz-gpu span {
  flex: 1;
  max-width: 26px;
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(to top, var(--cyan), var(--violet));
  transform-origin: bottom;
  animation: gpu 1.4s ease-in-out infinite alternate;
  opacity: 0.85;
}
.viz-gpu span:nth-child(odd) {
  animation-duration: 1.1s;
}
.viz-gpu span:nth-child(3n) {
  animation-duration: 1.7s;
  animation-delay: -0.4s;
}
.viz-gpu span:nth-child(4n) {
  animation-delay: -0.9s;
}
@keyframes gpu {
  from {
    transform: scaleY(0.18);
  }
  to {
    transform: scaleY(0.92);
  }
}
.viz-amb {
  display: grid;
  place-items: center;
}
.amb-screen {
  width: 56%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  background: linear-gradient(120deg, #ff6a88, #8b5cf6, #25f4ee);
  background-size: 300% 100%;
  animation: amb 6s ease-in-out infinite alternate;
  box-shadow: 0 0 40px 12px rgba(139, 92, 246, 0.55);
}
@keyframes amb {
  0% {
    background-position: 0 0;
    box-shadow: 0 0 44px 14px rgba(255, 106, 136, 0.5);
  }
  50% {
    box-shadow: 0 0 44px 14px rgba(139, 92, 246, 0.55);
  }
  100% {
    background-position: 100% 0;
    box-shadow: 0 0 44px 14px rgba(37, 244, 238, 0.45);
  }
}
.viz-sharp > div {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.5) 0 2px, transparent 2px 9px), radial-gradient(circle at 40% 45%, #ff6a88, #8b5cf6 45%, #0b0a18 75%);
}
.viz-sharp .sh-a {
  filter: blur(2.6px) saturate(0.8);
}
.viz-sharp .sh-b {
  clip-path: inset(0 0 0 var(--cut, 50%));
  animation: cut 5s ease-in-out infinite alternate;
  filter: contrast(1.15) saturate(1.1);
}
.viz-sharp i {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--cut, 50%);
  width: 2px;
  background: #fff;
  box-shadow: 0 0 12px #fff;
  animation: cut 5s ease-in-out infinite alternate;
}
@property --cut {
  syntax: '<percentage>';
  inherits: false;
  initial-value: 50%;
}
@keyframes cut {
  from {
    --cut: 18%;
  }
  to {
    --cut: 82%;
  }
}
.viz-fav {
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 14px;
}
.fav-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  font-size: 13.5px;
  animation: fav-in 6s var(--ease) infinite;
}
.fav-row:nth-child(2) {
  animation-delay: 0.25s;
}
.fav-row:nth-child(3) {
  animation-delay: 0.5s;
}
@keyframes fav-in {
  0% {
    opacity: 0;
    transform: translateX(-12px);
  }
  8%,
  88% {
    opacity: 1;
    transform: none;
  }
  100% {
    opacity: 0;
  }
}
.fav-row b {
  font-weight: 600;
}
.fav-row em {
  margin-left: auto;
  font-style: normal;
  font-size: 12px;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.fav-row em::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}
.fav-row.off em {
  color: var(--faint);
}
.av,
.m-av {
  flex: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, hsl(var(--h) 85% 62%), hsl(calc(var(--h) + 50) 80% 48%));
}
.viz-keys {
  display: flex;
  flex-wrap: wrap;
  align-content: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
}
kbd {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  font: 600 15px var(--mono);
  color: var(--text);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
  border: 1px solid var(--line-strong);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.5);
  animation: press 4.2s ease-in-out infinite;
}
kbd:nth-child(2) { animation-delay: 0.6s; }
kbd:nth-child(3) { animation-delay: 1.2s; }
kbd:nth-child(4) { animation-delay: 1.8s; }
kbd:nth-child(5) { animation-delay: 2.4s; }
kbd:nth-child(6) { animation-delay: 3s; }
kbd:nth-child(7) { animation-delay: 3.6s; }
@keyframes press {
  0%,
  12%,
  100% {
    transform: none;
    box-shadow: 0 3px 0 rgba(0, 0, 0, 0.5);
    border-color: var(--line-strong);
  }
  5% {
    transform: translateY(3px);
    box-shadow: 0 0 0 rgba(0, 0, 0, 0.5), 0 0 22px rgba(37, 244, 238, 0.5);
    border-color: var(--cyan);
  }
}
.viz-upd {
  display: grid;
  place-items: center;
}
.viz-upd svg {
  width: 96px;
  height: 96px;
  transform: rotate(-90deg);
}
.viz-upd circle {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 6;
}
.viz-upd .ring {
  stroke: var(--cyan);
  stroke-linecap: round;
  stroke-dasharray: 201;
  stroke-dashoffset: 201;
  animation: ring 3.6s var(--ease) infinite;
  filter: drop-shadow(0 0 6px var(--cyan));
}
@keyframes ring {
  70%,
  100% {
    stroke-dashoffset: 0;
  }
}
.viz-upd > span {
  position: absolute;
  color: var(--cyan);
}
.viz-upd > span .ico {
  width: 26px;
  height: 26px;
}

/* ── numbers ── */
.numbers {
  width: min(1120px, calc(100% - 32px));
  margin: 120px auto 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.num {
  padding: 26px 20px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
}
.num b {
  display: block;
  font-size: clamp(42px, 5vw, 60px);
  line-height: 1;
  font-weight: 850;
  letter-spacing: -0.05em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(120deg, #fff, #c4b5fd);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.num span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

/* ── start ── */
.start {
  --p: 0;
  padding: 140px 16px 40px;
}
.path {
  position: relative;
  width: min(1040px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.path-line {
  position: absolute;
  left: 16%;
  right: 16%;
  top: 27px;
  height: 2px;
  background: var(--line);
}
.path-line span {
  display: block;
  height: 100%;
  background: var(--grad);
  transform-origin: 0 50%;
  transform: scaleX(clamp(0, (var(--p) - 0.25) * 1.6, 1));
  box-shadow: 0 0 14px rgba(139, 92, 246, 0.8);
}
.pstep {
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.pnum {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 800;
  background: #11111b;
  border: 1px solid var(--line-strong);
  box-shadow: 0 0 0 6px var(--bg);
}
.pstep h3 {
  margin-top: 20px;
  font-size: 19px;
}
.pstep p {
  margin: 8px 0 0;
  max-width: 280px;
  color: var(--muted);
  line-height: 1.55;
}

/* ── faq ── */
.faq {
  padding: 140px 16px 40px;
}
.qa {
  width: min(780px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 10px;
}
details {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  transition: background 0.25s, border-color 0.25s, opacity 0.9s var(--ease), transform 0.9s var(--ease), filter 0.9s var(--ease);
  transition-delay: 0s, 0s, calc(var(--d, 0) * 90ms), calc(var(--d, 0) * 90ms), calc(var(--d, 0) * 90ms);
}
details[open] {
  background: rgba(255, 255, 255, 0.045);
  border-color: var(--line-strong);
}
summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 600;
}
summary::-webkit-details-marker {
  display: none;
}
summary::after {
  content: '';
  flex: none;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg) translateY(-3px);
  transition: transform 0.3s var(--ease);
}
details[open] summary::after {
  transform: rotate(225deg) translateY(-3px);
}
details p {
  margin: 0;
  padding: 0 20px 18px;
  color: var(--muted);
  line-height: 1.65;
}

/* ── final ── */
.final {
  --p: 0;
  padding: 140px 16px 80px;
}
.final-card {
  position: relative;
  overflow: hidden;
  width: min(1040px, 100%);
  margin: 0 auto;
  padding: 72px 24px;
  border-radius: 32px;
  border: 1px solid var(--line-strong);
  background: radial-gradient(120% 120% at 50% 0%, rgba(139, 92, 246, 0.28), transparent 60%), rgba(255, 255, 255, 0.02);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(calc(0.9 + var(--p) * 0.1));
  opacity: calc(0.3 + var(--p) * 0.7);
}
.final-card h2 {
  margin: 28px 0 30px;
}

/* ── footer ── */
.foot {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 10px;
  color: var(--faint);
  font-size: 13px;
  line-height: 1.55;
}
.foot p {
  margin: 0;
  max-width: 720px;
}

/* ═════════════ App mockup (virtual 1120×640, scaled to its slot) ═════════════ */
.mock-slot {
  --s: 1;
  position: relative;
  width: 100%;
  aspect-ratio: 1120 / 640;
}
.mock-scale {
  position: absolute;
  left: 0;
  top: 0;
  width: 1120px;
  height: 640px;
  transform: scale(var(--s));
  transform-origin: 0 0;
}
.app {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  overflow: hidden;
  background: #09090f;
  border: 1px solid var(--line-strong);
  box-shadow: 0 50px 120px -30px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(0, 0, 0, 0.6);
  font-size: 13px;
  user-select: none;
}
.app .ico {
  width: 17px;
  height: 17px;
}
.app-bar {
  flex: none;
  height: 38px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding-left: 14px;
  background: #0d0d15;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.app-bar .mark {
  width: 20px;
  height: 20px;
  border-radius: 6px;
}
.app-bar-fill {
  flex: 1;
}
.wb {
  width: 44px;
  height: 38px;
  display: grid;
  place-items: center;
  color: var(--muted);
  position: relative;
}
.wb .ico {
  width: 15px;
  height: 15px;
}
.wb.min::after,
.wb.max::after,
.wb.x::before,
.wb.x::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  border: 1.2px solid var(--muted);
}
.wb.min::after {
  width: 10px;
  height: 0;
  border-width: 1.2px 0 0;
  translate: -50% 0;
}
.wb.max::after {
  width: 9px;
  height: 9px;
  border-radius: 2px;
  translate: -50% -50%;
}
.wb.x::before,
.wb.x::after {
  width: 12px;
  height: 0;
  border-width: 1.2px 0 0;
  translate: -50% 0;
  rotate: 45deg;
}
.wb.x::after {
  rotate: -45deg;
}
.app-body {
  flex: 1;
  min-height: 0;
  display: flex;
}
.stage {
  position: relative;
  flex: 1;
  overflow: hidden;
  background: #000;
}

/* the "stream": a synthwave concert scene */
.scene {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: radial-gradient(80% 70% at 50% 100%, #4a1680 0%, transparent 70%), linear-gradient(#060418, #12072a 55%, #22093a);
}
.sun {
  position: absolute;
  left: 50%;
  top: 13%;
  width: 290px;
  height: 290px;
  margin-left: -145px;
  border-radius: 50%;
  background: linear-gradient(#ffe08a, #ff6a88 55%, #b04bff);
  box-shadow: 0 0 120px 30px rgba(255, 90, 140, 0.35);
  animation: sun-pulse 0.95s ease-in-out infinite alternate;
}
.sun::after {
  content: '';
  position: absolute;
  inset: 52% 0 0;
  background: repeating-linear-gradient(transparent 0 11px, #170830 11px 17px);
}
@keyframes sun-pulse {
  to {
    box-shadow: 0 0 160px 50px rgba(255, 90, 140, 0.5);
    transform: scale(1.02);
  }
}
.beam {
  position: absolute;
  bottom: -6%;
  width: 280px;
  height: 125%;
  margin-left: -140px;
  transform-origin: 50% 100%;
  clip-path: polygon(46% 100%, 54% 100%, 100% 0, 0 0);
  mix-blend-mode: screen;
  filter: blur(5px);
  opacity: 0.38;
  animation: sweep 5s ease-in-out infinite alternate;
}
.bm1 {
  left: 18%;
  background: linear-gradient(to top, var(--cyan), transparent 82%);
}
.bm2 {
  left: 38%;
  background: linear-gradient(to top, var(--pink), transparent 82%);
  animation-duration: 3.7s;
  animation-direction: alternate-reverse;
}
.bm3 {
  left: 62%;
  background: linear-gradient(to top, #a78bfa, transparent 82%);
  animation-duration: 4.4s;
}
.bm4 {
  left: 82%;
  background: linear-gradient(to top, var(--cyan), transparent 82%);
  animation-duration: 6s;
  animation-direction: alternate-reverse;
}
@keyframes sweep {
  from {
    transform: rotate(-28deg);
  }
  to {
    transform: rotate(28deg);
  }
}
.floor {
  position: absolute;
  left: -30%;
  right: -30%;
  bottom: -18%;
  height: 60%;
  background-image: linear-gradient(rgba(255, 70, 160, 0.55) 2px, transparent 2px), linear-gradient(90deg, rgba(255, 70, 160, 0.55) 2px, transparent 2px);
  background-size: 64px 64px;
  transform: perspective(260px) rotateX(62deg);
  transform-origin: 50% 0;
  mask-image: linear-gradient(transparent, #000 40%);
  animation: floor 1.9s linear infinite;
}
@keyframes floor {
  to {
    background-position: 0 64px, 0 0;
  }
}
.eq {
  position: absolute;
  left: 50%;
  bottom: 23%;
  width: 380px;
  height: 64px;
  margin-left: -190px;
  display: flex;
  align-items: flex-end;
  gap: 5px;
}
.eq span {
  flex: 1;
  height: 100%;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(to top, var(--cyan), #a78bfa);
  transform-origin: bottom;
  animation: eqb var(--t, 0.6s) ease-in-out var(--dl, 0s) infinite alternate;
  box-shadow: 0 0 12px rgba(37, 244, 238, 0.4);
}
@keyframes eqb {
  from {
    transform: scaleY(0.1);
  }
  to {
    transform: scaleY(1);
  }
}
.crowd {
  position: absolute;
  left: -2%;
  right: -2%;
  bottom: 0;
  height: 23%;
  background: radial-gradient(circle at 50% 100%, #04020a 0 33px, transparent 34px) 0 0 / 74px 62px repeat-x,
    radial-gradient(circle at 50% 100%, #070312 0 26px, transparent 27px) 37px 16px / 74px 62px repeat-x,
    linear-gradient(transparent 52%, #04020a 52%);
  animation: bob 0.95s ease-in-out infinite alternate;
}
.crowd::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(3px 5px at 12% 38%, #cfe8ff, transparent), radial-gradient(3px 5px at 31% 22%, #cfe8ff, transparent), radial-gradient(3px 5px at 57% 34%, #cfe8ff, transparent),
    radial-gradient(3px 5px at 74% 18%, #cfe8ff, transparent), radial-gradient(3px 5px at 90% 40%, #cfe8ff, transparent);
  opacity: 0.8;
}
@keyframes bob {
  to {
    transform: translateY(-5px);
  }
}
.grain {
  position: absolute;
  inset: 0;
  opacity: 0.13;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* overlays */
.top {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 14px;
  background: linear-gradient(rgba(0, 0, 0, 0.55), transparent);
}
.streamer {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px 6px 6px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.streamer .m-av {
  width: 36px;
  height: 36px;
  font-size: 15px;
  box-shadow: 0 0 0 2px #000, 0 0 0 4px var(--pink);
}
.streamer b {
  display: block;
  font-size: 14px;
}
.streamer div span {
  color: var(--muted);
  font-size: 12px;
}
.ib {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.85);
  transition: box-shadow 0.4s, background 0.4s, color 0.4s;
}
.streamer .ib {
  width: 28px;
  height: 28px;
  color: var(--amber);
}
.pills {
  display: flex;
  align-items: center;
  gap: 6px;
}
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px;
  border-radius: 8px;
  background: var(--pink);
  font-weight: 800;
  font-size: 11.5px;
  letter-spacing: 0.06em;
}
.pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: blink 1.2s ease-in-out infinite;
}
@keyframes blink {
  50% {
    opacity: 0.3;
  }
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.42);
  border: 1px solid var(--line);
  backdrop-filter: blur(10px);
  font-variant-numeric: tabular-nums;
  transition: box-shadow 0.4s;
}
.pill .ico {
  width: 14px;
  height: 14px;
  color: var(--muted);
}
.ldot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}
.pill.rec {
  display: none;
  color: #fff;
  background: rgba(254, 44, 85, 0.25);
  border-color: rgba(254, 44, 85, 0.6);
}
.rdot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pink);
  animation: blink 1s ease-in-out infinite;
}
.controls {
  position: absolute;
  left: 50%;
  bottom: 16px;
  translate: -50% 0;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 6px;
  border-radius: 16px;
  background: rgba(14, 14, 22, 0.72);
}
.vol {
  width: 64px;
  height: 4px;
  margin: 0 8px 0 2px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.15);
}
.vol i {
  display: block;
  width: 70%;
  height: 100%;
  border-radius: inherit;
  background: #fff;
}
.divider {
  width: 1px;
  height: 20px;
  margin: 0 5px;
  background: var(--line-strong);
}
.seg {
  position: relative;
  display: flex;
  padding: 3px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.05);
  transition: box-shadow 0.4s;
}
.seg span:not(.seg-thumb) {
  position: relative;
  z-index: 1;
  width: 74px;
  height: 28px;
  display: grid;
  place-items: center;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  transition: color 0.3s;
}
.seg span.on {
  color: #fff;
}
.seg-thumb {
  position: absolute;
  left: 3px;
  top: 3px;
  width: 74px;
  height: 28px;
  border-radius: 8px;
  background: var(--grad);
  transform: translateX(calc(var(--mi, 0) * 74px));
  transition: transform 0.5s var(--spring);
}
.tb {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding: 0 10px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 12.5px;
  transition: box-shadow 0.4s, background 0.4s;
}
.tb .ico {
  width: 15px;
  height: 15px;
}
.stats {
  position: absolute;
  left: 14px;
  top: 76px;
  width: 300px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(12, 12, 20, 0.78);
  opacity: 0;
  transform: translateY(-8px) scale(0.97);
  transition: opacity 0.4s var(--ease), transform 0.5s var(--ease);
}
.stats-head {
  font-weight: 650;
  margin-bottom: 8px;
}
.spark {
  width: 100%;
  height: 54px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
}
.spark polyline {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}
.stats-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 5px 12px;
  margin-top: 10px;
  font-size: 12px;
}
.stats-grid span {
  color: var(--muted);
}
.stats-grid b {
  text-align: right;
  font-family: var(--mono);
  font-weight: 500;
}
.qmenu {
  position: absolute;
  bottom: 66px;
  left: 50%;
  margin-left: 30px;
  width: 230px;
  padding: 6px;
  border-radius: 14px;
  background: rgba(14, 14, 22, 0.88);
  opacity: 0;
  transform: translateY(10px) scale(0.96);
  transform-origin: 50% 100%;
  transition: opacity 0.35s var(--ease), transform 0.45s var(--spring);
}
.qi {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 10px;
  border-radius: 9px;
  font-weight: 550;
}
.qi > span {
  width: 15px;
  color: var(--cyan);
}
.qi .ico {
  width: 15px;
  height: 15px;
}
.qi em {
  margin-left: auto;
  font-style: normal;
  font-size: 11.5px;
  color: var(--faint);
}
.qi.on {
  background: rgba(255, 255, 255, 0.07);
}
.gift-banner {
  position: absolute;
  left: 14px;
  top: 74px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(254, 44, 85, 0.85), rgba(139, 92, 246, 0.7));
  box-shadow: 0 10px 30px -8px rgba(254, 44, 85, 0.6);
  opacity: 0;
  transform: translateX(-110%);
  transition: transform 0.6s var(--spring), opacity 0.4s;
}
.gift-banner.show {
  opacity: 1;
  transform: none;
}
.gb-gift {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 20px;
  background: rgba(0, 0, 0, 0.3);
}
.gift-banner b {
  display: block;
  font-size: 13px;
}
.gb-text {
  font-size: 12px;
  opacity: 0.9;
}
.gb-x {
  font-size: 22px !important;
  font-style: italic;
  font-weight: 850;
  margin-left: 4px;
}
.hearts {
  position: absolute;
  right: 26px;
  bottom: 70px;
  width: 60px;
  height: 320px;
  pointer-events: none;
}
.hearts i {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 26px;
  height: 26px;
  margin-left: -13px;
  background: var(--c, var(--pink));
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 21s-7.5-4.6-9.7-9.3C.6 8 2.6 3.5 6.7 3.5c2.3 0 3.9 1.3 5.3 3.2 1.4-1.9 3-3.2 5.3-3.2 4.1 0 6.1 4.5 4.4 8.2C19.5 16.4 12 21 12 21z'/%3E%3C/svg%3E") center/contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 21s-7.5-4.6-9.7-9.3C.6 8 2.6 3.5 6.7 3.5c2.3 0 3.9 1.3 5.3 3.2 1.4-1.9 3-3.2 5.3-3.2 4.1 0 6.1 4.5 4.4 8.2C19.5 16.4 12 21 12 21z'/%3E%3C/svg%3E") center/contain no-repeat;
  animation: heart 2.6s ease-out forwards;
}
@keyframes heart {
  0% {
    opacity: 0;
    transform: translate(0, 0) scale(0.4);
  }
  12% {
    opacity: 1;
    transform: translate(calc(var(--x) * 0.2), -30px) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(var(--x), -300px) scale(0.8) rotate(var(--r));
  }
}
.flash {
  position: absolute;
  inset: 0;
  background: #fff;
  opacity: 0;
  pointer-events: none;
}
.flash.go {
  animation: flash 0.6s ease-out;
}
@keyframes flash {
  from {
    opacity: 0.75;
  }
}

/* chat */
.chat {
  flex: none;
  width: 290px;
  display: flex;
  flex-direction: column;
  background: #0c0c13;
  border-left: 1px solid var(--line);
  transition: box-shadow 0.4s;
}
.chat-head {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  font-weight: 650;
}
.chat-head .ico {
  width: 16px;
  height: 16px;
  color: var(--muted);
}
.chat-head em {
  margin-left: auto;
  font-style: normal;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--green);
}
.gifters {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
}
.g {
  position: relative;
}
.m-av.sm {
  width: 30px;
  height: 30px;
}
.g i {
  position: absolute;
  right: -3px;
  bottom: -3px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-style: normal;
  font-size: 9.5px;
  font-weight: 800;
  color: #1a1200;
  background: var(--amber);
  border: 2px solid #0c0c13;
}
.g:nth-child(2) i {
  background: #d4d4e0;
}
.g:nth-child(3) i {
  background: #e29a5b;
}
.gifters-sum {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--muted);
}
.gifters-sum .ico {
  width: 14px;
  height: 14px;
  color: var(--pink);
}
.gifters-sum b {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.chat-list {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 2px;
  padding: 8px;
  mask-image: linear-gradient(transparent, #000 22%);
}
.msg {
  display: flex;
  gap: 9px;
  padding: 6px 8px;
  border-radius: 10px;
  line-height: 1.4;
  animation: msg-in 0.45s var(--ease) both;
}
@keyframes msg-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
}
.msg .m-av {
  width: 24px;
  height: 24px;
  font-size: 10.5px;
}
.msg b {
  color: hsl(var(--h) 80% 72%);
  font-weight: 600;
  margin-right: 5px;
}
.msg.gift {
  background: linear-gradient(90deg, rgba(254, 44, 85, 0.16), rgba(139, 92, 246, 0.1));
  border: 1px solid rgba(254, 44, 85, 0.25);
}
.msg.gift em {
  font-style: normal;
  color: #ffd1dc;
}
.msg.join {
  color: var(--faint);
  font-size: 12px;
  padding-block: 3px;
}
.msg.join b {
  color: var(--faint);
}

/* hero mock state */
[data-mock='hero'] .chat-list {
  gap: 2px;
}

/* tour states — highlight the part of the UI the current step is about */
@keyframes hl {
  0%,
  100% {
    box-shadow: 0 0 0 2px rgba(37, 244, 238, 0.9), 0 0 26px 2px rgba(37, 244, 238, 0.45);
  }
  50% {
    box-shadow: 0 0 0 2px rgba(37, 244, 238, 0.5), 0 0 12px 0 rgba(37, 244, 238, 0.2);
  }
}
.tour-view[data-state='mode'] [data-hl='mode'],
.tour-view[data-state='quality'] .tb[data-hl='quality'],
.tour-view[data-state='rec'] [data-hl='rec'],
.tour-view[data-state='stats'] .ib[data-hl='stats'],
.tour-view[data-state='chat'] .ib[data-hl='chat'],
.tour-view[data-state='mini'] [data-hl='mini'] {
  animation: hl 1.6s ease-in-out infinite;
}
.tour-view[data-state='chat'] .chat {
  box-shadow: inset 0 0 0 2px rgba(37, 244, 238, 0.7), inset 0 0 40px rgba(37, 244, 238, 0.12);
}
.tour-view[data-state='quality'] .qmenu,
.tour-view[data-state='stats'] .stats {
  opacity: 1;
  transform: none;
}
.tour-view[data-state='stats'] .gift-banner {
  display: none;
}
.app.recording .pill.rec {
  display: inline-flex;
}
.app.recording .rec-btn {
  color: var(--pink);
  background: rgba(254, 44, 85, 0.16);
}
.tour-view[data-state='mini'] .chat {
  display: none;
}
.tour-view[data-state='mini'] .app {
  box-shadow: 0 30px 80px -10px rgba(0, 0, 0, 0.9), 0 0 0 2px rgba(37, 244, 238, 0.5);
}

/* ═════════════ Responsive ═════════════ */
@media (max-width: 1000px) {
  .links {
    display: none;
  }
  .nav .dl-link {
    margin-left: auto;
  }
  .tour-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .tour-stick {
    order: -1;
    top: 76px;
    z-index: 5;
    padding: 12px 0 24px;
    background: linear-gradient(var(--bg) 82%, transparent);
  }
  .step {
    min-height: 62vh;
    transform: none;
  }
  .bento {
    grid-template-columns: 1fr 1fr;
  }
  .c-gpu,
  .c-fav {
    grid-column: span 2;
  }
  .c-keys {
    grid-column: auto;
  }
  .numbers {
    grid-template-columns: 1fr 1fr;
  }
  .float-card {
    display: none;
  }
}
@media (max-width: 640px) {
  .hero {
    padding-top: 112px;
  }
  .cta-row {
    flex-direction: column;
    width: 100%;
  }
  .cta-row > * {
    width: 100%;
  }
  .hero-shot {
    margin-top: 40px;
  }
  .bento {
    grid-template-columns: 1fr;
  }
  .c-gpu,
  .c-fav,
  .c-keys {
    grid-column: auto;
  }
  .numbers {
    gap: 10px;
  }
  .num {
    padding: 18px 14px;
  }
  .path {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .path-line {
    display: none;
  }
  .speed {
    height: 220vh;
  }
  .step h3 {
    font-size: 23px;
  }
  .step p {
    font-size: 15px;
  }
  .final-card {
    padding: 56px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .rv {
    opacity: 1;
    transform: none;
    filter: none;
  }
}