/* drasna.com — monochrome, like the app and its account pages. The whole page turns dark or
   light with the section in view (body[data-theme]); the grid texture follows. */

@font-face {
  font-family: "Inter";
  src: url(/assets/inter.woff2) format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --pad: clamp(20px, 5vw, 64px);
}

body[data-theme="dark"] {
  --bg: #0b0b0b;
  --fg: #f3f3f1;
  --muted: #9b9b96;
  --line: rgb(255 255 255 / 0.055);
  --card: #131313;
  --border: rgb(255 255 255 / 0.11);
  --soft: rgb(255 255 255 / 0.035);
  --glow: rgb(255 255 255 / 0.07);
  color-scheme: dark;
}
body[data-theme="light"] {
  --bg: #f6f6f3;
  --fg: #111111;
  --muted: #6c6c67;
  --line: rgb(0 0 0 / 0.06);
  --card: #ffffff;
  --border: #e1e1dc;
  --soft: rgb(0 0 0 / 0.03);
  --glow: rgb(0 0 0 / 0.05);
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color 0.8s var(--ease), color 0.8s var(--ease);
}
h1,
h2,
h3,
p {
  margin: 0;
}
a {
  color: inherit;
}
img {
  display: block;
  max-width: 100%;
}
:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 3px;
}

/* The grid of the account pages, fading out to the edges, and a soft light that follows the
   pointer. */
.texture {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: -1px -1px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 35%, #000 35%, transparent 85%);
  transition: background-image 0.8s var(--ease);
}
.texture::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mx, 70%) var(--my, 30%), var(--glow), transparent 60%);
}
main,
.foot {
  position: relative;
  z-index: 1;
}

.i {
  width: 18px;
  height: 18px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.logo {
  width: 26px;
  height: 34px;
  flex: none;
}
.brand {
  display: inline-flex;
  align-items: flex-end;
  gap: 8px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.eyebrow {
  display: inline-block;
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: color 0.8s var(--ease);
}
h1 {
  font-size: clamp(44px, 7vw, 108px);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.048em;
}
h2 {
  margin: 18px 0 22px;
  font-size: clamp(36px, 5.2vw, 76px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.042em;
}
h3 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.lead {
  max-width: 580px;
  color: var(--muted);
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.7;
  transition: color 0.8s var(--ease);
}
.note {
  margin-top: 28px;
  color: var(--muted);
  font-size: 13px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 44px;
  padding: 0 22px;
  border: 1px solid;
  border-radius: 999px;
  font: 500 14.5px var(--font);
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background-color 0.3s, color 0.3s, border-color 0.3s;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn .i {
  transition: transform 0.25s var(--ease);
}
.btn:hover .i {
  transform: translateX(3px);
}
/* "Download": white, black text and border, on any background. */
.btn-light {
  border-color: #0b0b0b;
  background: #ffffff;
  color: #0b0b0b;
}
.btn-dark {
  border-color: #111111;
  background: #111111;
  color: #ffffff;
}
.btn-ghost {
  border-color: var(--border);
  background: transparent;
  color: var(--fg);
}
.btn-ghost:hover {
  border-color: var(--fg);
}
.btn-lg {
  height: 54px;
  padding: 0 28px;
  font-size: 16px;
}
.btn-block {
  width: 100%;
}

/* ---------- Header ---------- */
.top {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  padding: env(safe-area-inset-top, 0px) var(--pad) 0;
  transition: background-color 0.4s, backdrop-filter 0.4s, border-color 0.4s;
  border-bottom: 1px solid transparent;
}
.top.scrolled {
  border-bottom-color: var(--border);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
}
.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.plain {
  margin-right: 8px;
  color: var(--muted);
  font-size: 14.5px;
  text-decoration: none;
  transition: color 0.2s;
}
.plain:hover {
  color: var(--fg);
}

/* ---------- Menu (large, from the right) ---------- */
.menu-scrim {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: rgb(0 0 0 / 0.3);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.menu-scrim.open {
  opacity: 1;
}
.menu {
  position: fixed;
  inset: 0 0 0 auto;
  z-index: 31;
  display: flex;
  flex-direction: column;
  width: min(560px, 100vw);
  padding: 28px 40px 36px;
  border-left: 1px solid rgb(255 255 255 / 0.1);
  /* See-through: the page shows blurred behind it. */
  background: rgb(13 13 13 / 0.62) radial-gradient(500px circle at 100% 0%, rgb(255 255 255 / 0.07), transparent 60%);
  backdrop-filter: blur(28px) saturate(150%);
  -webkit-backdrop-filter: blur(28px) saturate(150%);
  color: #f3f3f1;
  transform: translateX(102%);
  transition: transform 0.55s var(--ease);
}
.menu.open {
  transform: none;
}
.menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.menu-logo .logo {
  width: 30px;
  height: 40px;
}
.icon-btn {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgb(255 255 255 / 0.14);
  border-radius: 50%;
  background: none;
  color: inherit;
  cursor: pointer;
  transition: transform 0.3s var(--ease), border-color 0.2s;
}
.icon-btn:hover {
  border-color: rgb(255 255 255 / 0.4);
  transform: rotate(90deg);
}
.menu-links {
  display: grid;
  gap: 6px;
  margin: auto 0;
}
.menu-links a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  color: #a7a7a2;
  font-size: clamp(28px, 3.3vw, 44px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.2;
  text-decoration: none;
  opacity: 0;
  transform: translateX(30px);
  transition: color 0.25s, opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.menu.open .menu-links a {
  opacity: 1;
  transform: none;
  transition-delay: calc(0.12s + var(--i) * 0.05s), calc(0.12s + var(--i) * 0.05s), calc(0.12s + var(--i) * 0.05s);
}
.menu-links a:hover {
  color: #ffffff;
}
.menu-links .ext {
  font-size: 0.45em;
  opacity: 0.6;
}
.menu-foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid rgb(255 255 255 / 0.1);
}
.menu-foot div {
  display: grid;
  gap: 6px;
}
.menu-foot .eyebrow {
  color: #8f8f8a;
}
.menu-foot div a {
  text-decoration: none;
}
.lang {
  display: inline-grid;
  place-items: center;
  min-width: 44px;
  height: 32px;
  padding: 0 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
  opacity: 0.75;
}
.lang:hover {
  opacity: 1;
}

/* ---------- Sections ---------- */
section {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100vh;
  padding: 140px var(--pad) 120px;
}
.wrap {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
}
.two {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(32px, 6vw, 88px);
  align-items: center;
}

/* Things rise into place as their section comes in (main.js adds .in). */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: calc(var(--i, 0) * 60ms);
}
.in .reveal,
.reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------- Hero: the slider ---------- */
/* The hero: the words centered on top, the deck of screens wide below (so they read). */
.hero {
  flex-direction: column;
  align-items: center;
  gap: 64px;
  padding-top: 150px;
}
.hero-copy {
  display: grid;
  justify-items: center;
  gap: 26px;
  max-width: 980px;
  min-width: 0;
  text-align: center;
  z-index: 2;
}
.hero-copy .lead {
  max-width: 640px;
}
.ctas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 6px;
}
.stage {
  display: grid;
  gap: 26px;
  width: 100%;
  max-width: 1240px;
  min-width: 0;
}
.deck {
  position: relative;
  /* The screenshots are wide (about 2:1, the app's window). */
  aspect-ratio: 2.2 / 1;
  perspective: 1600px;
}
.card {
  position: absolute;
  inset: 0;
  margin: 0;
  transform-origin: 50% 100%;
  transition: transform 1s var(--ease), opacity 0.9s var(--ease), filter 0.9s var(--ease);
  will-change: transform;
}
/* Positions in the deck: 0 in front; 1 and 2 waiting behind, up and to the right; 3 leaving. */
.card[data-pos="0"] {
  z-index: 4;
  transform: translate3d(0, 0, 0) rotateX(0) scale(1);
  opacity: 1;
}
.card[data-pos="1"] {
  z-index: 3;
  transform: translate3d(5%, -7%, -80px) scale(0.93);
  opacity: 0.5;
  filter: blur(1px);
}
.card[data-pos="2"] {
  z-index: 2;
  transform: translate3d(10%, -14%, -160px) scale(0.86);
  opacity: 0.2;
  filter: blur(2px);
}
.card[data-pos="3"] {
  z-index: 5;
  transform: translate3d(-8%, 14%, 120px) rotateX(-8deg) scale(1.04);
  opacity: 0;
}
.window {
  overflow: hidden;
  height: 100%;
  border: 1px solid rgb(255 255 255 / 0.14);
  border-radius: 16px;
  background: #101010;
  box-shadow: 0 50px 120px -30px rgb(0 0 0 / 0.65), 0 0 0 1px rgb(0 0 0 / 0.2);
}
body[data-theme="light"] .window {
  border-color: rgb(0 0 0 / 0.12);
  box-shadow: 0 50px 120px -40px rgb(0 0 0 / 0.35);
}
.chrome {
  display: flex;
  gap: 7px;
  padding: 12px 14px;
  border-bottom: 1px solid rgb(255 255 255 / 0.08);
  background: #161616;
}
.chrome i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #3a3a3a;
}
.screen {
  height: calc(100% - 36px);
}
.screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Wider than any screenshot: only the bottom edge may be cut, never the tree. */
  object-position: top left;
  background: #f3f3f3;
}
/* A drawn window while the screenshot isn't there. */
.mock {
  display: grid;
  grid-template-columns: 26% 1fr;
  height: 100%;
}
.mock-side {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 18px 14px;
  border-right: 1px solid rgb(255 255 255 / 0.06);
  background: #141414;
}
.mock-side span,
.mock-bar span,
.mock-rows span {
  height: 9px;
  border-radius: 4px;
  background: rgb(255 255 255 / 0.08);
}
.mock-side span.on {
  background: rgb(255 255 255 / 0.22);
}
.mock-main {
  display: grid;
  grid-template-rows: auto 1fr;
}
.mock-bar {
  display: flex;
  gap: 10px;
  padding: 16px 18px;
  border-bottom: 1px solid rgb(255 255 255 / 0.06);
}
.mock-bar span {
  width: 70px;
  height: 22px;
  border-radius: 6px;
}
.mock-rows {
  display: grid;
  align-content: start;
  gap: 16px;
  padding: 22px 18px;
}
.mock-rows span {
  width: var(--w);
}
.caption {
  position: relative;
  min-height: 52px;
  text-align: center;
}
.cap {
  position: absolute;
  inset: 0;
  display: grid;
  gap: 4px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.cap.on {
  opacity: 1;
  transform: none;
}
.cap strong {
  font-size: 17px;
  font-weight: 600;
}
.cap span {
  color: var(--muted);
  font-size: 14.5px;
}
.tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.tabs button {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 10px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  font: 500 14px var(--font);
  text-align: left;
  cursor: pointer;
  transition: color 0.3s;
}
.tabs button[aria-selected="true"],
.tabs button:hover {
  color: var(--fg);
}
.tabs .n {
  font-variant-numeric: tabular-nums;
  opacity: 0.6;
}
.tabs .bar {
  grid-column: 1 / -1;
  overflow: hidden;
  height: 2px;
  margin-top: 8px;
  border-radius: 2px;
  background: var(--border);
}
.tabs .bar span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--fg);
}
.tabs button[aria-selected="true"] .bar span {
  animation: fill var(--slide, 6s) linear forwards;
}
.stage.paused .tabs button[aria-selected="true"] .bar span {
  animation-play-state: paused;
}
@keyframes fill {
  to {
    width: 100%;
  }
}
.engines {
  width: 100%;
  max-width: 1240px;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.marquee {
  overflow: hidden;
  flex: 1 1 0;
  min-width: 0;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.track {
  display: flex;
  gap: 56px;
  width: max-content;
  animation: slide 32s linear infinite;
}
.track span {
  color: var(--muted);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
@keyframes slide {
  to {
    transform: translateX(-50%);
  }
}

/* ---------- IDE ---------- */
.points {
  display: grid;
  gap: 22px;
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
}
.points li {
  display: flex;
  gap: 16px;
}
.points li > .i {
  width: 30px;
  height: 30px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 50%;
}
.points strong {
  display: block;
  font-size: 16px;
}
.points span {
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.6;
}
.tilt {
  aspect-ratio: 1056 / 812;
  perspective: 1400px;
}
.tilt .window {
  transform: rotateY(-10deg) rotateX(5deg);
  transition: transform 0.9s var(--ease);
}
.tilt:hover .window {
  transform: none;
}

/* ---------- Modules ---------- */
.mod-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 56px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--border);
}
.mod {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 200px;
  padding: 28px 24px;
  background: var(--bg);
  transition: background-color 0.8s var(--ease);
}
.mod:hover {
  background: color-mix(in srgb, var(--fg) 4%, var(--bg));
}
.mod-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.mod p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

/* ---------- Plans ---------- */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 56px;
  align-items: stretch;
}
.plan {
  position: relative;
  display: grid;
  grid-template-rows: auto auto auto auto 1fr;
  gap: 14px;
  padding: 34px 30px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--card);
  transition: transform 0.4s var(--ease), background-color 0.8s var(--ease);
}
.plan:hover {
  transform: translateY(-4px);
}
.plan.featured {
  border-color: #0e0e0e;
  background: #0e0e0e;
  color: #f3f3f1;
  --muted: #a3a39e;
  --border: rgb(255 255 255 / 0.12);
}
.badge {
  position: absolute;
  top: 22px;
  right: 22px;
  padding: 4px 12px;
  border-radius: 999px;
  background: #ffffff;
  color: #0e0e0e;
  font-size: 11.5px;
  font-weight: 600;
}
.plan-text {
  min-height: 3.2em;
  color: var(--muted);
  font-size: 14.5px;
}
.price {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin: 10px 0 8px;
  font-size: 54px;
  font-weight: 600;
  letter-spacing: -0.045em;
}
.price .cur {
  font-size: 26px;
}
.price small {
  margin-left: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0;
}
.plan ul {
  display: grid;
  align-content: start;
  gap: 12px;
  margin: 14px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--border);
  list-style: none;
  font-size: 14.5px;
}
.plan li {
  display: flex;
  gap: 10px;
}
.plan li .i {
  width: 16px;
  height: 16px;
  margin-top: 2px;
}

/* ---------- Download ---------- */
.os-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 56px;
}
.os {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 34px 30px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--soft);
  text-decoration: none;
  transition: transform 0.4s var(--ease), border-color 0.3s;
}
.os:hover {
  transform: translateY(-4px);
  border-color: var(--fg);
}
.os-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 18px;
  fill: currentColor;
  stroke: none;
}
.os strong {
  font-size: 26px;
  letter-spacing: -0.02em;
}
.os span {
  color: var(--muted);
  font-size: 14px;
}
.os .go {
  position: absolute;
  top: 30px;
  right: 30px;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--fg);
  transition: transform 0.4s var(--ease), background-color 0.3s;
}
.os:hover .go {
  transform: rotate(-45deg);
}

/* ---------- FAQ ---------- */
.faq .two {
  align-items: start;
}
.qa {
  display: grid;
  border-top: 1px solid var(--border);
}
.qa details {
  border-bottom: 1px solid var(--border);
}
.qa summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 0;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.01em;
  list-style: none;
  cursor: pointer;
}
.qa summary::-webkit-details-marker {
  display: none;
}
.qa summary .i {
  transition: transform 0.35s var(--ease);
}
.qa details[open] summary .i {
  transform: rotate(45deg);
}
.qa p {
  max-width: 640px;
  padding: 0 0 26px;
  color: var(--muted);
  line-height: 1.7;
}

/* ---------- Policies ---------- */
.pol-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 56px;
}
.pol-grid article {
  display: grid;
  align-content: start;
  gap: 14px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}
.num {
  color: var(--muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.pol-grid p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

/* ---------- Footer: tall, with the name across it ---------- */
.foot {
  padding: 120px var(--pad) 36px;
  border-top: 1px solid var(--border);
}
.foot-top {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 40px;
}
.foot-brand {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: 18px;
}
.foot-brand p {
  max-width: 320px;
  color: var(--muted);
  line-height: 1.6;
}
.foot-col {
  display: grid;
  align-content: start;
  gap: 12px;
}
.foot-col a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.foot-col a:hover {
  color: var(--fg);
}
.word {
  margin: 90px 0 30px;
  font-size: clamp(96px, 23vw, 360px);
  font-weight: 700;
  line-height: 0.8;
  letter-spacing: -0.07em;
  text-align: center;
  color: transparent;
  background: linear-gradient(180deg, color-mix(in srgb, var(--fg) 22%, transparent), transparent 92%);
  -webkit-background-clip: text;
  background-clip: text;
  user-select: none;
}
.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13.5px;
}
.powered a {
  color: var(--fg);
  font-weight: 600;
  text-decoration: none;
}
.powered a:hover {
  text-decoration: underline;
}

/* ---------- Narrow screens ---------- */
@media (max-width: 1020px) {
  .two {
    grid-template-columns: 1fr;
  }
  .mod-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .plan-grid,
  .os-grid,
  .pol-grid {
    grid-template-columns: 1fr;
  }
  .foot-top {
    grid-template-columns: 1fr 1fr;
  }
  .foot-brand {
    grid-column: 1 / -1;
  }
  .tilt .window {
    transform: none;
  }
}
@media (max-width: 640px) {
  .top {
    height: 64px;
  }
  .top .plain,
  .top .btn-light {
    display: none;
  }
  .btn-ghost span {
    display: none;
  }
  section {
    min-height: auto;
    padding: 110px var(--pad) 90px;
  }
  .hero {
    min-height: 100vh;
  }
  .mod-grid {
    grid-template-columns: 1fr;
  }
  .mod {
    min-height: 0;
  }
  .tabs {
    grid-template-columns: repeat(2, 1fr);
  }
  .engines {
    flex-wrap: wrap;
    gap: 14px;
  }
  .marquee {
    flex-basis: 100%;
    width: 100%;
  }
  .menu {
    padding: 22px 24px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
  .track {
    animation: none;
  }
}