:root {
  --acer-bg: #0f1419;
  --acer-accent: #1d9bf0;
  --acer-panel: #202b36;
  --acer-text: #f7f9f9;
  --acer-head: 4.5rem;
  --acer-max: 70rem;
  --acer-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6.6rem;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  background:
    linear-gradient(180deg, rgba(29, 155, 240, 0.08), transparent 18rem),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 71px,
      rgba(247, 249, 249, 0.03) 71px,
      rgba(247, 249, 249, 0.03) 72px
    ),
    var(--acer-bg);
  color: var(--acer-text);
  line-height: 1.65;
}

body.is-locked {
  overflow: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--acer-accent);
  text-underline-offset: 0.16em;
}

h1,
h2,
h3 {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--acer-text);
}

h1 {
  font-size: clamp(2.05rem, 4.4vw, 3.55rem);
  margin: 0 0 1.05rem;
}

h2 {
  font-size: clamp(1.4rem, 2.3vw, 2rem);
  margin: 0 0 0.95rem;
}

h3 {
  font-size: 1.05rem;
  margin: 0;
}

p {
  margin: 0 0 1rem;
}

p:last-child {
  margin-bottom: 0;
}

.acer-shell {
  width: min(var(--acer-max), calc(100% - 2rem));
  margin-inline: auto;
}

.acer-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 20, 25, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(29, 155, 240, 0.22);
}

.acer-head.is-stuck {
  box-shadow: 0 10px 32px rgba(15, 20, 25, 0.55);
  border-bottom-color: rgba(29, 155, 240, 0.45);
}

.acer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--acer-head);
  width: min(var(--acer-max), calc(100% - 2rem));
  margin-inline: auto;
}

.acer-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--acer-text);
  text-decoration: none;
  font-family: "IBM Plex Serif", Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.acer-brand img {
  width: 2rem;
  height: 2rem;
}

.acer-nav {
  display: flex;
  align-items: center;
  gap: 1.05rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.acer-nav a {
  color: rgba(247, 249, 249, 0.82);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.acer-nav a:hover,
.acer-nav a:focus-visible {
  color: var(--acer-accent);
}

.acer-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.62rem 1.05rem;
  border: 0;
  border-radius: 999px;
  background: var(--acer-accent);
  color: var(--acer-bg);
  font: 600 0.92rem/1 "IBM Plex Sans", system-ui, sans-serif;
  text-decoration: none;
  cursor: pointer;
}

.acer-btn:hover,
.acer-btn:focus-visible {
  filter: brightness(1.08);
  color: var(--acer-bg);
}

.acer-ghost {
  background: transparent;
  color: var(--acer-accent);
  box-shadow: inset 0 0 0 1px var(--acer-accent);
}

.acer-ghost:hover,
.acer-ghost:focus-visible {
  color: var(--acer-text);
  background: rgba(29, 155, 240, 0.12);
}

.acer-burger {
  display: none;
  width: 2.6rem;
  height: 2.6rem;
  padding: 0;
  border: 1px solid rgba(29, 155, 240, 0.35);
  border-radius: 0.4rem;
  background: var(--acer-panel);
  cursor: pointer;
}

.acer-burger span {
  display: block;
  width: 1.1rem;
  height: 2px;
  margin: 0.22rem auto;
  background: var(--acer-text);
}

.acer-drawer {
  display: none;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1rem 1.2rem 1.4rem;
  background: var(--acer-panel);
  border-bottom: 1px solid rgba(29, 155, 240, 0.28);
}

.acer-drawer.is-open {
  display: flex;
}

.acer-drawer a {
  color: var(--acer-text);
  text-decoration: none;
  font-size: 1.05rem;
}

.acer-ticker {
  overflow: hidden;
  border-top: 1px solid rgba(29, 155, 240, 0.2);
  background: var(--acer-panel);
}

.acer-ticker-track {
  display: flex;
  gap: 1.6rem;
  width: max-content;
  padding: 0.42rem 0;
  animation: acer-run 28s linear infinite;
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(247, 249, 249, 0.72);
}

.acer-ticker-track span::before {
  content: "";
  display: inline-block;
  width: 0.42rem;
  height: 0.42rem;
  margin-right: 0.55rem;
  border-radius: 50%;
  background: var(--acer-accent);
  box-shadow: 0 0 0 3px rgba(29, 155, 240, 0.2);
  vertical-align: middle;
}

.acer-hero {
  padding: 3.4rem 0 3.1rem;
  border-bottom: 1px solid rgba(247, 249, 249, 0.08);
}

.acer-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.85rem;
  color: var(--acer-accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.acer-kicker::before {
  content: "";
  width: 1.5rem;
  height: 2px;
  background: var(--acer-accent);
}

.acer-lead {
  max-width: 46rem;
  font-size: 1.05rem;
  color: rgba(247, 249, 249, 0.9);
}

.acer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.35rem;
}

.acer-block {
  padding: 3rem 0;
  border-bottom: 1px solid rgba(247, 249, 249, 0.08);
}

.acer-block--panel {
  background: rgba(32, 43, 54, 0.55);
}

.acer-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
}

.acer-stack {
  display: grid;
  gap: 1rem;
}

.acer-stack--three {
  grid-template-columns: repeat(3, 1fr);
}

.acer-card {
  padding: 1.15rem 1.2rem;
  background: var(--acer-panel);
  border: 1px solid rgba(29, 155, 240, 0.16);
  border-left: 3px solid var(--acer-accent);
}

.acer-feed .acer-card {
  position: relative;
  padding-left: 1.7rem;
}

.acer-feed .acer-card::before {
  content: "";
  position: absolute;
  left: 0.7rem;
  top: 1.35rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--acer-accent);
  animation: acer-pulse 1.8s ease-in-out infinite;
}

.acer-plate {
  margin: 0;
}

.acer-plate--follow {
  margin-top: 1.3rem;
}

.acer-plate img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid rgba(29, 155, 240, 0.28);
  background: var(--acer-panel);
}

.acer-plate figcaption {
  margin-top: 0.7rem;
  font-size: 0.9rem;
  color: rgba(247, 249, 249, 0.72);
  font-family: "IBM Plex Serif", Georgia, serif;
}

.acer-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.6rem;
  align-items: start;
}

.acer-faq {
  display: grid;
  gap: 0.65rem;
}

.acer-item {
  background: var(--acer-panel);
  border: 1px solid rgba(29, 155, 240, 0.16);
}

.acer-item button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1.1rem;
  border: 0;
  background: transparent;
  color: var(--acer-text);
  font: 600 1rem/1.35 "IBM Plex Serif", Georgia, serif;
  text-align: left;
  cursor: pointer;
}

.acer-item button::after {
  content: "+";
  color: var(--acer-accent);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: 1.3rem;
  line-height: 1;
}

.acer-item.is-open button::after {
  content: "–";
}

.acer-item-panel {
  display: none;
  padding: 0 1.1rem 1.05rem;
}

.acer-item.is-open .acer-item-panel {
  display: block;
}

.acer-foot {
  padding: 2.2rem 0 6.5rem;
  background: var(--acer-panel);
  border-top: 1px solid rgba(29, 155, 240, 0.25);
}

.acer-foot-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.acer-foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.acer-foot nav a {
  color: var(--acer-text);
  text-decoration: none;
  font-size: 0.92rem;
}

.acer-note {
  margin: 0;
  font-size: 0.86rem;
  color: rgba(247, 249, 249, 0.72);
}

.acer-legal {
  padding: 3rem 0 2.4rem;
}

.acer-legal article {
  max-width: 46rem;
}

.acer-legal h2 {
  margin-top: 1.8rem;
}

.acer-legal ul {
  padding-left: 1.2rem;
}

.acer-cookie {
  position: fixed;
  z-index: 60;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.95rem 1.1rem;
  background: var(--acer-panel);
  border: 1px solid rgba(29, 155, 240, 0.35);
  box-shadow: 0 12px 40px rgba(15, 20, 25, 0.45);
}

.acer-cookie.is-hidden {
  display: none;
}

.acer-cookie p {
  margin: 0;
  font-size: 0.9rem;
}

.acer-float {
  position: fixed;
  z-index: 45;
  right: 1.1rem;
  bottom: 1.1rem;
  box-shadow: 0 10px 28px rgba(15, 20, 25, 0.4);
}

body:has(.acer-cookie:not(.is-hidden)) .acer-float {
  bottom: 6.4rem;
}

[data-veil] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--acer-ease), transform 0.7s var(--acer-ease);
}

[data-veil].is-in {
  opacity: 1;
  transform: none;
}

@keyframes acer-run {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@keyframes acer-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

@media (max-width: 960px) {
  .acer-nav {
    display: none;
  }

  .acer-burger {
    display: block;
  }

  .acer-pair,
  .acer-stack--three,
  .acer-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .acer-cookie {
    flex-direction: column;
    align-items: stretch;
  }

  .acer-hero,
  .acer-block {
    padding-top: 2.2rem;
    padding-bottom: 2.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .acer-ticker-track,
  [data-veil],
  .acer-feed .acer-card::before {
    animation: none;
    transition: none;
  }

  [data-veil] {
    opacity: 1;
    transform: none;
  }
}