:root {
  --bg: #07080a;
  --bg-deep: #060709;
  --panel: #0f1216;
  --panel-2: #13171c;
  --line: rgba(255, 255, 255, 0.07);
  --line-strong: rgba(255, 255, 255, 0.12);
  --text: #eef1ec;
  --muted: #9aa49b;
  --accent: #c9f45a;
  --accent-ink: #0a0c05;
  --teal: #8fe3cf;
  --radius: 18px;
  --container: 1180px;
  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

img {
  max-width: 100%;
}

a {
  color: inherit;
}

svg {
  display: block;
}

.wrap {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.skip {
  position: fixed;
  top: -70px;
  left: 16px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  font-size: 13px;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip:focus {
  top: 12px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease,
    box-shadow 0.25s ease, color 0.25s ease;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 10px 30px -12px rgba(201, 244, 90, 0.55);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: #d6ff70;
  box-shadow: 0 16px 40px -14px rgba(201, 244, 90, 0.65);
}

.btn-ghost {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.025);
  color: var(--text);
}

.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: rgba(201, 244, 90, 0.35);
  background: rgba(201, 244, 90, 0.05);
  color: var(--accent);
}

.btn-sm {
  padding: 9px 17px;
  font-size: 13px;
}

/* ---------- header ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.scrolled {
  background: rgba(7, 8, 10, 0.74);
  border-bottom-color: var(--line);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.brand svg {
  color: var(--accent);
  transition: transform 0.35s ease;
}

.brand:hover svg {
  transform: rotate(-8deg) translateY(-1px);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a {
  position: relative;
  padding: 4px 0;
  font-size: 13.5px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.menu-btn span {
  display: block;
  width: 16px;
  height: 1.5px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.25s ease;
}

.menu-btn[aria-expanded="true"] span:first-child {
  transform: translateY(3.25px) rotate(45deg);
}

.menu-btn[aria-expanded="true"] span:last-child {
  transform: translateY(-3.25px) rotate(-45deg);
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding-top: 150px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -34%;
  left: 50%;
  width: 1200px;
  height: 820px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(201, 244, 90, 0.1), transparent 72%);
  filter: blur(20px);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.026) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(70% 55% at 50% 18%, #000 12%, transparent 76%);
  mask-image: radial-gradient(70% 55% at 50% 18%, #000 12%, transparent 76%);
}

.hero > .wrap,
.hero > .marquee {
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: clamp(40px, 6vw, 84px);
  padding-bottom: clamp(64px, 9vw, 104px);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  padding: 8px 14px;
  border: 1px solid rgba(201, 244, 90, 0.22);
  border-radius: 999px;
  background: rgba(201, 244, 90, 0.06);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--accent);
}

.pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(201, 244, 90, 0.5);
  animation: pulse 2.6s ease-out infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(201, 244, 90, 0.45); }
  70% { box-shadow: 0 0 0 7px rgba(201, 244, 90, 0); }
  100% { box-shadow: 0 0 0 0 rgba(201, 244, 90, 0); }
}

.hero h1 {
  margin: 26px 0 24px;
  font-family: var(--font-display);
  font-size: clamp(46px, 6.1vw, 82px);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.hero h1 .accent {
  color: var(--accent);
}

.lead {
  max-width: 56ch;
  margin: 0;
  color: var(--muted);
  font-size: clamp(15.5px, 1.4vw, 17.5px);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-actions.center {
  justify-content: center;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  font-size: 12.5px;
  color: var(--muted);
}

.hero-meta li {
  display: flex;
  align-items: center;
  gap: 7px;
}

.hero-meta svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

/* ---------- app mockup ---------- */

.hero-visual {
  min-width: 0;
}

.mockup-wrap {
  position: relative;
  isolation: isolate;
}

.mockup-glow {
  position: absolute;
  inset: -14% -8%;
  z-index: -1;
  background: radial-gradient(45% 45% at 62% 40%, rgba(201, 244, 90, 0.24), transparent 70%),
    radial-gradient(42% 46% at 28% 72%, rgba(143, 227, 207, 0.17), transparent 72%);
  filter: blur(50px);
  pointer-events: none;
}

.app-window {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 16px;
  background: #0d1117;
  box-shadow: 0 45px 90px -32px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
  transform: rotateY(-8deg) rotateX(3deg) rotate(-1deg);
  transition: transform 0.55s cubic-bezier(0.2, 0.7, 0.2, 1);
  will-change: transform;
}

.app-window img {
  display: block;
  width: 100%;
  height: auto;
}

.app-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: #0b0f14;
}

.win-dots {
  display: flex;
  gap: 6px;
}

.win-dots i {
  display: block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #2b323b;
}

.win-dots i:nth-child(1) { background: #ff5f57; opacity: 0.85; }
.win-dots i:nth-child(2) { background: #febc2e; opacity: 0.85; }
.win-dots i:nth-child(3) { background: #28c840; opacity: 0.85; }

.app-bar-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  white-space: nowrap;
}

.chip {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 13px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  background: rgba(12, 15, 19, 0.84);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.9);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: #d7ded5;
  white-space: nowrap;
}

.chip-fps {
  top: -20px;
  right: 22px;
  animation: float 7s ease-in-out infinite;
}

.chip-fps b {
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
}

.chip-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #5be37b;
  box-shadow: 0 0 10px rgba(91, 227, 123, 0.9);
}

.chip-profile {
  bottom: 30px;
  left: -30px;
  animation: float 8s ease-in-out -3s infinite;
}

.chip-swatch {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), #6fd8c0);
}

.chip-mode {
  bottom: -16px;
  right: 64px;
  color: var(--accent);
  border-color: rgba(201, 244, 90, 0.3);
  background: rgba(24, 32, 10, 0.82);
  animation: float 6.4s ease-in-out 0.8s infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

/* ---------- marquee ---------- */

.marquee {
  overflow: hidden;
  padding: 19px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 32s linear infinite;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-group {
  display: flex;
  align-items: center;
  gap: 38px;
  padding-right: 38px;
}

.m-item {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  white-space: nowrap;
}

.m-dot {
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 1px;
  transform: rotate(45deg);
  opacity: 0.6;
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------- sections ---------- */

.section {
  position: relative;
  padding: clamp(80px, 11vw, 128px) 0;
}

section[id] {
  scroll-margin-top: 96px;
}

.section-head {
  max-width: 760px;
}

.section-head.center {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.kicker::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.center .kicker {
  justify-content: center;
}

h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(34px, 4.4vw, 54px);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.sub {
  max-width: 62ch;
  margin: 0;
  color: var(--muted);
  font-size: 16.5px;
}

.sub a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.center .sub {
  margin-inline: auto;
}

/* ---------- features ---------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 56px;
}

.card {
  position: relative;
  overflow: hidden;
  padding: 30px 28px 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 60%), var(--panel);
  transition: transform 0.35s ease, border-color 0.35s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 244, 90, 0.55), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 244, 90, 0.24);
}

.card:hover::before {
  opacity: 1;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 44px;
}

.card-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.35);
}

.card-top svg {
  width: 22px;
  height: 22px;
  color: var(--accent);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.65;
}

/* ---------- showcase ---------- */

.showcase-section {
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.016) 30%, transparent);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(40px, 7vw, 90px);
}

.check-list {
  display: grid;
  gap: 14px;
  margin: 28px 0 30px;
  padding: 0;
  list-style: none;
}

.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: #cfd6ce;
  font-size: 14.5px;
}

.check-list svg {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex: none;
  color: var(--accent);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(201, 244, 90, 0.32);
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: border-color 0.25s ease;
}

.text-link svg {
  width: 15px;
  height: 15px;
  transition: transform 0.25s ease;
}

.text-link:hover {
  border-color: var(--accent);
}

.text-link:hover svg {
  transform: translateX(3px);
}

.panel-stack {
  display: grid;
  gap: 14px;
}

.mini-panel {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent), var(--panel);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.8);
  transition: transform 0.4s ease, border-color 0.4s ease;
}

.mini-panel:nth-child(1) { transform: translateX(-14px) rotate(-0.4deg); }
.mini-panel:nth-child(2) { transform: translateX(16px) rotate(0.5deg); }
.mini-panel:nth-child(3) { transform: translateX(-6px) rotate(-0.3deg); }

.panel-stack:hover .mini-panel {
  transform: none;
}

.mini-head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #c3ccc1;
}

.mini-head svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

.mini-status {
  margin-left: auto;
  padding: 3px 8px;
  border: 1px solid rgba(127, 227, 160, 0.25);
  border-radius: 99px;
  background: rgba(127, 227, 160, 0.07);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: #7fe3a0;
  text-transform: uppercase;
}

.mini-body {
  padding: 4px 18px 10px;
}

.mrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  font-size: 13px;
  color: var(--muted);
}

.mrow + .mrow {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.val {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 7px;
  background: #171c22;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #d9e0d6;
  white-space: nowrap;
}

.sw {
  position: relative;
  display: inline-block;
  width: 34px;
  height: 20px;
  flex: none;
  border-radius: 999px;
  background: #23282f;
  transition: background 0.25s ease;
}

.sw::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #7a8590;
  transition: left 0.25s ease, background 0.25s ease;
}

.sw.on {
  background: rgba(201, 244, 90, 0.25);
}

.sw.on::after {
  left: 17px;
  background: var(--accent);
}

.range {
  display: block;
  width: 110px;
  height: 4px;
  overflow: hidden;
  border-radius: 99px;
  background: #242a31;
}

.range i {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--teal), var(--accent));
}

/* ---------- steps ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 56px;
}

.step {
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.step-num {
  display: block;
  margin-bottom: 18px;
  font-family: var(--font-display);
  font-size: clamp(44px, 5vw, 62px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.16);
}

.step:nth-child(1) .step-num {
  -webkit-text-stroke-color: rgba(201, 244, 90, 0.55);
}

.step h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
}

.step p {
  max-width: 34ch;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* ---------- specs ---------- */

.specs-section {
  border-top: 1px solid var(--line);
}

.specs-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: start;
  gap: clamp(40px, 6vw, 80px);
}

.tip {
  margin-top: 34px;
  padding: 18px 20px;
  border: 1px solid rgba(201, 244, 90, 0.18);
  border-left: 3px solid var(--accent);
  border-radius: 0 12px 12px 0;
  background: linear-gradient(90deg, rgba(201, 244, 90, 0.07), rgba(201, 244, 90, 0.02));
  color: #dbe3d2;
  font-size: 13.5px;
  line-height: 1.6;
}

.tip strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.spec-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 44px;
}

.spec {
  padding: 20px 0 22px;
  border-top: 1px solid var(--line);
}

.spec-label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.38);
}

.spec-value {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: -0.01em;
  color: #e7ede3;
}

.spec-value em {
  display: block;
  margin-top: 3px;
  font-family: var(--font-body);
  font-size: 11.5px;
  font-style: normal;
  color: var(--muted);
}

.spec-value.accent-value {
  color: var(--accent);
}

/* ---------- faq ---------- */

.faq-section {
  border-top: 1px solid var(--line);
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: start;
  gap: clamp(40px, 6vw, 80px);
}

.faq-copy {
  position: sticky;
  top: 110px;
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  font-size: 15.5px;
  font-weight: 500;
  color: #e6ebe0;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--accent);
  transition: transform 0.3s ease;
}

details[open] .faq-icon {
  transform: rotate(45deg);
}

.faq-list details p {
  max-width: 60ch;
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- cta ---------- */

.cta-panel {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(44px, 7vw, 84px) clamp(24px, 5vw, 64px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
  background: radial-gradient(90% 130% at 50% 0%, rgba(201, 244, 90, 0.12), transparent 60%),
    linear-gradient(180deg, #10141a, #0b0e12);
  text-align: center;
}

.cta-panel::before {
  content: "";
  position: absolute;
  inset: auto -20% -60% -20%;
  z-index: -1;
  height: 70%;
  background: radial-gradient(closest-side, rgba(143, 227, 207, 0.14), transparent 70%);
  filter: blur(30px);
}

.cta-panel h2 {
  max-width: 20ch;
  margin-inline: auto;
}

.cta-panel .sub {
  max-width: 52ch;
  margin-inline: auto;
}

.update-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 24px 0 0;
  padding: 8px 14px;
  border: 1px solid rgba(201, 244, 90, 0.22);
  border-radius: 999px;
  background: rgba(201, 244, 90, 0.06);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.update-pill strong {
  font-weight: 500;
  color: var(--accent);
}

.update-dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(201, 244, 90, 0.8);
  animation: pulse 2.6s ease-out infinite;
}

.fineprint {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.32);
}

/* ---------- footer ---------- */

.site-footer {
  padding: 56px 0 36px;
  border-top: 1px solid var(--line);
  background: var(--bg-deep);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
}

.footer-brand p {
  max-width: 32ch;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  font-size: 13px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.disclaimer {
  max-width: 70ch;
  margin: 0;
  color: rgba(255, 255, 255, 0.32);
  font-size: 11.5px;
  line-height: 1.6;
}

.disclaimer a {
  color: rgba(201, 244, 90, 0.75);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.disclaimer a:hover {
  color: var(--accent);
}

.copyright {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
}

/* ---------- reveal ---------- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
  transition-delay: var(--d, 0s);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- responsive ---------- */

@media (max-width: 1040px) {
  .hero {
    padding-top: 130px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .hero-visual {
    width: 100%;
    max-width: 640px;
    margin-inline: auto;
  }

  .shift-left {
    margin-left: 0;
  }
}

@media (max-width: 920px) {
  .showcase-grid {
    grid-template-columns: 1fr;
  }

  .panel-stack {
    max-width: 560px;
  }

  .specs-grid {
    grid-template-columns: 1fr;
  }

  .faq-grid {
    grid-template-columns: 1fr;
  }

  .faq-copy {
    position: static;
  }
}

@media (max-width: 860px) {
  .nav {
    height: 68px;
  }

  .nav-links {
    position: fixed;
    top: 80px;
    left: 16px;
    right: 16px;
    z-index: 99;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px;
    border: 1px solid var(--line-strong);
    border-radius: 16px;
    background: rgba(10, 12, 15, 0.97);
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.9);
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .nav-links.open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .nav-links a {
    padding: 13px 14px;
    border-radius: 10px;
    font-size: 14px;
  }

  .nav-links a:hover {
    background: rgba(255, 255, 255, 0.04);
  }

  .nav-links a::after {
    display: none;
  }

  .menu-btn {
    display: inline-flex;
  }

  section[id] {
    scroll-margin-top: 84px;
  }
}

@media (max-width: 620px) {
  .hero {
    padding-top: 112px;
  }

  .hero h1 {
    font-size: clamp(42px, 12vw, 56px);
  }

  .badge {
    font-size: 9.5px;
    letter-spacing: 0.1em;
  }

  .nav-actions .btn-ghost {
    display: none;
  }

  .chip {
    font-size: 10px;
    padding: 8px 10px;
  }

  .chip-fps {
    top: -14px;
    right: 12px;
  }

  .chip-profile {
    bottom: 16px;
    left: -6px;
  }

  .chip-mode {
    display: none;
  }

  .app-window {
    transform: none;
  }

  .spec-list {
    grid-template-columns: 1fr;
  }

  .cta-panel {
    border-radius: 22px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media (hover: none) {
  .app-window {
    transform: none;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}