:root {
  --bg: #07090d;
  --bg-2: #0c0f15;
  --panel: #10141c;
  --panel-2: #161b25;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --text: #eef2f8;
  --muted: #98a2b5;
  --dim: #6b7487;
  --accent: #4f8cff;
  --accent-2: #8b5cf6;
  --ok: #3fb950;
  --warn: #e3b341;
  --err: #f0626b;
  --radius: 16px;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', ui-monospace, Menlo, Consolas, monospace;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

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

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1000px 640px at 78% -8%, rgba(79, 140, 255, 0.2), transparent 60%),
    radial-gradient(800px 600px at -10% 10%, rgba(139, 92, 246, 0.12), transparent 60%),
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px) 0 0 / 56px 56px;
  mask-image: linear-gradient(to bottom, #000 0, #000 900px, transparent 1400px);
}

a {
  color: var(--accent);
  text-decoration: none;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 6px;
}

.ic {
  width: 20px;
  height: 20px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ic.sm {
  width: 16px;
  height: 16px;
}

.ic.ok {
  color: var(--ok);
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(7, 9, 13, 0.72);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav-in,
.foot-in {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.nav nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14.5px;
}

.nav nav a:not(.btn) {
  color: var(--muted);
  transition: color 0.15s;
}

.nav nav a:not(.btn):hover {
  color: var(--text);
}

.nav .lang {
  font-weight: 700;
  font-size: 12.5px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 3px 10px;
}

.nav .gh {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav .gh img {
  border-radius: 4px;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

section {
  padding: 96px 0;
}

h1 {
  font-size: clamp(42px, 5.6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 18px 0 22px;
  font-weight: 850;
}

h2 {
  font-size: clamp(30px, 4.2vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
  font-weight: 800;
}

h3 {
  margin: 0 0 6px;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.grad {
  background: linear-gradient(100deg, #6ea8ff 0%, #8b5cf6 55%, #f0626b 110%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--muted);
  max-width: 32em;
  margin: 0;
}

.sub {
  color: var(--muted);
  font-size: 18px;
  max-width: 40em;
  margin: 0 auto;
}

.muted {
  color: var(--muted);
}

.center {
  text-align: center;
}

.head {
  text-align: center;
  margin-bottom: 48px;
}

.kicker {
  display: inline-block;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.kicker.warn {
  color: var(--warn);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
  color: var(--text);
  font-weight: 600;
  font-size: 14.5px;
  transition:
    transform 0.15s,
    border-color 0.15s,
    background 0.15s,
    box-shadow 0.15s;
}

.btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.btn.sm {
  padding: 7px 14px;
  font-size: 14px;
}

.btn.lg {
  padding: 14px 24px;
  font-size: 16px;
  border-radius: 12px;
}

.btn.primary {
  background: linear-gradient(180deg, #5b95ff, #3d78f0);
  border-color: transparent;
  color: #fff;
  box-shadow:
    0 8px 24px rgba(79, 140, 255, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn.primary:hover {
  box-shadow:
    0 12px 32px rgba(79, 140, 255, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.03);
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 34px 0 18px;
}

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

/* Hero */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.15fr);
  gap: 48px;
  align-items: center;
  padding: 88px 0 64px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 600;
  color: #c9d4ea;
  padding: 6px 14px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

.eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 4px rgba(63, 185, 80, 0.18);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  50% {
    box-shadow: 0 0 0 7px rgba(63, 185, 80, 0.05);
  }
}

.meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--dim);
  margin: 0;
}

.hero-visual {
  position: relative;
  perspective: 1800px;
}

.glow {
  position: absolute;
  inset: 8% 4% 0 10%;
  background: radial-gradient(closest-side, rgba(79, 140, 255, 0.45), rgba(139, 92, 246, 0.2) 60%, transparent);
  filter: blur(40px);
  z-index: -1;
}

.window {
  border-radius: 14px;
  overflow: hidden;
  background: #16181d;
  border: 1px solid var(--line-2);
  box-shadow:
    0 50px 100px -20px rgba(0, 0, 0, 0.7),
    0 30px 60px -30px rgba(0, 0, 0, 0.6);
}

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

.bar {
  height: 30px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 12px;
  background: #1d2028;
  border-bottom: 1px solid rgba(0, 0, 0, 0.4);
}

.bar i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #ff5f57;
}

.bar i:nth-child(2) {
  background: #febc2e;
}

.bar i:nth-child(3) {
  background: #28c840;
}

.bar span {
  flex: 1;
  text-align: center;
  margin-right: 52px;
  font-size: 12px;
  color: var(--dim);
}

.tilt {
  transform: rotateY(-9deg) rotateX(4deg);
  transform-origin: left center;
  transition: transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.hero-visual:hover .tilt {
  transform: rotateY(-3deg) rotateX(1deg);
}

.chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  font-size: 13.5px;
  font-weight: 600;
  background: rgba(16, 20, 28, 0.88);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line-2);
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  white-space: nowrap;
  animation: float 6s ease-in-out infinite;
}

.chip-a {
  left: -28px;
  bottom: 12%;
}

.chip-b {
  right: -10px;
  top: -18px;
  animation-delay: -3s;
}

@keyframes float {
  50% {
    transform: translateY(-8px);
  }
}

.pill {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 5px;
}

.pill.err {
  color: var(--err);
  background: rgba(240, 98, 107, 0.14);
}

/* Works with */
.works {
  padding: 8px 0 24px;
  text-align: center;
}

.works p {
  margin: 0 0 16px;
  color: var(--dim);
  font-size: 14px;
}

.works ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 32px;
  font-weight: 700;
  font-size: 17px;
  color: #7f8aa0;
}

/* Before / after */
.ba {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.ba-side {
  position: relative;
}

.ba-label {
  position: absolute;
  top: -13px;
  left: 18px;
  z-index: 2;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 999px;
  background: #3a1d22;
  color: #ff9aa1;
  border: 1px solid rgba(240, 98, 107, 0.4);
}

.ba-label.good {
  background: #13233f;
  color: #9cc0ff;
  border-color: rgba(79, 140, 255, 0.45);
}

.ba-arrow {
  font-size: 34px;
  color: var(--dim);
}

.term {
  border-radius: 14px;
  border: 1px solid var(--line-2);
  background: #050608;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 12.5px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
}

.term-bar {
  padding: 14px 18px;
  color: #e6edf3;
  border-bottom: 1px solid #161a22;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.term-body {
  height: 340px;
  overflow: hidden;
  padding: 0 18px;
  mask-image: linear-gradient(transparent, #000 12%, #000 85%, transparent);
}

.term-scroll {
  animation: scroll 14s linear infinite;
}

.term-scroll p {
  margin: 0;
  line-height: 1.75;
  color: #5d6574;
  white-space: nowrap;
}

.term-scroll .r {
  color: #c9797a;
}

.term-scroll .y {
  color: #b39a5a;
}

@keyframes scroll {
  to {
    transform: translateY(-50%);
  }
}

.zoom {
  width: 100%;
  background-repeat: no-repeat;
  background-color: #16181d;
}

/* Video */
.video {
  text-align: center;
}

.video-frame {
  width: min(640px, 100%);
  margin: 32px auto 0;
  padding: 10px;
  border-radius: 24px;
  background: linear-gradient(140deg, rgba(79, 140, 255, 0.5), rgba(139, 92, 246, 0.25) 50%, rgba(255, 255, 255, 0.06));
  box-shadow: 0 40px 100px -20px rgba(79, 140, 255, 0.35);
}

.video-frame video {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 16px;
  background: #0b0d12;
}

/* Feature rows */
.features {
  display: flex;
  flex-direction: column;
  gap: 120px;
}

.row {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 64px;
  align-items: center;
}

.row.flip {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
}

.row.flip .row-text {
  order: 2;
}

.row-text p {
  color: var(--muted);
  font-size: 17px;
  margin: 0 0 20px;
}

.checks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.checks li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 15px;
  color: #c9d1df;
}

.checks .ic {
  color: var(--ok);
  margin-top: 4px;
}

.row-visual {
  position: relative;
  padding-bottom: 40px;
}

.callout {
  position: absolute;
  border-radius: 12px;
  border: 1px solid rgba(79, 140, 255, 0.55);
  box-shadow:
    0 0 0 6px rgba(79, 140, 255, 0.1),
    0 30px 60px rgba(0, 0, 0, 0.65);
}

.callout.wide {
  width: 78%;
  right: -4%;
  bottom: 0;
}

.callout.tall {
  width: 44%;
  right: -6%;
  bottom: -4%;
}

.row.flip .callout.tall {
  right: auto;
  left: -5%;
}

/* More grid */
.more h2 {
  text-align: center;
  margin-bottom: 40px;
}

.more-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.mini {
  padding: 22px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line);
  transition:
    border-color 0.2s,
    transform 0.2s;
}

.mini:hover {
  border-color: var(--line-2);
  transform: translateY(-2px);
}

.mini .ic,
.card .ic {
  width: 26px;
  height: 26px;
  color: var(--accent);
  margin-bottom: 14px;
}

.mini p,
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
}

/* Security */
.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.card {
  padding: 26px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(227, 179, 65, 0.06), transparent 60%), var(--panel);
  border: 1px solid rgba(227, 179, 65, 0.22);
}

.card .ic {
  color: var(--warn);
}

.more-link {
  display: inline-block;
  margin-top: 28px;
  font-weight: 600;
}

/* Download */
.os-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  align-items: start;
}

.os {
  position: relative;
  padding: 26px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  min-width: 0;
}

.os h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  margin-bottom: 4px;
}

.os.mine {
  border-color: rgba(79, 140, 255, 0.7);
  background: linear-gradient(180deg, rgba(79, 140, 255, 0.08), transparent 50%), var(--panel);
  box-shadow: 0 30px 70px -20px rgba(79, 140, 255, 0.35);
}

.badge {
  display: none;
  position: absolute;
  top: -11px;
  right: 20px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
}

.os.mine .badge {
  display: inline-block;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0;
}

.note {
  font-size: 13px;
  color: var(--dim);
  margin: 10px 0;
}

.store img {
  display: block;
  margin: 14px 0 4px;
}

.cmd {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 10px 0;
  background: #0a0d13;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 6px 6px 6px 12px;
}

.cmd code {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
  font-size: 12.5px;
  background: none;
  border: 0;
  padding: 4px 0;
  scrollbar-width: none;
}

.copy {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 7px;
  padding: 5px 10px;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

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

.copy.done {
  color: var(--ok);
  border-color: var(--ok);
}

.req {
  margin-top: 28px;
  display: grid;
  gap: 18px;
  padding: 26px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
}

.req p {
  margin: 4px 0 0;
  font-size: 14px;
}

.req-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.os-name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 14px;
}

/* FAQ */
.faq h2 {
  text-align: center;
  margin-bottom: 36px;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

details {
  border-radius: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 4px 22px;
}

details[open] {
  border-color: var(--line-2);
}

summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-weight: 650;
  font-size: 17px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '+';
  color: var(--accent);
  font-size: 22px;
  line-height: 1;
  transition: transform 0.2s;
}

details[open] summary::after {
  transform: rotate(45deg);
}

details p {
  margin: 0 0 18px;
  color: var(--muted);
}

/* CTA + footer */
.cta {
  text-align: center;
  margin: 40px 0 80px;
  padding: 72px 24px;
  border-radius: 28px;
  border: 1px solid var(--line-2);
  background:
    radial-gradient(600px 300px at 50% 0%, rgba(79, 140, 255, 0.25), transparent 70%),
    var(--panel);
}

.cta img {
  border-radius: 20px;
  margin-bottom: 18px;
  filter: drop-shadow(0 16px 30px rgba(79, 140, 255, 0.4));
}

footer {
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.foot-in {
  padding: 28px 16px 40px;
  flex-wrap: wrap;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

footer nav a {
  color: var(--muted);
}

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

/* Scroll reveal (only when JS runs; respects reduced motion) */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.7s ease,
    transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.js .reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .chip,
  .term-scroll,
  .eyebrow .dot {
    animation: none;
  }

  .tilt {
    transform: none;
  }
}

@media (max-width: 1000px) {
  .hero,
  .row,
  .row.flip,
  .ba {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 56px;
    gap: 64px;
  }

  .row.flip .row-text {
    order: 0;
  }

  .ba-arrow {
    transform: rotate(90deg);
    justify-self: center;
  }

  .more-grid,
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .os-grid,
  .req-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .features {
    gap: 88px;
  }

  .nav nav a[href^='#']:not(.btn) {
    display: none;
  }
}

@media (max-width: 600px) {
  section {
    padding: 64px 0;
  }

  .more-grid,
  .cards {
    grid-template-columns: minmax(0, 1fr);
  }

  .tilt {
    transform: none;
  }

  .chip-a {
    left: 8px;
    bottom: -18px;
  }

  .chip-b {
    right: 8px;
    top: -22px;
  }

  .callout.wide {
    width: 92%;
    right: 4%;
  }

  .callout.tall {
    width: 46%;
    right: 2%;
  }

  .row.flip .callout.tall {
    left: 2%;
  }

  .nav .gh img {
    display: none;
  }
}