:root {
  color-scheme: dark;
  --bg: #041119;
  --bg-deep: #020b10;
  --panel: #081d28;
  --panel-raised: #0b2634;
  --panel-soft: rgba(10, 35, 48, 0.72);
  --line: rgba(92, 174, 212, 0.17);
  --line-strong: rgba(77, 191, 244, 0.38);
  --cyan: #00aaff;
  --cyan-light: #62d0ff;
  --cyan-dark: #007bb9;
  --green: #22e6a4;
  --violet: #846cff;
  --text: #eef8fc;
  --muted: #9db8c5;
  --quiet: #668795;
  --danger: #ff6f86;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --max: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg-deep);
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 4%, rgba(0, 170, 255, 0.13), transparent 27rem),
    radial-gradient(circle at 12% 40%, rgba(132, 108, 255, 0.08), transparent 28rem),
    var(--bg);
  font-family: "Segoe UI Variable", "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(rgba(89, 177, 216, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(89, 177, 216, 0.035) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

body::after {
  position: fixed;
  top: var(--mouse-y, 18%);
  left: var(--mouse-x, 75%);
  z-index: -1;
  width: 36rem;
  height: 36rem;
  content: "";
  pointer-events: none;
  background: rgba(0, 170, 255, 0.075);
  border-radius: 50%;
  filter: blur(110px);
  transform: translate(-50%, -50%);
  transition: top 0.45s ease-out, left 0.45s ease-out;
}

::selection {
  color: #fff;
  background: rgba(0, 170, 255, 0.52);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  font: inherit;
}

img,
svg {
  display: block;
  max-width: 100%;
}

.shell {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  top: 18px;
  right: 0;
  left: 0;
  z-index: 100;
}

.nav-shell {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: 68px;
  padding: 0 12px 0 20px;
  background: rgba(4, 17, 25, 0.78);
  border: 1px solid rgba(91, 174, 212, 0.2);
  border-radius: 18px;
  box-shadow: 0 18px 58px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(22px) saturate(130%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 178px;
}

.brand img {
  width: 156px;
  height: 48px;
  object-fit: contain;
  object-position: left center;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.nav-link {
  padding: 10px 13px;
  color: var(--muted);
  border-radius: 10px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: color 180ms ease, background 180ms ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--text);
  background: rgba(95, 197, 244, 0.09);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-support {
  padding: 10px 14px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.nav-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 17px;
  background: linear-gradient(135deg, var(--cyan), #0787d2);
  border: 1px solid rgba(121, 216, 255, 0.55);
  border-radius: 11px;
  box-shadow: 0 10px 30px rgba(0, 170, 255, 0.19);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  transition: transform 180ms ease, filter 180ms ease;
}

.nav-download:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  background: rgba(95, 197, 244, 0.08);
  border: 1px solid var(--line);
  border-radius: 11px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
  border-radius: 2px;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(540px, 1.16fr);
  align-items: center;
  gap: clamp(36px, 4vw, 64px);
  min-height: 780px;
  padding-top: 112px;
  padding-bottom: 48px;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  color: #a9ddf5;
  background: rgba(0, 170, 255, 0.08);
  border: 1px solid rgba(56, 190, 255, 0.24);
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(34, 230, 164, 0.08), 0 0 14px rgba(34, 230, 164, 0.8);
}

.hero h1,
.page-hero h1 {
  max-width: 720px;
  margin: 24px 0 0;
  font-size: clamp(2.9rem, 4.8vw, 4.65rem);
  font-weight: 760;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.hero h1 .accent,
.page-hero h1 .accent {
  color: transparent;
  background: linear-gradient(115deg, #fff 2%, var(--cyan-light) 48%, var(--cyan) 92%);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-lead,
.page-lead {
  max-width: 620px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.4vw, 1.18rem);
  line-height: 1.65;
}

.hero-actions,
.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 22px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.035em;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.button::after {
  position: absolute;
  top: -50%;
  left: -90%;
  width: 45%;
  height: 200%;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
  transform: rotate(18deg);
  transition: left 520ms ease;
}

.button:hover::after {
  left: 145%;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, #04aefe, #087ec4);
  border-color: rgba(120, 218, 255, 0.65);
  box-shadow: 0 14px 38px rgba(0, 170, 255, 0.22);
}

.button-primary:hover {
  box-shadow: 0 18px 50px rgba(0, 170, 255, 0.3);
}

.button-secondary {
  color: var(--text);
  background: rgba(10, 35, 48, 0.66);
}

.button-secondary:hover {
  background: rgba(16, 52, 70, 0.85);
  border-color: rgba(98, 208, 255, 0.52);
}

.button-muted {
  color: var(--muted);
  background: rgba(7, 26, 36, 0.78);
  border-color: var(--line);
}

.button[aria-disabled="true"] {
  cursor: default;
  opacity: 0.78;
}

.button[aria-disabled="true"]:hover {
  transform: none;
}

.hero-note {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 20px;
  color: var(--quiet);
  font-size: 0.78rem;
}

.hero-note span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-note span::before {
  width: 5px;
  height: 5px;
  content: "";
  background: var(--cyan);
  border-radius: 50%;
}

.monitor-stage {
  position: relative;
  perspective: 1400px;
}

.monitor-stage::before {
  position: absolute;
  inset: 12% -8% -10% 8%;
  z-index: -1;
  content: "";
  background: linear-gradient(135deg, rgba(0, 170, 255, 0.2), rgba(132, 108, 255, 0.08));
  border-radius: 38%;
  filter: blur(75px);
}

.app-window {
  position: relative;
  overflow: hidden;
  background: linear-gradient(155deg, #08202c 0%, #04131c 62%, #061b26 100%);
  border: 1px solid rgba(98, 208, 255, 0.34);
  border-radius: 24px;
  box-shadow: 0 36px 100px rgba(0, 0, 0, 0.5), 0 0 70px rgba(0, 170, 255, 0.07), inset 0 1px rgba(255, 255, 255, 0.045);
  transform: rotateY(-4deg) rotateX(1.6deg);
  transform-style: preserve-3d;
  transition: transform 220ms ease-out, border-color 220ms ease, box-shadow 220ms ease;
}

.app-window:hover {
  border-color: rgba(98, 208, 255, 0.62);
  box-shadow: 0 42px 110px rgba(0, 0, 0, 0.52), 0 0 90px rgba(0, 170, 255, 0.14), inset 0 1px rgba(255, 255, 255, 0.06);
}

.app-window::before {
  position: absolute;
  inset: 0;
  z-index: 5;
  content: "";
  pointer-events: none;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.035) 48%, transparent 70%);
}

.app-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 46px;
  padding: 0 17px;
  background: rgba(3, 15, 23, 0.88);
  border-bottom: 1px solid rgba(92, 174, 212, 0.13);
}

.app-title {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.app-controls {
  display: flex;
  gap: 7px;
}

.app-controls i {
  width: 8px;
  height: 8px;
  background: #345563;
  border-radius: 50%;
}

.app-body {
  display: grid;
  grid-template-columns: 126px 1fr;
  min-height: 454px;
}

.app-sidebar {
  padding: 22px 13px;
  background: linear-gradient(180deg, rgba(8, 31, 43, 0.96), rgba(4, 20, 29, 0.94));
  border-right: 1px solid rgba(92, 174, 212, 0.12);
}

.mini-logo {
  width: 96px;
  height: 54px;
  margin: 0 auto 24px;
  object-fit: contain;
}

.side-item {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 7px;
  padding: 9px 10px;
  color: #7895a3;
  border-radius: 8px;
  font-size: 0.61rem;
  font-weight: 700;
}

.side-item::before {
  width: 6px;
  height: 6px;
  content: "";
  border: 1px solid currentColor;
  border-radius: 2px;
}

.side-item.active {
  color: #dff5ff;
  background: rgba(0, 170, 255, 0.16);
}

.app-main {
  padding: 20px;
}

.app-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.app-heading strong {
  display: block;
  font-size: 1.18rem;
}

.app-heading span {
  color: var(--quiet);
  font-size: 0.63rem;
}

.service-chip {
  display: flex;
  align-items: center;
  gap: 7px;
  color: #a9f1d5 !important;
}

.service-chip::before {
  width: 7px;
  height: 7px;
  content: "";
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 11px rgba(34, 230, 164, 0.75);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.metric {
  min-width: 0;
  padding: 13px;
  background: linear-gradient(145deg, rgba(12, 47, 63, 0.92), rgba(7, 29, 40, 0.9));
  border: 1px solid rgba(83, 169, 207, 0.16);
  border-radius: 13px;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.025);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.metric:hover {
  border-color: rgba(98, 208, 255, 0.42);
  box-shadow: 0 12px 30px rgba(0, 170, 255, 0.09), inset 0 1px rgba(255, 255, 255, 0.045);
  transform: translateY(-2px);
}

.metric-label {
  color: var(--quiet);
  font-size: 0.56rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.metric-value {
  margin-top: 7px;
  font-size: 1.2rem;
  font-weight: 750;
  letter-spacing: -0.04em;
}

.metric-meta {
  margin-top: 3px;
  color: #6f909f;
  font-size: 0.55rem;
}

.activity-panel {
  margin-top: 10px;
  padding: 14px;
  background: linear-gradient(155deg, rgba(8, 34, 47, 0.88), rgba(5, 23, 33, 0.9));
  border: 1px solid rgba(83, 169, 207, 0.16);
  border-radius: 12px;
}

.activity-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #8cabb9;
  font-size: 0.57rem;
  font-weight: 800;
  letter-spacing: 0.09em;
}

.legend {
  display: flex;
  gap: 9px;
  letter-spacing: 0;
  font-weight: 600;
}

.legend span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.legend i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.chart-box {
  position: relative;
  height: 122px;
  margin-top: 12px;
  overflow: hidden;
  background-image:
    linear-gradient(rgba(91, 174, 212, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 174, 212, 0.08) 1px, transparent 1px);
  background-size: 100% 34px, 48px 100%;
  border-radius: 7px;
}

.chart-box svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.chart-line {
  fill: none;
  stroke: var(--cyan);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
  filter: drop-shadow(0 0 5px rgba(0, 170, 255, 0.65));
}

.chart-line.secondary {
  stroke: var(--violet);
  opacity: 0.78;
  filter: drop-shadow(0 0 4px rgba(132, 108, 255, 0.5));
}

.process-strip {
  display: grid;
  grid-template-columns: 1.2fr 0.7fr 0.7fr;
  gap: 10px;
  margin-top: 10px;
}

.process-strip div {
  padding: 10px 12px;
  color: #8ba7b4;
  background: rgba(9, 37, 50, 0.72);
  border: 1px solid rgba(83, 169, 207, 0.13);
  border-radius: 9px;
  font-size: 0.57rem;
}

.float-chip {
  position: absolute;
  z-index: 8;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: rgba(7, 28, 38, 0.9);
  border: 1px solid rgba(98, 208, 255, 0.25);
  border-radius: 13px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(16px);
  animation: float 4s ease-in-out infinite;
}

.float-chip strong {
  display: block;
  font-size: 0.72rem;
}

.float-chip span {
  display: block;
  color: var(--quiet);
  font-size: 0.58rem;
}

.float-chip .chip-icon {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  color: var(--cyan-light);
  background: rgba(0, 170, 255, 0.12);
  border-radius: 9px;
  font-size: 0.72rem;
  font-weight: 800;
}

.chip-one {
  top: 74px;
  right: -52px;
}

.chip-two {
  bottom: 48px;
  left: -46px;
  animation-delay: -1.7s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.signal-strip {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: rgba(5, 21, 29, 0.68);
}

.signal-track {
  display: flex;
  width: max-content;
  animation: ticker 24s linear infinite;
}

.signal-group {
  display: flex;
  align-items: center;
  gap: 38px;
  padding: 16px 19px;
}

.signal-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #87a5b3;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.signal-item b {
  color: var(--cyan-light);
}

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

.section {
  padding: 88px 0;
}

.section-compact {
  padding: 62px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 34px;
}

.section-kicker {
  margin-bottom: 12px;
  color: var(--cyan-light);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.section h2,
.section-compact h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2rem, 3.7vw, 3.5rem);
  font-weight: 730;
  letter-spacing: -0.05em;
  line-height: 1.02;
}

.section-head > p {
  max-width: 420px;
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.bento-card {
  position: relative;
  min-height: 230px;
  padding: 25px;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(12, 44, 59, 0.82), rgba(7, 27, 37, 0.92));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform 220ms ease, border-color 220ms ease, background 220ms ease;
}

.bento-card:hover {
  background: linear-gradient(145deg, rgba(14, 50, 67, 0.9), rgba(8, 30, 41, 0.96));
  border-color: rgba(98, 208, 255, 0.38);
  transform: translateY(-5px);
}

.bento-card.large {
  grid-column: span 7;
}

.bento-card.medium {
  grid-column: span 5;
}

.bento-card.third {
  grid-column: span 4;
}

.card-index {
  color: var(--cyan-light);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.bento-card h3 {
  margin: 34px 0 10px;
  font-size: 1.45rem;
  letter-spacing: -0.025em;
}

.bento-card p {
  max-width: 500px;
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.card-visual {
  position: absolute;
  right: 22px;
  bottom: 18px;
  display: flex;
  align-items: flex-end;
  gap: 5px;
  height: 62px;
  opacity: 0.72;
}

.card-visual i {
  width: 7px;
  height: var(--h);
  background: linear-gradient(to top, rgba(0, 170, 255, 0.22), var(--cyan));
  border-radius: 5px 5px 2px 2px;
  animation: bars 2.4s ease-in-out infinite alternate;
  animation-delay: var(--d);
}

@keyframes bars {
  to { opacity: 0.45; transform: scaleY(0.55); transform-origin: bottom; }
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.mode-card {
  padding: 26px;
  background: rgba(8, 30, 41, 0.68);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.mode-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mode-number {
  color: var(--quiet);
  font-size: 0.76rem;
  font-weight: 800;
}

.mode-pill {
  padding: 5px 9px;
  color: var(--cyan-light);
  background: rgba(0, 170, 255, 0.1);
  border: 1px solid rgba(0, 170, 255, 0.18);
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.mode-card h3 {
  margin: 34px 0 10px;
  font-size: 1.38rem;
}

.mode-card p {
  margin: 0;
  color: var(--muted);
}

.download-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 38px;
  padding: clamp(34px, 6vw, 68px);
  overflow: hidden;
  background:
    linear-gradient(120deg, rgba(0, 170, 255, 0.13), transparent 47%),
    rgba(8, 31, 42, 0.88);
  border: 1px solid rgba(86, 194, 244, 0.24);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.download-panel::after {
  position: absolute;
  right: -140px;
  bottom: -220px;
  width: 420px;
  height: 420px;
  content: "";
  background: rgba(0, 170, 255, 0.19);
  border-radius: 50%;
  filter: blur(90px);
}

.download-copy {
  position: relative;
  z-index: 1;
}

.download-copy h2 {
  max-width: 690px;
}

.download-copy p {
  max-width: 650px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.download-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 22px;
  color: var(--quiet);
  font-size: 0.78rem;
}

.download-action {
  position: relative;
  z-index: 1;
  text-align: center;
}

.download-action small {
  display: block;
  margin-top: 10px;
  color: var(--quiet);
  font-size: 0.7rem;
}

.page-hero {
  min-height: 0;
  padding-top: 132px;
  padding-bottom: 8px;
}

.page-hero + .section-compact {
  padding-top: 36px;
}

.page-hero .hero-note {
  margin-top: 26px;
}

.page-hero h1 {
  max-width: 880px;
  font-size: clamp(2.8rem, 4.5vw, 4.4rem);
}

.page-hero .page-lead {
  max-width: 720px;
}

.version-rail {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 36px;
  margin-top: 18px;
}

.rail-tabs {
  position: sticky;
  top: 118px;
  align-self: start;
}

.rail-tab {
  display: block;
  margin-bottom: 8px;
  padding: 11px 13px;
  color: var(--quiet);
  border-left: 2px solid rgba(97, 205, 255, 0.16);
  border-radius: 0 10px 10px 0;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.rail-tab:hover {
  color: var(--text);
  background: rgba(0, 170, 255, 0.07);
  border-left-color: rgba(98, 208, 255, 0.5);
  transform: translateX(3px);
}

.rail-tab.active {
  color: var(--cyan-light);
  background: linear-gradient(90deg, rgba(0, 170, 255, 0.14), rgba(0, 170, 255, 0.025));
  border-left-color: var(--cyan);
  box-shadow: inset 12px 0 24px -18px var(--cyan);
}

.version-block {
  position: relative;
  padding: 34px;
  background: rgba(8, 30, 41, 0.68);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  scroll-margin-top: 126px;
  transition: border-color 240ms ease, box-shadow 240ms ease, transform 240ms ease;
}

.version-block + .version-block {
  margin-top: 14px;
}

.version-block h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3vw, 3rem);
}

.version-block > p {
  max-width: 720px;
  margin: 14px 0 0;
  color: var(--muted);
}

.change-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 22px;
}

.change-item {
  padding: 18px;
  background: rgba(5, 22, 31, 0.72);
  border: 1px solid rgba(84, 173, 214, 0.13);
  border-radius: 13px;
}

.change-item strong {
  display: block;
  font-size: 0.95rem;
}

.change-item span {
  display: block;
  margin-top: 7px;
  color: var(--quiet);
  font-size: 0.85rem;
}

.architecture {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.architecture-card {
  position: relative;
  padding: 28px;
  background: rgba(5, 23, 32, 0.86);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.architecture-card:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -17px;
  z-index: 2;
  width: 17px;
  height: 1px;
  content: "";
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.architecture-card b {
  display: block;
  color: var(--cyan-light);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
}

.architecture-card strong {
  display: block;
  margin-top: 18px;
  font-size: 1.1rem;
}

.architecture-card p {
  margin: 8px 0 0;
  color: var(--quiet);
  font-size: 0.85rem;
}

.support-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(350px, 0.9fr);
  gap: 24px;
  align-items: start;
}

.support-main,
.support-panel {
  padding: clamp(28px, 5vw, 52px);
  background: rgba(8, 30, 41, 0.76);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
}

.support-main h2,
.support-panel h2 {
  font-size: clamp(2rem, 3vw, 3.2rem);
}

.support-main > p,
.support-panel > p {
  color: var(--muted);
}

.funding-list {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}

.funding-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: center;
  padding: 16px;
  background: rgba(4, 18, 26, 0.55);
  border: 1px solid rgba(88, 177, 218, 0.12);
  border-radius: 13px;
}

.funding-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--cyan-light);
  background: rgba(0, 170, 255, 0.1);
  border-radius: 11px;
  font-size: 0.7rem;
  font-weight: 900;
}

.funding-item strong,
.funding-item span {
  display: block;
}

.funding-item span {
  margin-top: 3px;
  color: var(--quiet);
  font-size: 0.82rem;
}

.donation-card {
  position: sticky;
  top: 114px;
  overflow: hidden;
}

.donation-card::before {
  position: absolute;
  top: -110px;
  right: -100px;
  width: 260px;
  height: 260px;
  content: "";
  background: rgba(0, 170, 255, 0.17);
  border-radius: 50%;
  filter: blur(70px);
}

.donation-status {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  color: #a8c3cf;
  background: rgba(4, 17, 25, 0.58);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.donation-status::before {
  width: 7px;
  height: 7px;
  content: "";
  background: #f0b44d;
  border-radius: 50%;
}

.donation-card .button {
  width: 100%;
  margin-top: 24px;
}

.donation-note {
  margin-top: 17px !important;
  color: var(--quiet) !important;
  font-size: 0.8rem;
}

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

.faq-item {
  padding: 25px;
  background: rgba(8, 30, 41, 0.65);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.faq-item h3 {
  margin: 0;
  font-size: 1rem;
}

.faq-item p {
  margin: 10px 0 0;
  color: var(--quiet);
  font-size: 0.88rem;
}

.site-footer {
  padding: 38px 0 42px;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px;
  align-items: center;
}

.footer-brand img {
  width: 142px;
  height: 44px;
  object-fit: contain;
  object-position: left center;
}

.footer-brand p {
  margin: 8px 0 0;
  color: var(--quiet);
  font-size: 0.78rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 22px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

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

.glow-surface {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  transition-property: transform, border-color, background, box-shadow;
  transition-duration: 220ms;
  transition-timing-function: ease;
}

.glow-surface:hover {
  border-color: rgba(98, 208, 255, 0.42);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.24), 0 0 36px rgba(0, 170, 255, 0.07);
}

.cursor-glow {
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
  width: 360px;
  height: 360px;
  pointer-events: none;
  background: radial-gradient(circle, rgba(0, 170, 255, 0.2) 0%, rgba(0, 170, 255, 0.07) 34%, transparent 70%);
  opacity: 0;
  transform: translate(calc(var(--glow-x, -500px) - 50%), calc(var(--glow-y, -500px) - 50%));
  transition: opacity 220ms ease;
}

.glow-surface:hover > .cursor-glow {
  opacity: 1;
}

.version-block.focus-pulse {
  animation: section-focus 760ms cubic-bezier(0.2, 0.72, 0.2, 1);
}

@keyframes section-focus {
  0% {
    border-color: rgba(0, 170, 255, 0.18);
    box-shadow: none;
    transform: scale(0.985);
  }
  45% {
    border-color: rgba(98, 208, 255, 0.72);
    box-shadow: 0 0 0 1px rgba(0, 170, 255, 0.12), 0 22px 70px rgba(0, 170, 255, 0.13);
    transform: scale(1.006);
  }
  100% {
    border-color: var(--line);
    box-shadow: none;
    transform: scale(1);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 90ms; }
.reveal-delay-2 { transition-delay: 180ms; }
.reveal-delay-3 { transition-delay: 270ms; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 170px;
  }

  .hero-copy {
    max-width: 770px;
  }

  .monitor-stage {
    max-width: 760px;
    margin-inline: auto;
  }

  .app-window {
    transform: none;
  }

  .bento-card.large,
  .bento-card.medium {
    grid-column: span 6;
  }

  .bento-card.third {
    grid-column: span 4;
  }

  .support-layout {
    grid-template-columns: 1fr;
  }

  .donation-card {
    position: relative;
    top: auto;
  }
}

@media (max-width: 820px) {
  .shell {
    width: min(100% - 28px, var(--max));
  }

  .site-header {
    top: 10px;
  }

  .nav-shell {
    grid-template-columns: 1fr auto;
    padding-left: 13px;
  }

  .brand img {
    width: 140px;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links,
  .nav-actions .nav-support,
  .nav-actions .nav-download {
    display: none;
  }

  .nav-links.open {
    position: absolute;
    top: 76px;
    right: 0;
    left: 0;
    display: grid;
    padding: 12px;
    background: rgba(4, 17, 25, 0.97);
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow);
  }

  .nav-links.open .nav-link {
    padding: 13px 14px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(2.75rem, 11.5vw, 4.4rem);
  }

  .section-head {
    display: block;
  }

  .section-head > p {
    margin-top: 20px;
  }

  .bento-card.large,
  .bento-card.medium,
  .bento-card.third {
    grid-column: span 12;
  }

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

  .download-panel {
    grid-template-columns: 1fr;
  }

  .download-action {
    text-align: left;
  }

  .version-rail {
    grid-template-columns: 1fr;
  }

  .rail-tabs {
    position: static;
    display: flex;
    gap: 8px;
    overflow-x: auto;
  }

  .rail-tab {
    min-width: max-content;
    border-bottom: 2px solid rgba(97, 205, 255, 0.16);
    border-left: 0;
  }

  .rail-tab.active {
    border-bottom-color: var(--cyan);
  }

  .rail-tab:hover {
    transform: translateY(-2px);
  }

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

  .architecture-card:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -17px;
    width: 1px;
    height: 17px;
  }
}

@media (max-width: 600px) {
  .hero {
    padding-top: 138px;
  }

  .page-hero {
    min-height: auto;
    padding-top: 124px;
  }

  .hero-actions,
  .page-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .app-body {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .app-sidebar,
  .float-chip {
    display: none;
  }

  .app-main {
    padding: 15px;
  }

  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric:last-child {
    grid-column: auto;
  }

  .process-strip {
    grid-template-columns: 1fr;
  }

  .section,
  .section-compact {
    padding: 82px 0;
  }

  .bento-card,
  .mode-card,
  .version-block,
  .support-main,
  .support-panel {
    padding: 24px;
  }

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

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

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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