:root {
  color-scheme: dark;
  --font-sans: "Inter", "SF Pro Text", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --bg-canvas: #060915;
  --bg-surface: rgba(16, 23, 41, 0.72);
  --bg-surface-strong: rgba(22, 30, 54, 0.86);
  --bg-elevated: rgba(13, 19, 34, 0.84);
  --bg-shell: #0a1226;

  --text-primary: #eef2ff;
  --text-secondary: #c6d0ee;
  --text-muted: #9ca8cd;

  --accent-1: #61dafb;
  --accent-2: #8f7dff;
  --accent-3: #40f8c5;
  --danger: #ff6b7a;
  --warning: #ffc96b;

  --line-soft: rgba(143, 163, 219, 0.28);
  --line-strong: rgba(176, 193, 241, 0.42);
  --glass-bg: rgba(17, 25, 45, 0.56);
  --glass-edge: rgba(183, 199, 245, 0.22);

  --shadow-sm: 0 8px 26px rgba(3, 9, 24, 0.34);
  --shadow-md: 0 18px 40px rgba(2, 8, 26, 0.44);
  --shadow-lg: 0 28px 70px rgba(0, 0, 0, 0.52);
  --shadow-glow: 0 0 0 1px rgba(97, 218, 251, 0.15), 0 18px 44px rgba(96, 154, 255, 0.32);

  --radius-xs: 10px;
  --radius-sm: 14px;
  --radius-md: 20px;
  --radius-lg: 30px;

  --max-content: 1180px;
  --header-height: 72px;

  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;

  --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-snappy: cubic-bezier(0.16, 1, 0.3, 1);

  --section-pad: clamp(3.6rem, 8vw, 7rem);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg-canvas: #060915;
  --bg-surface: rgba(16, 23, 41, 0.72);
  --bg-surface-strong: rgba(22, 30, 54, 0.86);
  --bg-elevated: rgba(13, 19, 34, 0.84);
  --bg-shell: #0a1226;
  --text-primary: #eef2ff;
  --text-secondary: #c6d0ee;
  --text-muted: #9ca8cd;
  --line-soft: rgba(143, 163, 219, 0.28);
  --line-strong: rgba(176, 193, 241, 0.42);
  --glass-bg: rgba(17, 25, 45, 0.56);
  --glass-edge: rgba(183, 199, 245, 0.22);
}

[data-theme="light"] {
  color-scheme: light;
  --bg-canvas: #f5f7ff;
  --bg-surface: rgba(255, 255, 255, 0.78);
  --bg-surface-strong: rgba(255, 255, 255, 0.88);
  --bg-elevated: rgba(255, 255, 255, 0.86);
  --bg-shell: #f1f5ff;

  --text-primary: #151d34;
  --text-secondary: #364a72;
  --text-muted: #5f739c;

  --line-soft: rgba(63, 91, 140, 0.18);
  --line-strong: rgba(72, 98, 146, 0.32);
  --glass-bg: rgba(255, 255, 255, 0.68);
  --glass-edge: rgba(70, 106, 168, 0.2);

  --shadow-sm: 0 8px 24px rgba(82, 102, 148, 0.14);
  --shadow-md: 0 18px 38px rgba(72, 95, 136, 0.18);
  --shadow-lg: 0 28px 62px rgba(58, 79, 125, 0.22);
  --shadow-glow: 0 0 0 1px rgba(97, 218, 251, 0.18), 0 16px 38px rgba(120, 142, 255, 0.2);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background:
    radial-gradient(1200px circle at 10% -10%, rgba(97, 218, 251, 0.18), transparent 45%),
    radial-gradient(900px circle at 85% 0%, rgba(143, 125, 255, 0.2), transparent 42%),
    var(--bg-canvas);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: clip;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
}

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

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 0.08rem 0.34rem;
  border-radius: 0.4rem;
  background: color-mix(in srgb, var(--bg-canvas) 35%, transparent);
  border: 1px solid color-mix(in srgb, var(--line-soft) 80%, transparent);
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent-1) 78%, white 22%);
  outline-offset: 2px;
}

#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: var(--progress-width, 0%);
  transform: scaleX(var(--progress-scale, 1));
  transform-origin: 0 50%;
  z-index: 1200;
  border-radius: 0 999px 999px 0;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2), var(--accent-3));
  box-shadow: 0 0 18px rgba(94, 174, 255, 0.72);
  transition: width 160ms linear, transform 160ms linear, opacity 260ms ease;
}

.ambient-bg,
.noise-layer,
.grid-layer,
.cursor-glow {
  pointer-events: none;
}

.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: -4;
  background:
    radial-gradient(42rem 30rem at 15% 12%, rgba(97, 218, 251, 0.19), transparent 60%),
    radial-gradient(34rem 26rem at 80% 18%, rgba(143, 125, 255, 0.22), transparent 62%),
    radial-gradient(38rem 28rem at 56% 88%, rgba(64, 248, 197, 0.16), transparent 65%);
  animation: ambient-float 18s linear infinite alternate;
}

.noise-layer {
  position: fixed;
  inset: 0;
  z-index: -3;
  opacity: 0.06;
  mix-blend-mode: soft-light;
  background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.3) 1px, transparent 0);
  background-size: 3px 3px;
}

.grid-layer {
  position: fixed;
  inset: 0;
  z-index: -2;
  opacity: 0.44;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, black 24%, transparent 92%);
  animation: grid-drift 28s linear infinite;
}

.cursor-glow {
  position: fixed;
  left: 0;
  top: 0;
  width: clamp(12rem, 26vw, 22rem);
  aspect-ratio: 1;
  border-radius: 999px;
  z-index: -1;
  opacity: 0.34;
  background: radial-gradient(circle, rgba(97, 218, 251, 0.42), rgba(143, 125, 255, 0.16) 45%, transparent 70%);
  filter: blur(18px);
  transform: translate3d(-50%, -50%, 0);
  transition: transform 180ms var(--ease-snappy), opacity 260ms ease;
  will-change: transform;
}

.cursor-glow.is-visible {
  opacity: 0.4;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg-canvas) 82%, transparent) 0%, transparent 100%);
  backdrop-filter: saturate(150%) blur(6px);
}

.nav-inner {
  width: min(var(--max-content), calc(100% - 2rem));
  margin-inline: auto;
  padding: 0.85rem 1rem;
  border: 1px solid color-mix(in srgb, var(--line-strong) 85%, transparent);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--bg-surface-strong) 78%, transparent);
  backdrop-filter: blur(20px) saturate(160%);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  min-width: fit-content;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 0.65rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: #05111f;
  background: linear-gradient(140deg, var(--accent-1), var(--accent-3));
  box-shadow: var(--shadow-sm);
}

.brand-text {
  font-size: 1rem;
  font-weight: 760;
  letter-spacing: 0.01em;
}

.nav-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.58rem;
}

.language-toggle {
  min-height: 42px;
  min-width: 8rem;
  border-radius: 999px;
  border: 1px solid var(--glass-edge);
  background: var(--glass-bg);
  color: var(--text-primary);
  padding: 0 2rem 0 0.85rem;
  font-size: 0.84rem;
  font-weight: 580;
  cursor: pointer;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
    linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position:
    calc(100% - 1rem) 1.05rem,
    calc(100% - 0.72rem) 1.05rem;
  background-size: 0.38rem 0.38rem, 0.38rem 0.38rem;
  background-repeat: no-repeat;
  box-shadow: var(--shadow-sm);
  transition: transform 220ms var(--ease-snappy), box-shadow 220ms var(--ease-standard), border-color 220ms var(--ease-standard);
}

.language-toggle:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.56rem 0.88rem;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  font-size: 0.94rem;
  font-weight: 560;
  letter-spacing: 0.01em;
  transition: color 200ms var(--ease-standard), background-color 200ms var(--ease-standard), transform 200ms var(--ease-snappy);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0.82rem;
  right: 0.82rem;
  bottom: 0.36rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 240ms var(--ease-snappy);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--glass-bg) 72%, transparent);
  transform: translateY(-1px);
}

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

.theme-toggle {
  border: 1px solid var(--glass-edge);
  background: var(--glass-bg);
  color: var(--text-primary);
  border-radius: 999px;
  min-height: 42px;
  padding: 0 0.95rem;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 220ms var(--ease-snappy), box-shadow 220ms var(--ease-standard), background-color 220ms var(--ease-standard);
}

.theme-toggle:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.section {
  position: relative;
  width: min(var(--max-content), calc(100% - 2rem));
  margin-inline: auto;
  padding-block: var(--section-pad);
}

.section::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-soft) 25%, var(--line-strong) 50%, var(--line-soft) 75%, transparent);
}

.hero {
  min-height: clamp(70vh, 86vh, 94vh);
  display: flex;
  align-items: center;
  padding-top: clamp(1rem, 2vw, 2rem);
}

.hero-grid {
  width: 100%;
  display: grid;
  align-items: center;
  gap: clamp(1.8rem, 4vw, 4rem);
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
}

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

.kicker {
  width: fit-content;
  padding: 0.38rem 0.72rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent-1) 38%, var(--line-soft));
  background: color-mix(in srgb, var(--accent-1) 12%, var(--bg-surface));
  color: var(--text-secondary);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  max-width: 17ch;
}

.hero-copy p {
  margin: 1.2rem 0 0;
  max-width: 56ch;
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.45vw, 1.14rem);
}

.hero-actions {
  margin-top: 1.35rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.62rem;
}

.cta {
  border: 1px solid var(--line-soft);
  min-height: 44px;
  border-radius: 999px;
  padding: 0.62rem 0.98rem;
  font-size: 0.9rem;
  font-weight: 650;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 220ms var(--ease-snappy), box-shadow 220ms var(--ease-standard), border-color 220ms var(--ease-standard), background-color 220ms var(--ease-standard);
}

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

.cta-primary {
  color: #040d1b;
  border-color: color-mix(in srgb, var(--accent-1) 58%, transparent);
  background: linear-gradient(130deg, var(--accent-1), color-mix(in srgb, var(--accent-3) 82%, white));
  box-shadow: var(--shadow-glow);
}

.cta-secondary {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--bg-surface) 82%, transparent);
}

.cta-ghost {
  color: var(--text-secondary);
  background: transparent;
}

.cta-secondary:hover,
.cta-ghost:hover {
  border-color: color-mix(in srgb, var(--accent-1) 36%, var(--line-soft));
  box-shadow: var(--shadow-sm);
}

.download-tooltip {
  position: absolute;
  z-index: 1200;
  max-width: min(260px, calc(100vw - 1.2rem));
  padding: 0.45rem 0.62rem;
  border-radius: 0.7rem;
  border: 1px solid color-mix(in srgb, var(--accent-1) 28%, var(--line-soft));
  background: color-mix(in srgb, var(--bg-surface-strong) 88%, var(--bg-canvas));
  box-shadow: var(--shadow-md);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-weight: 650;
  letter-spacing: 0.01em;
  line-height: 1.35;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity 140ms var(--ease-standard), transform 140ms var(--ease-standard);
}

.download-tooltip.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.trust-list {
  margin: 1.15rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.42rem;
  color: var(--text-secondary);
  font-size: 0.96rem;
}

.trust-list li {
  position: relative;
  padding-left: 1.15rem;
}

.trust-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.52rem;
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 999px;
  background: linear-gradient(130deg, var(--accent-1), var(--accent-3));
}

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

.hero-panel {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-edge);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--glass-bg) 88%, transparent), color-mix(in srgb, var(--bg-elevated) 80%, transparent));
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(24px) saturate(145%);
  padding: clamp(1rem, 2.4vw, 1.7rem);
  overflow: hidden;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(130deg, rgba(97, 218, 251, 0.46), rgba(143, 125, 255, 0.24), rgba(64, 248, 197, 0.36));
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  pointer-events: none;
}

.command-shell {
  display: grid;
  gap: 0;
  border-radius: var(--radius-md);
  overflow: clip;
  border: 1px solid color-mix(in srgb, var(--line-strong) 82%, transparent);
  box-shadow: var(--shadow-md);
  background: var(--bg-shell);
}

.shell-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.72rem 0.95rem;
  background: color-mix(in srgb, var(--bg-surface-strong) 75%, var(--bg-shell));
  border-bottom: 1px solid color-mix(in srgb, var(--line-soft) 82%, transparent);
}

.shell-path {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--text-muted) 82%, white 18%);
}

.shell-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
}

.shell-controls > * {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 999px;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.28);
  opacity: 0.9;
}

.shell-controls > *:nth-child(1) {
  background: var(--danger);
}

.shell-controls > *:nth-child(2) {
  background: var(--warning);
}

.shell-controls > *:nth-child(3) {
  background: var(--accent-3);
}

.prompt-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.32rem 0.62rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-2) 12%, var(--bg-surface));
  border: 1px solid color-mix(in srgb, var(--accent-2) 30%, transparent);
  color: var(--text-secondary);
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 700;
  cursor: pointer;
  transition: transform 220ms var(--ease-snappy), box-shadow 220ms var(--ease-standard), border-color 220ms var(--ease-standard);
}

.prompt-chip:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: color-mix(in srgb, var(--accent-1) 40%, var(--accent-2));
}

.shell-body {
  margin: 0;
  padding: 1rem 1.05rem 1.2rem;
  min-height: 14rem;
  max-height: 17rem;
  color: #d7ebff;
  font-family: var(--font-mono);
  font-size: clamp(0.82rem, 1.6vw, 0.94rem);
  line-height: 1.7;
  overflow: auto;
  display: grid;
  align-content: start;
  gap: 0.46rem;
  background:
    linear-gradient(180deg, rgba(16, 26, 46, 0.44), rgba(8, 12, 24, 0.62)),
    var(--bg-shell);
}

.shell-line {
  color: color-mix(in srgb, #d7ebff 88%, white 12%);
}

.shell-line.is-command {
  color: color-mix(in srgb, var(--accent-3) 65%, #d7ebff);
}

.shell-line.is-response {
  color: color-mix(in srgb, var(--accent-1) 52%, #d7ebff);
}

.command-input-row {
  margin-top: 0.9rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.58rem;
}

#command-input,
#run-command {
  min-height: 2.7rem;
  border-radius: 0.78rem;
  border: 1px solid var(--line-soft);
}

#command-input {
  background: color-mix(in srgb, var(--bg-shell) 68%, var(--bg-surface));
  color: var(--text-primary);
  padding: 0 0.84rem;
  font-size: 0.91rem;
  font-family: var(--font-mono);
}

#run-command {
  padding: 0 1rem;
  font-size: 0.88rem;
  font-weight: 650;
  background: linear-gradient(140deg, color-mix(in srgb, var(--accent-1) 35%, var(--bg-surface)), color-mix(in srgb, var(--accent-2) 28%, var(--bg-surface)));
  color: var(--text-primary);
  cursor: pointer;
  transition: transform 200ms var(--ease-snappy), box-shadow 220ms var(--ease-standard), border-color 220ms var(--ease-standard);
}

#run-command:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: color-mix(in srgb, var(--accent-1) 44%, var(--line-soft));
}

.chip-row {
  margin-top: 0.78rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.52rem;
}

.stats-grid {
  margin-top: clamp(1.2rem, 2.6vw, 2rem);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(0.75rem, 2vw, 1.2rem);
}

.stat-card {
  position: relative;
  padding: 1.08rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-edge);
  background: color-mix(in srgb, var(--bg-surface) 78%, transparent);
  backdrop-filter: blur(12px) saturate(130%);
  box-shadow: var(--shadow-sm);
  transition: transform 240ms var(--ease-snappy), box-shadow 240ms var(--ease-standard), border-color 240ms var(--ease-standard);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  border-color: color-mix(in srgb, var(--accent-1) 36%, var(--glass-edge));
}

.stat-value {
  display: block;
  font-size: clamp(1.46rem, 3.2vw, 2.15rem);
  line-height: 1.1;
  font-weight: 780;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--text-primary), color-mix(in srgb, var(--accent-1) 66%, var(--text-primary)) 70%);
  -webkit-background-clip: text;
  color: transparent;
}

.feature-tabs {
  margin-top: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.62rem;
}

.section-heading {
  max-width: 64ch;
}

.section-title {
  margin-top: 0.76rem;
  font-size: clamp(1.58rem, 3.2vw, 2.45rem);
  line-height: 1.16;
}

.section-lead {
  margin-top: 1rem;
  color: var(--text-secondary);
  font-size: clamp(0.98rem, 1.5vw, 1.1rem);
}

.feature-tab {
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--bg-surface) 70%, transparent);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 0.55rem 0.96rem;
  font-size: 0.9rem;
  font-weight: 580;
  cursor: pointer;
  transition: transform 220ms var(--ease-snappy), border-color 220ms var(--ease-standard), background-color 220ms var(--ease-standard), color 220ms var(--ease-standard), box-shadow 220ms var(--ease-standard);
}

.feature-tab:hover,
.feature-tab[aria-selected="true"],
.feature-tab.is-active {
  color: var(--text-primary);
  border-color: color-mix(in srgb, var(--accent-1) 42%, var(--line-soft));
  background: color-mix(in srgb, var(--accent-2) 13%, var(--bg-surface));
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.feature-panel {
  margin-top: 1rem;
  padding: 1.05rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--bg-surface) 80%, transparent);
  color: var(--text-secondary);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  max-height: 0;
  overflow: hidden;
  transition: opacity 320ms var(--ease-standard), transform 320ms var(--ease-standard), max-height 380ms var(--ease-standard), padding 320ms var(--ease-standard);
}

.feature-panel-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.52fr) minmax(0, 0.48fr);
  gap: 1rem;
  align-items: center;
}

.feature-panel img {
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in srgb, var(--accent-1) 20%, var(--line-soft));
  box-shadow: var(--shadow-sm);
  background: color-mix(in srgb, var(--bg-surface) 78%, transparent);
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.feature-panel-copy h3 {
  font-size: clamp(1.1rem, 2vw, 1.38rem);
}

.feature-panel-copy ul {
  margin: 0.72rem 0 0;
  padding-left: 1.12rem;
  display: grid;
  gap: 0.52rem;
}

.feature-panel-copy li {
  color: var(--text-secondary);
}

.feature-panel.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  max-height: 520px;
  padding: 1.05rem 1.1rem;
}

.feature-panel[hidden] {
  display: none;
}

.workflow-track {
  position: relative;
  margin-top: clamp(1.2rem, 2.8vw, 2rem);
  display: grid;
  gap: 0.95rem;
}

.workflow-track::before {
  content: "";
  position: absolute;
  top: 1.05rem;
  bottom: 1.05rem;
  left: 0.78rem;
  width: 2px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent-1), color-mix(in srgb, var(--accent-2) 75%, var(--accent-3)));
  opacity: 0.44;
}

.workflow-step {
  position: relative;
  margin-left: 1.85rem;
  padding: 0.92rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--bg-surface) 76%, transparent);
  box-shadow: var(--shadow-sm);
  transition: transform 220ms var(--ease-snappy), border-color 220ms var(--ease-standard), box-shadow 220ms var(--ease-standard);
}

.workflow-step::before {
  content: "";
  position: absolute;
  left: -1.53rem;
  top: 1rem;
  width: 0.76rem;
  height: 0.76rem;
  border-radius: 999px;
  border: 2px solid color-mix(in srgb, var(--accent-1) 80%, white 20%);
  background: var(--bg-canvas);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-1) 20%, transparent);
}

.workflow-step:hover {
  transform: translateX(4px);
  border-color: color-mix(in srgb, var(--accent-1) 30%, var(--line-soft));
  box-shadow: var(--shadow-glow);
}

.workflow-step h3 {
  font-size: 1.08rem;
}

.workflow-step p {
  margin-top: 0.52rem;
  color: var(--text-secondary);
}

.showcase-grid {
  margin-top: clamp(1rem, 2.4vw, 1.5rem);
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.showcase-card {
  padding: clamp(1rem, 2.2vw, 1.3rem);
  display: grid;
  gap: 0.68rem;
}

.showcase-card h3 {
  font-size: 1.18rem;
}

.showcase-card p {
  color: var(--text-secondary);
}

.showcase-card span {
  width: fit-content;
  border-radius: 999px;
  padding: 0.22rem 0.64rem;
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-transform: uppercase;
  border: 1px solid color-mix(in srgb, var(--line-soft) 88%, transparent);
}

.docs-grid {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.docs-card {
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--bg-surface) 78%, transparent);
  box-shadow: var(--shadow-sm);
  padding: clamp(1rem, 2.2vw, 1.3rem);
}

.docs-card h3 {
  font-size: 1.18rem;
}

.docs-card p {
  margin-top: 0.72rem;
  color: var(--text-secondary);
}

.docs-card a {
  color: color-mix(in srgb, var(--accent-1) 72%, var(--text-primary));
}

.install-steps {
  margin: 0.9rem 0 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.56rem;
  color: var(--text-secondary);
}

.update-list {
  margin: 0.9rem 0 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.5rem;
  color: var(--text-secondary);
}

.shortcut-note {
  margin-top: 0.85rem;
  padding: 0.6rem 0.76rem;
  border-radius: var(--radius-xs);
  border: 1px dashed color-mix(in srgb, var(--line-soft) 90%, transparent);
  background: color-mix(in srgb, var(--bg-canvas) 30%, transparent);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.site-footer {
  width: min(var(--max-content), calc(100% - 2rem));
  margin: 0 auto 2.2rem;
  padding: 0.2rem 0 0;
  color: var(--text-secondary);
  text-align: center;
  font-size: 0.95rem;
}

.back-to-top {
  position: fixed;
  right: clamp(1rem, 2.5vw, 1.85rem);
  bottom: clamp(1rem, 2.8vw, 1.85rem);
  width: 3.55rem;
  height: 3.55rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  color: var(--text-primary);
  background:
    linear-gradient(color-mix(in srgb, var(--bg-surface-strong) 94%, transparent), color-mix(in srgb, var(--bg-surface) 90%, transparent)) padding-box,
    conic-gradient(from 180deg, var(--accent-1), var(--accent-2), var(--accent-3), #ffd86f, var(--accent-1)) border-box;
  box-shadow:
    0 16px 34px rgba(10, 16, 30, 0.22),
    0 0 0 1px color-mix(in srgb, var(--accent-1) 20%, transparent);
  z-index: 1250;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px) scale(0.9);
  transition:
    opacity 220ms var(--ease-standard),
    transform 220ms var(--ease-snappy),
    visibility 220ms var(--ease-standard),
    box-shadow 220ms var(--ease-standard);
}

.back-to-top::before {
  content: "";
  position: absolute;
  inset: -9px;
  border-radius: inherit;
  background: conic-gradient(from 160deg, var(--accent-1), var(--accent-2), var(--accent-3), #ffd86f, var(--accent-1));
  filter: blur(15px);
  opacity: 0.74;
  z-index: -2;
}

.back-to-top::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: inherit;
  background: color-mix(in srgb, var(--bg-surface-strong) 94%, transparent);
  z-index: -1;
}

.back-to-top span {
  font-size: 1.26rem;
  line-height: 1;
  font-weight: 700;
  display: inline-block;
  transform: rotate(0deg);
  transition: transform 180ms var(--ease-snappy);
}

.back-to-top:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow:
    0 20px 42px rgba(10, 16, 30, 0.28),
    0 0 26px rgba(97, 218, 251, 0.22),
    0 0 36px rgba(143, 125, 255, 0.2);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.tilt-card {
  position: relative;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  background: linear-gradient(155deg, color-mix(in srgb, var(--bg-surface-strong) 82%, transparent), color-mix(in srgb, var(--bg-elevated) 78%, transparent));
  box-shadow: var(--shadow-md);
  transform-style: preserve-3d;
  transform: perspective(900px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg)) translateY(0);
  transition: transform 260ms var(--ease-snappy), box-shadow 260ms var(--ease-standard), border-color 260ms var(--ease-standard);
  overflow: hidden;
}

.tilt-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 45%), rgba(255, 255, 255, 0.2), transparent 62%);
  opacity: 0;
  transition: opacity 260ms var(--ease-standard);
  pointer-events: none;
}

.tilt-card:hover {
  transform: perspective(900px) rotateX(var(--tilt-x, 5deg)) rotateY(var(--tilt-y, -6deg)) translateY(-5px);
  border-color: color-mix(in srgb, var(--accent-2) 34%, var(--line-soft));
  box-shadow: var(--shadow-glow);
}

.tilt-card:hover::after {
  opacity: 1;
}

.reveal {
  opacity: 0;
  transform: translateY(26px) scale(0.985);
  filter: blur(6px);
  transition: opacity 620ms var(--ease-standard), transform 620ms var(--ease-snappy), filter 620ms var(--ease-standard);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

.faq details {
  margin-block: 0.82rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--bg-surface) 78%, transparent);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 220ms var(--ease-standard), box-shadow 220ms var(--ease-standard), transform 220ms var(--ease-snappy);
}

.faq details[open] {
  border-color: color-mix(in srgb, var(--accent-2) 40%, var(--line-soft));
  box-shadow: var(--shadow-glow);
}

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

.faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  font-weight: 620;
  color: var(--text-primary);
}

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

.faq summary::after {
  content: "+";
  font-size: 1.2rem;
  line-height: 1;
  color: var(--text-muted);
  transition: transform 220ms var(--ease-snappy), color 220ms var(--ease-standard);
}

.faq details[open] summary::after {
  transform: rotate(45deg);
  color: var(--accent-1);
}

.faq details > :not(summary) {
  padding: 0 1.1rem 1rem;
  color: var(--text-secondary);
}

.faq-shortcuts-wrap {
  margin-top: 0.7rem;
  overflow-x: auto;
}

.faq-shortcuts-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  color: var(--text-secondary);
  font-size: 0.96rem;
}

.faq-shortcuts-table th,
.faq-shortcuts-table td {
  padding: 0.8rem 0.95rem;
  text-align: left;
  vertical-align: middle;
  border-top: 1px solid color-mix(in srgb, var(--line-soft) 88%, transparent);
}

.faq-shortcuts-table thead th {
  color: var(--text-primary);
  font-weight: 650;
  background: color-mix(in srgb, var(--bg-canvas) 52%, transparent);
}

.faq-shortcuts-table tbody tr:last-child td {
  border-bottom: 1px solid color-mix(in srgb, var(--line-soft) 88%, transparent);
}

.faq-shortcuts-table td:first-child,
.faq-shortcuts-table th:first-child {
  width: 12.5rem;
  white-space: nowrap;
}

.faq-shortcuts-table code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-primary);
  background: color-mix(in srgb, var(--bg-surface) 82%, transparent);
  border: 1px solid color-mix(in srgb, var(--line-soft) 86%, transparent);
  border-radius: 999px;
  padding: 0.22rem 0.55rem;
  display: inline-block;
}

.faq-shortcut-note {
  margin-top: 0.72rem;
}

body.modal-open {
  overflow: hidden;
}

.donate-modal {
  position: fixed;
  inset: 0;
  z-index: 1300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.donate-modal[hidden] {
  display: none;
}

.donate-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 10, 22, 0.7);
  backdrop-filter: blur(6px);
}

.donate-modal-dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 680px);
  max-height: min(90vh, 720px);
  overflow-y: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--bg-surface-strong) 88%, var(--bg-canvas));
  box-shadow: var(--shadow-lg);
  padding: clamp(1rem, 3vw, 1.6rem);
}

.donate-modal-close {
  position: absolute;
  top: 0.65rem;
  right: 0.7rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--text-muted);
  width: 2rem;
  height: 2rem;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  transition: transform 160ms var(--ease-snappy), color 160ms var(--ease-standard), border-color 160ms var(--ease-standard);
}

.donate-modal-close:hover {
  color: var(--text-primary);
  border-color: var(--line-soft);
  transform: scale(1.06);
}

.donate-modal-dialog h2 {
  font-size: clamp(1.32rem, 3vw, 1.8rem);
}

.donate-modal-dialog p {
  margin-top: 0.6rem;
  color: var(--text-secondary);
}

.donate-qr-grid {
  margin-top: 1rem;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.donate-qr-grid figure {
  margin: 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--bg-surface) 78%, transparent);
  box-shadow: var(--shadow-sm);
  padding: 0.8rem;
  text-align: center;
}

.donate-qr-grid figure img {
  width: auto;
  max-width: 100%;
  max-height: clamp(220px, 40vh, 320px);
  margin: 0 auto;
  object-fit: contain;
}

.donate-qr-grid figcaption {
  margin-top: 0.58rem;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    order: 0;
  }

  .hero-panel {
    order: 1;
    max-width: 760px;
  }

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

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

  .showcase-grid,
  .docs-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 800px) {
  .site-header {
    min-height: 64px;
  }

  .nav-inner {
    width: min(var(--max-content), calc(100% - 1rem));
    border-radius: var(--radius-md);
    padding: 0.68rem 0.72rem;
  }

  .nav-links {
    gap: 0.15rem;
    overflow-x: auto;
    scrollbar-width: none;
    white-space: nowrap;
    flex-wrap: nowrap;
    max-width: 48vw;
  }

  .brand-text {
    display: none;
  }

  .theme-toggle {
    min-height: 38px;
    padding: 0 0.78rem;
  }

  .language-toggle {
    min-height: 38px;
    min-width: 4.8rem;
    padding: 0 1.55rem 0 0.62rem;
    font-size: 0.78rem;
    background-position:
      calc(100% - 0.85rem) 0.96rem,
      calc(100% - 0.62rem) 0.96rem;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .section {
    width: min(var(--max-content), calc(100% - 1.2rem));
  }

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

  .feature-tabs {
    gap: 0.5rem;
  }

  .command-input-row {
    grid-template-columns: 1fr;
  }

  #run-command {
    width: 100%;
  }

  .workflow-track::before {
    left: 0.62rem;
  }

  .workflow-step {
    margin-left: 1.5rem;
    padding: 0.86rem 0.9rem;
  }

  .workflow-step::before {
    left: -1.33rem;
  }
}

@media (max-width: 560px) {
  .hero {
    min-height: auto;
    padding-top: 0.4rem;
  }

  .hero-copy h1 {
    font-size: clamp(1.75rem, 11vw, 2.45rem);
  }

  .hero-copy p {
    margin-top: 0.95rem;
  }

  .hero-actions {
    gap: 0.52rem;
  }

  .cta {
    width: 100%;
  }

  .trust-list {
    font-size: 0.9rem;
  }

  .hero-panel {
    padding: 0.8rem;
    border-radius: var(--radius-md);
  }

  .shell-head,
  .shell-body {
    padding-inline: 0.78rem;
  }

  .feature-tab {
    font-size: 0.84rem;
    padding: 0.5rem 0.75rem;
  }

  .faq summary {
    padding: 0.86rem 0.9rem;
    font-size: 0.95rem;
  }

  .faq details > :not(summary) {
    padding: 0 0.9rem 0.9rem;
  }

  .site-footer {
    width: min(var(--max-content), calc(100% - 1.2rem));
    font-size: 0.88rem;
  }

  .back-to-top {
    width: 3.08rem;
    height: 3.08rem;
    right: 0.9rem;
    bottom: 0.95rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

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

  .cursor-glow,
  .ambient-bg,
  .grid-layer {
    animation: none !important;
  }
}

@keyframes ambient-float {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(1.5%, -1.8%, 0) scale(1.035);
  }
}

@keyframes grid-drift {
  0% {
    transform: translate3d(0, 0, 0);
  }
  100% {
    transform: translate3d(44px, 24px, 0);
  }
}