/* 小陀螺 · 1:1 静态复刻，颜色/字号/间距对齐原站 Tailwind 主题 */

:root {
  --background: #06090E;
  --foreground: oklch(0.98 0 0);
  --card: oklch(0.18 0.01 240);
  --card-foreground: oklch(0.98 0 0);
  --primary: oklch(0.82 0.14 195);
  --primary-foreground: oklch(0.14 0.008 240);
  --secondary: oklch(0.22 0.012 240);
  --muted: oklch(0.22 0.012 240);
  --muted-foreground: oklch(0.65 0.01 240);
  --accent: oklch(0.78 0.15 65);
  --border: oklch(0.28 0.012 240);
  --ring: oklch(0.82 0.14 195);
  --radius: 0.875rem;
  --font-sans: var(--font-noto-sans-sc), Geist, ui-sans-serif, system-ui, sans-serif;
  --font-mono: var(--font-jetbrains-mono), "Geist Mono", ui-monospace, monospace;
  --font-display: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container: 80rem;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --bg-arcs: url("../assets/b1.jpg");
  --gradient-brand: linear-gradient(
    90deg,
    oklch(0.82 0.14 195) 0%,
    oklch(0.88 0.1 130) 40%,
    oklch(0.78 0.15 65) 100%
  );
}

*,
*::before,
*::after {
  box-sizing: border-box;
  border-color: color-mix(in oklch, var(--border) 100%, transparent);
}

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  touch-action: manipulation;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: var(--primary);
  color: var(--primary-foreground);
  font-size: 0.875rem;
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

.page {
  position: relative;
  min-height: 100vh;
  background: var(--background);
  color: var(--foreground);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  pointer-events: none;
}

.icon-sm {
  width: 1rem;
  height: 1rem;
}

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--primary);
}

.display-title {
  margin: 1rem 0 0;
  text-wrap: balance;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

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

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  border-bottom: 1px solid #01060B;
  background: color-mix(in srgb, #01060B 78%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: background 300ms var(--ease), border-color 300ms var(--ease), backdrop-filter 300ms var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: #01060B;
  background: color-mix(in srgb, #01060B 88%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-inner {
  position: relative;
  display: flex;
  height: 4rem;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  z-index: 2;
}

.brand img {
  width: 2.25rem;
  height: 2.25rem;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.nav-toggle {
  position: relative;
  z-index: 2;
  display: flex;
  width: 2.75rem;
  height: 2.75rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--foreground);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle:focus-visible {
  outline: 2px solid color-mix(in oklch, var(--primary) 70%, transparent);
  outline-offset: 4px;
  border-radius: 0.5rem;
}

.nav-toggle-bar {
  display: block;
  width: 1.375rem;
  height: 1.5px;
  border-radius: 1px;
  background: currentColor;
  transform-origin: center;
  transition: transform 200ms var(--ease), opacity 160ms var(--ease);
}

.site-header.is-nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.site-header.is-nav-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.site-header.is-nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

.nav-pill {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  left: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem;
  border: 1px solid color-mix(in oklch, var(--border) 70%, transparent);
  border-radius: 1rem;
  background: color-mix(in oklch, var(--background) 96%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 16px 40px color-mix(in oklch, #000 45%, transparent);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-0.5rem);
  transition: opacity 200ms var(--ease), transform 200ms var(--ease), visibility 200ms var(--ease);
}

.site-header.is-nav-open .nav-pill {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.site-header.is-nav-open {
  border-bottom-color: color-mix(in oklch, var(--border) 60%, transparent);
  background: color-mix(in oklch, var(--background) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-pill a {
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  font-size: 0.9375rem;
  color: var(--muted-foreground);
  transition: color 60ms var(--ease), background 150ms var(--ease);
}

.nav-pill a:hover {
  color: #00E0E0;
  background: color-mix(in oklch, var(--primary) 10%, transparent);
}

.nav-pill a:focus-visible {
  color: #00E0E0;
}

.nav-pill a:focus {
  color: #00E0E0;
  outline: none;
}

.nav-pill a.is-active {
  color: #00E0E0;
  background: color-mix(in oklch, var(--primary) 12%, transparent);
}

.live-dot {
  display: inline-flex;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: var(--primary);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
  border: 0;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  transition: background 150ms var(--ease), color 150ms var(--ease), border-color 150ms var(--ease), transform 150ms var(--ease);
  outline: none;
  cursor: pointer;
  touch-action: manipulation;
}

.btn:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--ring) 50%, transparent);
}

.btn-lg {
  height: 2.5rem;
  padding: 0 1.5rem;
}

.btn-sm {
  height: 2rem;
  padding: 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.btn-primary {
  background: var(--primary);
  color: var(--primary-foreground);
}

.btn-primary:hover {
  background: color-mix(in oklch, var(--primary) 90%, transparent);
}

.btn-outline {
  border: 1px solid color-mix(in oklch, var(--border) 80%, transparent);
  background: transparent;
  color: var(--foreground);
}

.hero-actions .btn-outline {
  border-color: #00E0E0;
  color: #00E0E0;
}

.btn-outline:hover {
  background: var(--secondary);
  color: #00E0E0;
  border-color: #00E0E0;
}

.btn .icon-sm {
  transition: transform 150ms var(--ease);
}

.btn-primary:hover .icon-sm {
  transform: translate(2px, -2px);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  scroll-margin-top: 6rem;
  padding: 8rem 0 5rem;
  background-color: #06090E;
  background-image: var(--bg-arcs);
  background-size: min(1280px, 100%) auto;
  background-position: center top;
  background-repeat: no-repeat;
  background-blend-mode: lighten;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 3rem;
}

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

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  text-align: center;
}

.chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid color-mix(in oklch, var(--border) 80%, transparent);
  background: color-mix(in oklch, var(--card) 80%, transparent);
  padding: 0.375rem 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
}

.hero h1 {
  margin: 0;
  text-wrap: balance;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.hero-lead {
  margin: 0 auto;
  max-width: 42rem;
  text-wrap: pretty;
  font-size: 1rem;
  line-height: 1.625;
  color: var(--muted-foreground);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.apps,
.services,
.why,
.about,
.cta {
  content-visibility: auto;
  contain-intrinsic-size: 1px 900px;
}

.stats {
  content-visibility: auto;
  contain-intrinsic-size: auto 18rem;
}

/* ---------- Marquee ---------- */
.marquee {
  position: relative;
  border-top: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
  border-bottom: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
  background: color-mix(in oklch, var(--card) 60%, transparent);
  padding: 1.5rem 0;
}

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

.marquee-fade {
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 10;
  width: 6rem;
  pointer-events: none;
}

.marquee-fade-left {
  left: 0;
  background: linear-gradient(to right, var(--background), transparent);
}

.marquee-fade-right {
  right: 0;
  background: linear-gradient(to left, var(--background), transparent);
}

.marquee-track-wrap {
  display: flex;
  overflow: hidden;
}

.marquee-track {
  display: flex;
  min-width: max-content;
  align-items: center;
  gap: 2.5rem;
  padding-right: 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--muted-foreground);
  animation: marquee 60s linear infinite;
}

.marquee:not(.is-paused) .marquee-track {
  will-change: transform;
}

.marquee-item {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  white-space: nowrap;
}

.marquee-item span:last-child {
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

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

/* ---------- Stats ---------- */
.stats {
  position: relative;
  border-bottom: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
  background-color: #06090E;
}

.stats-grid {
  display: grid;
  max-width: var(--container);
  margin: 0 auto;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
}

.stat-card {
  --stat-pad: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
  height: calc(16rem - 80px);
  padding: var(--stat-pad);
  border-bottom: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
  transition: background 150ms var(--ease);
}

.stat-card:last-child {
  border-bottom: 0;
}

.stat-card:hover {
  background: color-mix(in oklch, var(--card) 60%, transparent);
}

.stat-top {
  position: absolute;
  top: var(--stat-pad);
  right: var(--stat-pad);
  left: var(--stat-pad);
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}

.stat-top .icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary);
}

.stat-index {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted-foreground);
}

.stat-body {
  position: relative;
  z-index: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.stat-value {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
}

.stat-num {
  display: inline-block;
  overflow: hidden;
  height: 1em;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.025em;
  font-variant-numeric: tabular-nums;
  vertical-align: baseline;
  color: var(--primary);
}

.stat-num-strip {
  display: flex;
  flex-direction: column;
  align-items: center;
  will-change: transform;
}

.stat-num-strip > span {
  display: flex;
  flex: 0 0 1em;
  align-items: center;
  justify-content: center;
  height: 1em;
  line-height: 1;
}

.stat-suffix {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 1rem;
  font-weight: 600;
}

/* ---------- Apps ---------- */
.apps {
  position: relative;
  overflow: hidden;
  scroll-margin-top: 6rem;
  padding: 6rem 0;
  background-color: #06090E;
  container-type: inline-size;
}

/* 上行：垂直翻转 */
.apps::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 0;
  width: min(1280px, 100%);
  aspect-ratio: 1920 / 1080;
  pointer-events: none;
  background-color: #06090E;
  background-image: var(--bg-arcs);
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  background-blend-mode: lighten;
  transform: translateX(-50%) scaleY(-1);
}

/* 下行：正向，紧接在翻转图下方 */
.apps::after {
  content: "";
  position: absolute;
  top: calc(min(1280px, 100cqw) * 1080 / 1920);
  left: 50%;
  z-index: 0;
  width: min(1280px, 100%);
  aspect-ratio: 1920 / 1080;
  pointer-events: none;
  background-color: #06090E;
  background-image: var(--bg-arcs);
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  background-blend-mode: lighten;
  transform: translateX(-50%);
}

.apps > .container {
  position: relative;
  z-index: 1;
}

.apps-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.apps-lead {
  margin: 0;
  max-width: 42rem;
  text-wrap: pretty;
  line-height: 1.625;
  color: var(--muted-foreground);
}

.apps-proof {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 0.25rem;
}

.apps-proof-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.apps-proof-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--foreground);
}

.apps-proof-value span {
  margin-left: 0.05em;
  color: var(--primary);
}

.apps-proof-label {
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--muted-foreground);
}

.apps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 3.5rem;
}

.app-card {
  position: relative;
  display: flex;
  aspect-ratio: 1 / 1;
  flex-direction: column;
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid color-mix(in oklch, var(--border) 70%, transparent);
  background: var(--card);
  padding: 1.25rem;
  transition: border-color 200ms var(--ease);
}

.app-card:hover {
  border-color: #00E0E0;
}

.app-card.has-qr {
  padding: 0;
  overflow: visible;
  border-color: transparent;
  background: transparent;
  perspective: 1100px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.app-card.has-qr:hover,
.app-card.has-qr:focus-visible,
.app-card.has-qr.is-flipped {
  border-color: transparent;
}

.app-card.has-qr:focus-visible {
  outline: 2px solid color-mix(in oklch, var(--primary) 70%, transparent);
  outline-offset: 4px;
}

.app-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.55s var(--ease);
}

.app-card-face {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  border-radius: 1rem;
  border: 1px solid color-mix(in oklch, var(--border) 70%, transparent);
  background: var(--card);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: border-color 200ms var(--ease);
}

.app-card.has-qr:hover .app-card-face,
.app-card.has-qr:focus-within .app-card-face,
.app-card.has-qr.is-flipped .app-card-face {
  border-color: #00E0E0;
}

.app-card.has-qr:hover .app-qr-tip,
.app-card.has-qr:focus-within .app-qr-tip,
.app-card.has-qr.is-flipped .app-qr-tip {
  color: #00E0E0;
}

.app-card.has-qr:hover .app-qr-status,
.app-card.has-qr:focus-within .app-qr-status,
.app-card.has-qr.is-flipped .app-qr-status {
  color: #00E0E0;
}

.app-card-back {
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  text-align: center;
  transform: rotateY(180deg);
}

.app-card-back img {
  width: min(66%, 10rem);
  aspect-ratio: 1;
  height: auto;
  border: 0;
  border-radius: 0.5rem;
  background: transparent;
  padding: 0;
  box-shadow: none;
  outline: none;
}

.app-qr-tip {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--muted-foreground);
  transition: color 200ms var(--ease);
}

.app-qr-status {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #00E0E0;
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .app-card.has-qr:hover .app-card-inner,
  .app-card.has-qr:focus-within .app-card-inner {
    transform: rotateY(180deg);
  }
}

.app-card.has-qr.is-flipped .app-card-inner {
  transform: rotateY(180deg);
}

.app-card-head {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.app-icon {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border-radius: 0.75rem;
  border: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
  background: color-mix(in oklch, var(--background) 60%, transparent);
}

.tone-cyan {
  color: var(--primary);
}

.tone-amber {
  color: var(--accent);
}

.tone-ink {
  color: var(--foreground);
}

.app-index {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}

.app-body {
  position: relative;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  margin-top: 0;
  padding-top: 1rem;
  min-height: 0;
}

.app-body h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.app-scenes {
  margin: 0.5rem 0 0;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--muted-foreground);
}

.app-foot {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  border-top: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
  padding-top: 0.75rem;
}

.app-cat {
  border-radius: 999px;
  border: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
  background: color-mix(in oklch, var(--background) 60%, transparent);
  padding: 0.125rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}

.app-os {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--primary);
}

.dot-xs {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 999px;
  background: var(--primary);
}

/* ---------- Services ---------- */
.services {
  position: relative;
  overflow: hidden;
  scroll-margin-top: 6rem;
  padding: 6rem 0;
  background-color: #06090E;
}

.services::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-color: #06090E;
  background-image: var(--bg-arcs);
  background-size: min(1280px, 100%) auto;
  background-position: center bottom;
  background-repeat: no-repeat;
  background-blend-mode: lighten;
  transform: scaleY(-1);
}

.services .container {
  position: relative;
  z-index: 2;
}

.services-head {
  max-width: 48rem;
  margin: 0 auto;
  text-align: center;
}

.services-head p {
  max-width: 42rem;
  margin: 1.5rem auto 0;
  text-wrap: pretty;
  line-height: 1.625;
  color: var(--muted-foreground);
}

.services-head .hl {
  color: var(--foreground);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 3.5rem;
}

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  overflow: hidden;
  border-radius: 1.125rem;
  border: 1px solid color-mix(in oklch, var(--border) 70%, transparent);
  background: var(--card);
  padding: 1.875rem 1.625rem;
  transition: border-color 200ms var(--ease);
}

.service-card:hover {
  border-color: #00E0E0;
}

.service-icon {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border-radius: 0.75rem;
  background: color-mix(in oklch, var(--primary) 15%, transparent);
  color: var(--primary);
}

.service-card h3 {
  margin: 0.125rem 0 0;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.35;
}

.service-keyword {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--primary);
}

.service-tags {
  margin: 0.125rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.service-tags li {
  padding: 0.28rem 0.6rem;
  border-radius: 0.45rem;
  background: color-mix(in oklch, var(--secondary) 80%, transparent);
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--muted-foreground);
}

.service-pitch {
  margin: auto 0 0;
  padding-top: 1.125rem;
  border-top: 1px solid color-mix(in oklch, var(--border) 55%, transparent);
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--muted-foreground);
}

/* ---------- Why Us ---------- */
.why {
  position: relative;
  overflow: hidden;
  scroll-margin-top: 6rem;
  padding: 6rem 0;
  background-color: #06090E;
  background-image: var(--bg-arcs);
  background-size: min(1280px, 100%) auto;
  background-position: center top;
  background-repeat: no-repeat;
  background-blend-mode: lighten;
}

.why .container {
  position: relative;
  z-index: 2;
}

.why-head {
  max-width: 48rem;
  margin: 0 auto;
  text-align: center;
}

.why-head p {
  max-width: 42rem;
  margin: 1.5rem auto 0;
  text-wrap: pretty;
  line-height: 1.625;
  color: var(--muted-foreground);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 3.5rem;
}

.why-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  overflow: hidden;
  border-radius: 1.125rem;
  border: 1px solid color-mix(in oklch, var(--border) 70%, transparent);
  background: var(--card);
  padding: 1.875rem 1.625rem;
  transition: border-color 200ms var(--ease);
}

.why-card:hover {
  border-color: #00E0E0;
}

.why-icon {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border-radius: 0.75rem;
  background: color-mix(in oklch, var(--primary) 15%, transparent);
  color: var(--primary);
}

.why-card h3 {
  margin: 0.125rem 0 0;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.why-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--muted-foreground);
}

/* ---------- About ---------- */
.about {
  position: relative;
  overflow: hidden;
  scroll-margin-top: 6rem;
  padding: 6rem 0;
  background-color: #06090E;
}

.about::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-color: #06090E;
  background-image: var(--bg-arcs);
  background-size: min(1280px, 100%) auto;
  background-position: center bottom;
  background-repeat: no-repeat;
  background-blend-mode: lighten;
  transform: scaleY(-1);
}

.about > .container {
  position: relative;
  z-index: 1;
}

.about-head {
  max-width: 48rem;
  margin: 0 auto;
  text-align: center;
}

.about-head p {
  margin: 1.5rem auto 0;
  max-width: 42rem;
  text-wrap: pretty;
  line-height: 1.625;
  color: var(--muted-foreground);
}

.about-head p + p {
  margin-top: 1rem;
}

.nowrap {
  white-space: nowrap;
}

.about-body {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
  margin-top: 3.5rem;
}

.about-pills {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.pill {
  border-radius: 0.75rem;
  border: 1px solid color-mix(in oklch, var(--border) 70%, transparent);
  background: var(--card);
  padding: 1rem;
  text-align: center;
}

.pill-k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}

.pill-v {
  margin-top: 0.25rem;
  font-size: 1rem;
  font-weight: 600;
}

.timeline {
  position: relative;
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  gap: 2rem;
}

.timeline li {
  position: relative;
  margin: 0;
  padding-top: 1.75rem;
  text-align: center;
}

.timeline-dot {
  position: absolute;
  top: 0;
  left: 50%;
  display: grid;
  width: 1rem;
  height: 1rem;
  place-items: center;
  transform: translateX(-50%);
}

.timeline-dot span {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 999px;
  background: var(--primary);
  box-shadow: 0 0 0 4px var(--background);
}

.timeline li::before {
  content: "";
  position: absolute;
  top: 0.4375rem;
  left: 50%;
  width: 1px;
  height: calc(100% + 2rem - 0.5rem);
  background: color-mix(in oklch, var(--border) 70%, transparent);
}

.timeline li:last-child::before {
  display: none;
}

.timeline-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.timeline-row .stat-index {
  order: -1;
}

.timeline-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.timeline-year {
  font-family: var(--font-display);
  font-size: 1.875rem;
  font-weight: 900;
  color: var(--primary);
}

.timeline h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.timeline p {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  line-height: 1.625;
  color: var(--muted-foreground);
}

/* ---------- CTA ---------- */
.cta {
  position: relative;
  overflow: hidden;
  scroll-margin-top: 6rem;
  padding: 6rem 0;
  background-color: #06090E;
  background-image: var(--bg-arcs);
  background-size: min(1280px, 100%) auto;
  background-position: center top;
  background-repeat: no-repeat;
  background-blend-mode: lighten;
  text-align: center;
}

.cta-glow {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 0;
  width: 680px;
  height: 380px;
  pointer-events: none;
  border-radius: 999px;
  background: radial-gradient(
    ellipse at center,
    color-mix(in oklch, var(--primary) 14%, transparent),
    color-mix(in oklch, var(--primary) 4%, transparent) 45%,
    transparent 70%
  );
  transform: translate(-50%, -50%);
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.lottie-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.lottie-wrap > div {
  width: 176px;
  height: 176px;
}

.cta-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 999px;
  border: 1px solid color-mix(in oklch, var(--border) 70%, transparent);
  background: var(--card);
  padding: 0.375rem 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
}

.cta-badge .live-dot {
  width: 0.375rem;
  height: 0.375rem;
}

.cta h2 {
  margin: 1.5rem 0 0;
  text-wrap: balance;
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.cta p {
  max-width: none;
  margin: 1.5rem auto 0;
  white-space: nowrap;
  line-height: 1.625;
  color: var(--muted-foreground);
}

@media (max-width: 767px) {
  .cta p {
    white-space: normal;
    max-width: 42rem;
    padding: 0 1rem;
  }
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2.5rem;
}

/* ---------- Footer ---------- */
.site-footer {
  position: relative;
  border-top: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
  background: color-mix(in oklch, var(--card) 30%, transparent);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2.5rem;
  padding: 3rem 0 0;
}

.footer-links {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  width: 100%;
  column-gap: 1.5rem;
  text-align: left;
}

.footer-col {
  text-align: left;
}

.footer-col:nth-child(2) {
  justify-self: center;
}

.footer-brand p {
  max-width: 24rem;
  margin: 1.25rem 0 0;
  font-size: 0.875rem;
  line-height: 1.625;
  color: var(--muted-foreground);
}

.footer-col h3 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}

.footer-col ul {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.footer-col li + li {
  margin-top: 0.625rem;
}

.footer-col a {
  font-size: 0.875rem;
  color: color-mix(in oklch, var(--foreground) 80%, transparent);
  transition: color 150ms var(--ease);
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  margin-top: 3rem;
  border-top: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
  padding: 1.5rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.footer-meta a {
  transition: color 150ms var(--ease);
}

.footer-meta a:hover {
  color: var(--foreground);
}

.wordmark {
  overflow: hidden;
  padding: 0 1rem 1.5rem;
  pointer-events: none;
  text-align: center;
}

.wordmark span {
  display: block;
  font-family: var(--font-display);
  font-size: 18vw;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.05em;
  color: color-mix(in oklch, var(--foreground) 10%, transparent);
}

@media (max-width: 767px) {
  .footer-grid {
    display: none;
  }

  .footer-bottom {
    display: none;
  }
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 2rem;
  bottom: 2rem;
  z-index: 50;
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #00E0E0;
  box-shadow: none;
  opacity: 0;
  transform: translateY(1rem);
  pointer-events: none;
  cursor: pointer;
  transition: opacity 300ms var(--ease), transform 300ms var(--ease);
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: block;
}

.back-to-top-ring {
  fill: none;
  stroke: #00E0E0;
  stroke-width: 2px;
  transition: fill 180ms var(--ease), stroke 180ms var(--ease);
}

.back-to-top-arrow {
  fill: none;
  stroke: #00E0E0;
  stroke-width: 2px;
  transition: stroke 180ms var(--ease);
}

.back-to-top:hover .back-to-top-ring {
  fill: #00E0E0;
  stroke: #00E0E0;
}

.back-to-top:hover .back-to-top-arrow {
  stroke: #06090E;
}

.back-to-top:focus-visible {
  outline: 2px solid color-mix(in oklch, var(--primary) 70%, transparent);
  outline-offset: 4px;
}

/* ---------- Breakpoints (Tailwind sm/md/lg) ---------- */
@media (min-width: 640px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .services-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

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

@media (min-width: 768px) {
  .container,
  .cta-inner,
  .wordmark {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  .nav-toggle {
    display: none;
  }

  .nav-pill {
    position: static;
    top: auto;
    right: auto;
    left: auto;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.25rem;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    transition: none;
  }

  .nav-pill a {
    padding: 0.375rem 1rem;
    border-radius: 0;
    font-size: 0.875rem;
    background: transparent;
  }

  .nav-pill a:hover,
  .nav-pill a.is-active {
    background: transparent;
  }

  .hero {
    padding: 10rem 0 7rem;
  }

  .hero h1 {
    font-size: 3.75rem;
  }

  .hero-lead {
    font-size: 1.125rem;
  }

  .stat-card {
    --stat-pad: 2.5rem;
    height: calc(18rem - 80px);
  }

  .stat-num {
    font-size: 3.75rem;
  }

  .stat-suffix {
    font-size: 1.875rem;
  }

  .apps,
  .services,
  .why,
  .about,
  .cta {
    padding: 8rem 0;
  }

  .display-title,
  .services-head h2,
  .why-head h2,
  .about h2 {
    font-size: 3.75rem;
  }

  .about-pills {
    grid-template-columns: repeat(5, 1fr);
  }

  .timeline {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .timeline li {
    padding-top: 1.75rem;
  }

  .timeline li::before {
    top: 0.4375rem;
    left: 50%;
    width: calc(100% + 1.25rem);
    height: 1px;
  }

  .timeline-year {
    font-size: 2.25rem;
  }

  .cta h2 {
    font-size: 4.5rem;
  }

  .cta p {
    font-size: 1.125rem;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem 0;
  }

  .footer-brand {
    max-width: 24rem;
  }

  .footer-links {
    justify-self: stretch;
    width: 100%;
  }

  .footer-bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .hero h1,
  .display-title,
  .services-head h2,
  .why-head h2,
  .about h2 {
    font-size: 4.5rem;
  }

  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .stat-card {
    border-bottom: 0;
    border-right: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
  }

  .stat-card:last-child {
    border-right: 0;
  }

  .apps-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem 1.5rem;
  }

  .why-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem 1.5rem;
  }
}

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

  .marquee-track,
  .btn .icon-sm {
    animation: none !important;
    transition: none !important;
  }

  .app-card-inner {
    transition: none !important;
  }

  .app-card.has-qr:hover .app-card-inner,
  .app-card.has-qr:focus-within .app-card-inner,
  .app-card.has-qr.is-flipped .app-card-inner {
    transform: none;
  }

  .app-card.has-qr.is-flipped .app-card-front {
    opacity: 0;
    pointer-events: none;
  }

  .app-card.has-qr.is-flipped .app-card-back {
    transform: none;
  }
}