:root {
  --primary-50: #fffbea;
  --primary-100: #fff4c6;
  --primary-400: #ffd73a;
  --primary-500: #ffd21a;
  --primary-600: #e0b800;
  --accent-800: #131313;
  --accent-900: #0a0a0a;
  --secondary-400: #ff7043;
  --neutral-50: #f9fafb;
  --neutral-100: #f3f4f6;
  --neutral-200: #e5e7eb;
  --neutral-300: #d1d5db;
  --neutral-400: #9ca3af;
  --neutral-500: #6b7280;
  --neutral-700: #374151;
  --neutral-800: #1f2937;
  --white: #ffffff;
  --soft-white: #fafafa;
  --shadow: 0 24px 70px rgba(19, 19, 19, 0.12);
  --shadow-sm: 0 4px 20px rgba(19, 19, 19, 0.04);
  --shadow-md: 0 12px 34px rgba(17, 24, 39, 0.08);
  --shadow-lg: 0 24px 50px rgba(17, 24, 39, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --max-width: 1160px;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: 'Outfit', sans-serif;
  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--neutral-800);
  background:
    radial-gradient(circle at 8% 18%, rgba(255, 210, 26, 0.25), transparent 30rem),
    radial-gradient(circle at 94% 14%, rgba(255, 112, 67, 0.1), transparent 26rem),
    radial-gradient(circle at 45% 50%, rgba(255, 210, 26, 0.06), transparent 28rem),
    linear-gradient(180deg, var(--soft-white) 0%, var(--white) 35%, var(--primary-50) 100%);
  font-family: var(--font-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

.site-header {
  position: sticky;
  top: 14px;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 32px), var(--max-width));
  margin: 14px auto 0;
  padding: 8px 10px 8px 20px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: var(--transition);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  color: var(--accent-800);
  font-family: var(--font-display);
  font-size: 18px;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  box-shadow: 0 6px 16px rgba(224, 184, 0, 0.2);
  transition: var(--transition);
}

.brand:hover img {
  transform: scale(1.05) rotate(5deg);
  box-shadow: 0 8px 24px rgba(224, 184, 0, 0.35);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: 999px;
  color: var(--neutral-500);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a:not(.header-cta):hover {
  color: var(--accent-900);
  background: rgba(255, 210, 26, 0.12);
}

.header-cta {
  background: var(--accent-900);
  color: var(--white) !important;
  font-weight: 800 !important;
  box-shadow: 0 4px 14px rgba(10, 10, 10, 0.15);
  transition: var(--transition-fast) !important;
}

.header-cta:hover {
  background: var(--primary-500) !important;
  color: var(--accent-900) !important;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255, 210, 26, 0.35);
}

.section-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 64px;
  align-items: center;
  min-height: calc(100vh - 100px);
  padding: 48px 0 80px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin: 0 0 20px;
  padding: 8px 16px;
  color: var(--accent-900);
  background: var(--primary-100);
  border: 1px solid rgba(255, 210, 26, 0.4);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1.5px;
  font-family: var(--font-display);
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 720px;
  margin-bottom: 24px;
  color: var(--accent-900);
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -1.5px;
}

h2 {
  margin-bottom: 16px;
  color: var(--accent-900);
  font-family: var(--font-display);
  font-size: clamp(28px, 3.8vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.8px;
}

h3 {
  margin-bottom: 12px;
  color: var(--accent-900);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
}

.hero-desc,
.section-heading p,
.download-card p,
.flow-step p,
.feature-card p,
.screen-card p,
.site-footer p {
  color: var(--neutral-500);
  font-size: 16px;
  line-height: 1.8;
}

.hero-desc {
  max-width: 620px;
  margin-bottom: 36px;
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 42px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 28px;
  border-radius: 16px;
  font-weight: 800;
  font-family: var(--font-display);
  font-size: 16px;
  transition: var(--transition-fast);
}

.btn.primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--accent-800) 0%, var(--accent-900) 100%);
  box-shadow: 0 10px 24px rgba(10, 10, 10, 0.15);
  position: relative;
  overflow: hidden;
}

.btn.primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.15) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-25deg);
  transition: 0.75s;
  opacity: 0;
}

.btn.primary:hover::after {
  opacity: 1;
  left: 125%;
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(10, 10, 10, 0.25);
  background: #000000;
}

.btn.secondary {
  color: var(--accent-800);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--neutral-200);
  backdrop-filter: blur(8px);
}

.btn.secondary:hover {
  transform: translateY(-2px);
  background: var(--white);
  border-color: var(--neutral-300);
  box-shadow: var(--shadow-sm);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 620px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero-metrics div {
  padding: 20px;
  transition: var(--transition-fast);
}

.hero-metrics div:hover {
  background: rgba(255, 210, 26, 0.08);
}

.hero-metrics div + div {
  border-left: 1px solid rgba(0, 0, 0, 0.06);
}

.hero-metrics strong,
.hero-metrics span {
  display: block;
}

.hero-metrics strong {
  margin-bottom: 6px;
  color: var(--accent-900);
  font-size: 18px;
  font-family: var(--font-display);
  font-weight: 800;
}

.hero-metrics span {
  color: var(--neutral-500);
  font-size: 13px;
  font-weight: 500;
}

.hero-media {
  display: flex;
  justify-content: center;
  position: relative;
}

/* Premium Phone Mockup Styling */
.phone-mockup-wrapper {
  position: relative;
  width: min(100%, 300px);
  display: flex;
  justify-content: center;
  z-index: 5;
  animation: float 6s ease-in-out infinite;
}

.phone-glow {
  position: absolute;
  top: 10%;
  left: 10%;
  width: 80%;
  height: 80%;
  background: radial-gradient(circle, var(--primary-500) 0%, rgba(255, 210, 26, 0) 70%);
  filter: blur(48px);
  opacity: 0.5;
  z-index: -1;
  pointer-events: none;
}

.phone-device {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 19.5;
  background: #111111;
  border-radius: 40px;
  padding: 0;
  box-shadow: 
    0 25px 60px -15px rgba(0, 0, 0, 0.35),
    inset 0 0 2px 2px rgba(255, 255, 255, 0.1),
    inset 0 0 0 1px rgba(255, 255, 255, 0.2);
  border: 4.5px solid #28282c;
  overflow: hidden;
}

.phone-screen-glare {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0) 45%);
  z-index: 10;
  pointer-events: none;
}

.phone-island {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 74px;
  height: 18px;
  background: #000000;
  border-radius: 99px;
  z-index: 15;
  box-shadow: 0 1px 2px rgba(255, 255, 255, 0.15);
}

.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 36px;
  background: #000;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

@keyframes float {
  0% {
    transform: translateY(0) rotate(1deg);
  }
  50% {
    transform: translateY(-8px) rotate(2deg);
  }
  100% {
    transform: translateY(0) rotate(1deg);
  }
}

.feature-intro {
  padding: 80px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 48px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.feature-card,
.flow-step,
.screen-card,
.download-card {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(229, 231, 235, 0.6);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: var(--transition);
}

.feature-card {
  min-height: 240px;
  padding: 28px;
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-8px);
  background: var(--white);
  border-color: rgba(255, 210, 26, 0.6);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 28px;
  color: var(--accent-900);
  background: linear-gradient(135deg, var(--primary-100) 0%, var(--primary-500) 100%);
  border-radius: 16px;
  transition: var(--transition);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent-900);
  transition: var(--transition);
}

.feature-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--accent-900);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 99px;
  border: 1px solid var(--white);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--accent-800) 0%, var(--accent-900) 100%);
  transform: scale(1.05) rotate(-3deg);
}

.feature-card:hover .feature-icon svg {
  stroke: var(--primary-500);
}

.feature-card:hover .feature-badge {
  background: var(--primary-500);
  color: var(--accent-900);
  border-color: var(--accent-900);
}

.flow-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: start;
  padding: 64px 0 80px;
}

.flow-copy {
  position: sticky;
  top: 120px;
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.flow-step {
  min-height: 190px;
  padding: 28px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.65);
}

.flow-step:hover {
  transform: translateY(-4px);
  background: var(--white);
  border-color: rgba(255, 210, 26, 0.4);
  box-shadow: var(--shadow-md);
}

.flow-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 22px;
  color: var(--accent-900);
  background: var(--primary-500);
  border-radius: 50%;
  font-weight: 900;
  font-family: var(--font-display);
  font-size: 16px;
  box-shadow: 0 4px 12px rgba(255, 210, 26, 0.3);
  transition: var(--transition);
}

.flow-step:hover span {
  transform: scale(1.1) rotate(360deg);
  background: var(--accent-900);
  color: var(--primary-500);
  box-shadow: 0 4px 12px rgba(10, 10, 10, 0.15);
}

.flow-step strong {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-900);
  font-size: 20px;
  font-family: var(--font-display);
  font-weight: 800;
}

.screens-section {
  padding: 80px 0;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 244, 198, 0.4), rgba(255, 255, 255, 0.6)),
    var(--primary-50);
}

.screen-rail {
  display: grid;
  grid-auto-columns: minmax(260px, 340px);
  grid-auto-flow: column;
  gap: 24px;
  width: 100%;
  padding: 0 max(16px, calc((100vw - var(--max-width)) / 2)) 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
}

.screen-rail::-webkit-scrollbar {
  height: 6px;
}

.screen-rail::-webkit-scrollbar-track {
  background: transparent;
}

.screen-rail::-webkit-scrollbar-thumb {
  background: var(--neutral-300);
  border-radius: 99px;
}

.screen-rail::-webkit-scrollbar-thumb:hover {
  background: var(--primary-500);
}

.screen-card {
  scroll-snap-align: start;
  padding: 14px 14px 28px;
  border-radius: 24px;
  background: var(--white);
  border: 1px solid rgba(229, 231, 235, 0.6);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.screen-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 210, 26, 0.4);
}

.screen-card img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  object-position: top center;
  border-radius: 16px;
  background: var(--neutral-100);
  transition: var(--transition);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.05);
}

.screen-card h3,
.screen-card p {
  padding: 0 8px;
}

.screen-card h3 {
  margin-top: 20px;
  font-family: var(--font-display);
}

.download-section {
  padding: 96px 0;
}

.download-card {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 48px;
  align-items: center;
  padding: 48px 56px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 10% 20%, rgba(255, 210, 26, 0.12), transparent 20rem),
    radial-gradient(circle at 90% 80%, rgba(255, 112, 67, 0.08), transparent 20rem),
    var(--accent-900);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 30px 70px rgba(10, 10, 10, 0.4);
  position: relative;
  overflow: hidden;
}

.download-card h2 {
  color: var(--white);
  max-width: 760px;
}

.download-card p {
  color: var(--neutral-400);
}

.download-info {
  display: flex;
  flex-direction: column;
}

.download-sublinks {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
}

.download-sublinks .divider {
  color: rgba(255, 255, 255, 0.15);
}

.download-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  justify-content: flex-end;
}

.store-button {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  min-width: 180px;
  min-height: 56px;
  padding: 8px 20px;
  color: var(--accent-900);
  background: var(--white);
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  transition: var(--transition-fast);
}

.store-button span {
  font-size: 11px;
  line-height: 1.1;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--neutral-500);
}

.store-button strong {
  font-size: 20px;
  line-height: 1.2;
  font-family: var(--font-display);
  font-weight: 800;
}

.store-button:hover {
  background: var(--primary-500);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(255, 210, 26, 0.3);
}

.download-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.qr-box {
  position: relative;
  width: 110px;
  height: 110px;
  background: var(--white);
  border-radius: 12px;
  padding: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  overflow: hidden;
}

.qr-box:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 30px rgba(255, 210, 26, 0.25);
}

.qr-code-svg {
  width: 100%;
  height: 100%;
  color: var(--accent-900);
}

.qr-border-corner {
  position: absolute;
  width: 12px;
  height: 12px;
  border: 2px solid var(--primary-500);
  pointer-events: none;
}

.qr-border-corner.top-left { top: 4px; left: 4px; border-right: none; border-bottom: none; border-top-left-radius: 4px; }
.qr-border-corner.top-right { top: 4px; right: 4px; border-left: none; border-bottom: none; border-top-right-radius: 4px; }
.qr-border-corner.bottom-left { bottom: 4px; left: 4px; border-right: none; border-top: none; border-bottom-left-radius: 4px; }
.qr-border-corner.bottom-right { bottom: 4px; right: 4px; border-left: none; border-top: none; border-bottom-right-radius: 4px; }

.qr-scanner-line {
  position: absolute;
  left: 4px;
  width: calc(100% - 8px);
  height: 2px;
  background: linear-gradient(to right, rgba(255, 210, 26, 0), var(--primary-500), rgba(255, 210, 26, 0));
  animation: qrScan 2.5s ease-in-out infinite;
  z-index: 2;
}

@keyframes qrScan {
  0% { top: 6px; }
  50% { top: calc(100% - 8px); }
  100% { top: 6px; }
}

.download-qr span {
  font-size: 11px;
  color: var(--neutral-500);
  font-weight: 700;
}

.text-link {
  color: var(--neutral-400);
  font-size: 14px;
  font-weight: 700;
}

.text-link:hover {
  color: var(--primary-500);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 32px 0 48px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer-brand img {
  width: 36px;
  height: 36px;
}

.site-footer p {
  margin: 0;
  font-size: 14px;
}

.footer-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  text-align: right;
}

.footer-meta a {
  color: var(--neutral-700);
  font-weight: 700;
}

.footer-meta a:hover {
  color: var(--accent-800);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Feature Showcase Section */
.showcase-section {
  padding: 100px 0;
  background:
    radial-gradient(circle at 90% 10%, rgba(255, 210, 26, 0.08), transparent 28rem),
    radial-gradient(circle at 10% 80%, rgba(255, 112, 67, 0.05), transparent 28rem),
    var(--white);
  border-top: 1px solid rgba(0, 0, 0, 0.03);
}

.showcase-row {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 80px;
  align-items: center;
  margin-bottom: 120px;
}

.showcase-row:last-child {
  margin-bottom: 0;
}

.showcase-row.reverse {
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
}

.showcase-row.reverse .showcase-copy {
  grid-column: 2;
}

.showcase-row.reverse .showcase-media {
  grid-column: 1;
  grid-row: 1;
}

.showcase-copy {
  display: flex;
  flex-direction: column;
}

.showcase-copy h3 {
  font-size: clamp(26px, 3.5vw, 38px);
  margin-bottom: 20px;
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.2;
  color: var(--accent-900);
}

.showcase-copy p {
  color: var(--neutral-500);
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 28px;
}

.showcase-features-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.showcase-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--neutral-700);
  line-height: 1.5;
}

.showcase-features-list li svg {
  width: 20px;
  height: 20px;
  color: var(--primary-600);
  flex-shrink: 0;
  margin-top: 1px;
}

.showcase-media {
  display: flex;
  justify-content: center;
  position: relative;
}

.showcase-media .phone-mockup-wrapper {
  width: min(100%, 260px);
  animation: float-micro 6s ease-in-out infinite;
}

.showcase-media .phone-device {
  border-radius: 36px;
  border-width: 4px;
}

.showcase-media .phone-screen {
  border-radius: 32px;
}

@keyframes float-micro {
  0% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
  100% { transform: translateY(0); }
}

@media (max-width: 900px) {
  .hero,
  .flow-section,
  .download-card {
    grid-template-columns: 1fr;
  }

  .showcase-row,
  .showcase-row.reverse {
    grid-template-columns: 1fr !important;
    gap: 40px;
    margin-bottom: 80px;
  }

  .showcase-row.reverse .showcase-copy {
    grid-column: auto !important;
  }

  .showcase-row.reverse .showcase-media {
    grid-column: auto !important;
    grid-row: auto !important;
  }

  .showcase-media .phone-mockup-wrapper {
    width: min(75vw, 240px) !important;
    animation: float-mobile 6s ease-in-out infinite !important;
  }

  .hero {
    gap: 48px;
    padding-top: 32px;
  }

  .phone-mockup-wrapper {
    width: min(85vw, 340px);
    transform: none !important;
    animation: float-mobile 6s ease-in-out infinite;
  }

  @keyframes float-mobile {
    0% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0); }
  }

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

  .flow-copy {
    position: static;
  }

  .download-card {
    text-align: center;
    padding: 40px 32px;
    gap: 32px;
  }

  .download-info {
    align-items: center;
  }

  .download-sublinks {
    justify-content: center;
  }

  .download-actions {
    justify-content: center;
    width: 100%;
  }
}

@media (max-width: 640px) {
  .site-header {
    border-radius: 22px;
    padding: 8px 10px 8px 16px;
  }

  .nav-links a {
    padding: 8px 10px;
    font-size: 13px;
  }

  .brand span {
    display: none;
  }

  h1 {
    font-size: 38px;
    letter-spacing: -1px;
  }

  .hero-desc {
    font-size: 17px;
  }

  .hero-metrics,
  .feature-grid,
  .flow-steps {
    grid-template-columns: 1fr;
  }

  .hero-metrics div + div {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    border-left: 0;
  }

  .feature-card {
    min-height: 0;
  }

  .screen-rail {
    grid-auto-columns: minmax(248px, 78vw);
    gap: 16px;
  }

  .screen-card img {
    height: 440px;
  }

  .download-actions {
    flex-direction: column;
    gap: 20px;
  }
  
  .store-button {
    width: 100%;
    align-items: center;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 20px;
  }

  .footer-meta {
    align-items: flex-start;
    text-align: left;
  }
}