:root {
  --bg: #0b0d12;
  --bg2: #0c1220;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.085);
  --stroke: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --tiny: rgba(255, 255, 255, 0.58);
  --shadow: 0 20px 70px rgba(0, 0, 0, 0.55);

  --brand: #00bcd4;
  --brand2: #8b5cf6;
  --good: #22c55e;

  --radius: 18px;
  --radius-sm: 14px;
  --container: 1120px;

  --header-h: 72px;
  --header-offset: calc(var(--header-h) + 14px);

  /* Solid section surfaces to avoid "double background" crossings over body gradients */
  --surface: color-mix(in oklab, var(--bg) 86%, var(--bg2));
  --surface-alt: color-mix(in oklab, var(--bg2) 84%, var(--bg));

  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Light theme (when explicitly toggled). */
[data-theme="light"] {
  --bg: #f7f8fb;
  --bg2: #edf1ff;
  --card: rgba(0, 0, 0, 0.04);
  --card2: rgba(0, 0, 0, 0.06);
  --stroke: rgba(0, 0, 0, 0.09);
  --text: rgba(0, 0, 0, 0.9);
  --muted: rgba(0, 0, 0, 0.62);
  --tiny: rgba(0, 0, 0, 0.55);
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.12);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f7f8fb;
    --bg2: #edf1ff;
    --card: rgba(0, 0, 0, 0.04);
    --card2: rgba(0, 0, 0, 0.06);
    --stroke: rgba(0, 0, 0, 0.09);
    --text: rgba(0, 0, 0, 0.9);
    --muted: rgba(0, 0, 0, 0.62);
    --tiny: rgba(0, 0, 0, 0.55);
    --shadow: 0 18px 60px rgba(0, 0, 0, 0.12);
  }
}

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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(900px 600px at 20% 10%, rgba(0, 188, 212, 0.25), transparent 60%),
    radial-gradient(800px 500px at 85% 15%, rgba(139, 92, 246, 0.22), transparent 60%),
    radial-gradient(1200px 900px at 50% 100%, rgba(0, 188, 212, 0.12), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  overflow-x: hidden;
}

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95em;
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 10px 12px;
  background: var(--card2);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  transform: translateY(-200%);
  transition: transform 160ms var(--ease);
  z-index: 1000;
}
.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  /* Keep the header clearly visible over every section. */
  background: var(--bg);
  background: color-mix(in oklab, var(--bg) 92%, var(--card2));
  border-bottom: 1px solid var(--stroke);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.14);
}

/* Offset the page so the fixed header never overlaps content. */
main {
  padding-top: var(--header-h);
}

/* Ensure hash links + JS scrollIntoView land below the fixed header. */
:where([id]) {
  scroll-margin-top: var(--header-offset);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand.small {
  font-size: 0.98rem;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background:
    radial-gradient(60% 60% at 30% 20%, rgba(0, 188, 212, 0.35), transparent 70%),
    radial-gradient(80% 80% at 70% 80%, rgba(139, 92, 246, 0.25), transparent 70%),
    color-mix(in oklab, var(--card2) 65%, transparent);
  border: 1px solid var(--stroke);
  box-shadow: 0 14px 45px rgba(0, 0, 0, 0.18);
}

.brand-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
}

.brand.small .brand-icon {
  width: 32px;
  height: 32px;
}

.brand-name {
  font-size: 1.02rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
}

.nav-links a {
  padding: 8px 10px;
  border-radius: 10px;
}
.nav-links a:hover:not(.nav-cta) {
  background: color-mix(in oklab, var(--card2) 60%, transparent);
  text-decoration: none;
  color: var(--text);
}

.nav-cta {
  color: var(--text);
  padding: 10px 14px; /* slightly more compact than main CTAs */
  font-size: 0.95rem;
}

.nav-cta:hover {
  text-decoration: none;
}

.theme-toggle {
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 60%, transparent);
  color: var(--text);
  border-radius: 12px;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform 160ms var(--ease), background 160ms var(--ease);
}
.theme-toggle:hover {
  transform: translateY(-1px);
  background: color-mix(in oklab, var(--card2) 70%, transparent);
}

.hero {
  padding: 76px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 44px;
  align-items: center;
}

.eyebrow {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 0 14px;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border: 1px solid var(--stroke);
  border-radius: 999px;
  background: color-mix(in oklab, var(--card) 70%, transparent);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.85rem;
}

.hero-title {
  margin: 0;
  font-size: clamp(2.2rem, 4.2vw, 3.55rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.hero-subtitle {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.6;
  max-width: 60ch;
}

.cta-row {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: transform 180ms var(--ease), background 180ms var(--ease), border-color 180ms var(--ease);
  user-select: none;
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  border-color: color-mix(in oklab, var(--brand) 35%, var(--stroke));
  background:
    radial-gradient(120% 140% at 10% 10%, rgba(0, 188, 212, 0.35), transparent 60%),
    radial-gradient(120% 140% at 90% 90%, rgba(139, 92, 246, 0.28), transparent 60%),
    color-mix(in oklab, var(--card2) 75%, transparent);
  box-shadow: 0 18px 60px rgba(0, 188, 212, 0.12);
}

.btn-ghost {
  background: color-mix(in oklab, var(--card) 60%, transparent);
  color: var(--text);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.meta-card {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 14px 14px;
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--card) 68%, transparent);
  border: 1px solid var(--stroke);
}

.meta-kpi {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: color-mix(in oklab, var(--card2) 75%, transparent);
}

.meta-title {
  font-weight: 800;
  letter-spacing: -0.02em;
}
.meta-sub {
  font-size: 0.9rem;
  color: var(--muted);
  margin-top: 2px;
}

.hero-visual {
  position: relative;
  min-height: 420px;
}

.glow {
  position: absolute;
  inset: -20px;
  background:
    radial-gradient(280px 220px at 20% 30%, rgba(0, 188, 212, 0.22), transparent 60%),
    radial-gradient(260px 200px at 80% 60%, rgba(139, 92, 246, 0.22), transparent 60%);
  filter: blur(12px);
  z-index: -1;
  opacity: 0.9;
}

.device {
  margin-left: auto;
  width: min(390px, 100%);
  border-radius: 28px;
  border: 1px solid var(--stroke);
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--card2) 75%, transparent), color-mix(in oklab, var(--card) 60%, transparent));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.device-body {
  padding: 16px;
}

.mock-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mock-card {
  padding: 12px;
  border-radius: 16px;
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 70%, transparent);
}

.mock-icon {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: color-mix(in oklab, var(--card2) 80%, transparent);
  margin-bottom: 10px;
  font-weight: 900;
}

.mock-title {
  font-weight: 800;
  letter-spacing: -0.02em;
}

.mock-sub {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 4px;
  line-height: 1.35;
}

.mock-qr {
  margin-top: 12px;
  border-radius: 18px;
  border: 1px solid var(--stroke);
  background:
    radial-gradient(130% 100% at 10% 0%, rgba(0, 188, 212, 0.18), transparent 60%),
    color-mix(in oklab, var(--card2) 75%, transparent);
  padding: 14px;
}

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

.qr-grid span {
  display: block;
  aspect-ratio: 1 / 1;
  border-radius: 3px;
  background: color-mix(in oklab, var(--text) 72%, transparent);
  opacity: 0.12;
}

.qr-grid span:nth-child(3n),
.qr-grid span:nth-child(7n) {
  opacity: 0.28;
}

.qr-grid span:nth-child(11n),
.qr-grid span:nth-child(13n) {
  opacity: 0.5;
}

.mock-footer {
  display: flex;
  gap: 8px;
  justify-content: space-between;
  margin-top: 12px;
}

.mock-chip {
  flex: 1;
  text-align: center;
  padding: 9px 10px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 72%, transparent);
  color: var(--muted);
  font-weight: 700;
  font-size: 0.9rem;
}

.section {
  padding: 72px 0;
  background: var(--surface);
}

.section-alt {
  background: var(--surface-alt);
  border-top: 1px solid var(--stroke);
  border-bottom: 1px solid var(--stroke);
}

.section-head {
  margin-bottom: 24px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  letter-spacing: -0.03em;
}

.section-head p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
  max-width: 70ch;
}

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

.card {
  padding: 18px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 72%, transparent);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.card h3 {
  margin: 0;
  letter-spacing: -0.02em;
}

.card p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.checklist li::before {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 6px;
  margin-top: 2px;
  background:
    radial-gradient(100% 100% at 30% 30%, rgba(34, 197, 94, 0.45), transparent 70%),
    color-mix(in oklab, var(--card2) 80%, transparent);
  border: 1px solid color-mix(in oklab, var(--good) 30%, var(--stroke));
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.step {
  display: flex;
  gap: 12px;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 72%, transparent);
}

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 900;
  color: var(--text);
  background:
    radial-gradient(120% 140% at 20% 15%, rgba(0, 188, 212, 0.28), transparent 60%),
    radial-gradient(120% 140% at 90% 90%, rgba(139, 92, 246, 0.22), transparent 60%),
    color-mix(in oklab, var(--card2) 75%, transparent);
  border: 1px solid var(--stroke);
}

.step-body h3 {
  margin: 0;
  letter-spacing: -0.02em;
}

.step-body p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.store-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.store-card {
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 72%, transparent);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.store-head {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
}

.store-badge {
  width: 64px;
  height: 38px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: -0.02em;
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card2) 78%, transparent);
}

.store-card h3 {
  margin: 0;
  letter-spacing: -0.02em;
}

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

.tiny {
  font-size: 0.9rem;
  color: var(--tiny);
  line-height: 1.5;
}

.qr-link {
  display: grid;
  place-items: center;
  border-radius: 18px;
  border: 1px dashed color-mix(in oklab, var(--stroke) 90%, transparent);
  background:
    radial-gradient(100% 100% at 20% 20%, rgba(0, 188, 212, 0.16), transparent 60%),
    radial-gradient(100% 100% at 80% 80%, rgba(139, 92, 246, 0.12), transparent 60%),
    color-mix(in oklab, var(--card2) 65%, transparent);
  padding: 16px;
  margin-top: 10px;
}

.qr {
  width: min(240px, 100%);
  height: auto;
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.18);
}

.store-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
  align-items: center;
}

.store-actions [data-copy-link] {
  margin-left: auto;
}

.download-note {
  margin-top: 14px;
}

.note-card {
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 70%, transparent);
}

.note-card p {
  margin: 6px 0 0;
}

.noscript {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 70%, transparent);
  color: var(--muted);
}

.faq {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  /* Prevent grid rows from stretching non-open items to match the open one. */
  align-items: start;
}

.faq-item {
  border-radius: var(--radius);
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 72%, transparent);
  padding: 14px 16px;
  align-self: start;
  height: fit-content;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 800;
  letter-spacing: -0.02em;
  outline: none;
}

.faq-item p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.site-footer {
  padding: 34px 0 52px;
  border-top: 1px solid var(--stroke);
  background: var(--surface-alt);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.6fr 1.2fr;
  gap: 18px;
  align-items: start;
}

.footer-links {
  display: grid;
  gap: 8px;
  color: var(--muted);
}

.link-btn {
  appearance: none;
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
  font: inherit;
}

.link-btn:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.footer-legal {
  justify-self: end;
  text-align: right;
}

.modal[hidden] {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.58);
  backdrop-filter: blur(10px);
}

.modal-dialog {
  position: relative;
  width: min(860px, calc(100% - 32px));
  max-height: min(80vh, 720px);
  overflow: hidden;
  margin: calc(var(--header-h) + 18px) auto 20px;
  border-radius: 20px;
  border: 1px solid var(--stroke);
  background: var(--surface);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 18px 10px;
  border-bottom: 1px solid var(--stroke);
  flex: 0 0 auto;
}

.modal-title {
  margin: 0;
  letter-spacing: -0.03em;
}

.modal-sub {
  margin: 6px 0 0;
  line-height: 1.55;
}

.icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 70%, transparent);
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform 160ms var(--ease), background 160ms var(--ease);
}

.icon-btn:hover {
  transform: translateY(-1px);
  background: color-mix(in oklab, var(--card2) 75%, transparent);
}

.modal-body {
  padding: 14px 18px 18px;
  overflow: auto;
  flex: 1 1 auto;
  scrollbar-width: thin; /* Firefox */
  scrollbar-color:
    color-mix(in oklab, var(--text) 28%, transparent)
    color-mix(in oklab, var(--card) 55%, transparent);
}

.modal-body::-webkit-scrollbar {
  width: 10px;
}

.modal-body::-webkit-scrollbar-track {
  background: color-mix(in oklab, var(--card) 55%, transparent);
  border-radius: 999px;
}

.modal-body::-webkit-scrollbar-thumb {
  background: color-mix(in oklab, var(--text) 26%, transparent);
  border: 2px solid color-mix(in oklab, var(--card) 55%, transparent);
  border-radius: 999px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
  background: color-mix(in oklab, var(--text) 36%, transparent);
}

.policy h3 {
  margin: 18px 0 8px;
  letter-spacing: -0.02em;
}

.policy ul {
  margin: 10px 0 0;
  padding-left: 18px;
  line-height: 1.7;
}

.policy .checklist {
  padding-left: 0;
}

.policy p {
  line-height: 1.65;
}

.modal-actions {
  padding: 12px 18px 18px;
  border-top: 1px solid var(--stroke);
  display: flex;
  justify-content: flex-end;
  flex: 0 0 auto;
}

.toast {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card2) 82%, transparent);
  color: var(--text);
  box-shadow: var(--shadow);
  z-index: 50;
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}

@media (max-width: 980px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .hero-visual {
    /* order: -1; */
    display: none;
  }
  .device {
    margin: 0 auto;
  }
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .store-grid {
    grid-template-columns: 1fr;
  }
  .faq {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-legal {
    justify-self: start;
    text-align: left;
  }
  .hero-meta {
    grid-template-columns: 1fr;
  }
}

/* Mobile: hide hero preview block entirely */
@media (max-width: 680px) {
  .feature-grid {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .container {
    width: min(var(--container), calc(100% - 32px));
  }
  .nav-links a {
    display: none;
  }
}