html[data-theme="day"] {
  color-scheme: light;
  --os-ground: #F4F4F2;
  --os-fam-surface: #F4F4F2;
  --os-surface: #FFFFFF;
  --os-surface-soft: #EDEDE9;
  --os-ink: #0a0a0f;
  --os-muted: #55555E;
  --os-blue: #1D4AFF;
  --os-blue-press: #1230C4;
  --os-blue-wash: rgba(29, 74, 255, 0.08);
  --os-rule: #D2D2CA;
  --os-rule-subtle: #E5E5DE;
  background: var(--os-ground);
  color: var(--os-ink);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--os-fam-surface);
  color: var(--os-ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.top, main, footer {
  max-width: 66rem;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Brand */
.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  padding-bottom: 24px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--os-ink);
}

.mark {
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  display: block;
}

.wordmark {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--os-ink);
}

.top nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 22px;
}

.top nav a {
  color: var(--os-muted);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.12s;
}

.top nav a:hover {
  color: var(--os-blue);
  text-decoration: none;
}

/* Main Content */
main {
  padding-top: 24px;
  padding-bottom: 72px;
}

/* Hero Tactile (Side by Side) */
.hero-tactile {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  padding: 32px 0 48px;
}

@media (max-width: 860px) {
  .hero-tactile {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 16px 0 36px;
  }
}

.kicker {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--os-blue);
  margin-bottom: 14px;
  display: block;
}

h1 {
  font-size: clamp(34px, 5vw, 50px);
  line-height: 1.06;
  letter-spacing: -0.035em;
  font-weight: 800;
  margin: 0 0 18px;
  max-width: 18ch;
}

.lede {
  font-size: 17.5px;
  line-height: 1.5;
  color: var(--os-muted);
  margin-bottom: 28px;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 600;
  padding: 11px 20px;
  border-radius: 9px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.12s ease;
  line-height: 1.2;
}

.btn-primary {
  background: var(--os-blue);
  color: #FFFFFF;
  border: 1px solid var(--os-blue);
}

.btn-primary:hover {
  background: var(--os-blue-press);
  border-color: var(--os-blue-press);
}

.btn-outline {
  background: transparent;
  color: var(--os-ink);
  border: 1px solid var(--os-rule);
}

.btn-outline:hover {
  background: var(--os-surface);
  border-color: var(--os-ink);
}

.proof-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--os-muted);
  border-top: 1px solid var(--os-rule);
  padding-top: 18px;
}

.proof-badges span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.proof-badges svg {
  color: var(--os-blue);
}

/* Device Card */
.device-card {
  background: var(--os-surface);
  border: 1px solid var(--os-rule);
  border-radius: 20px;
  padding: 14px;
  box-shadow: 0 12px 36px -16px rgba(10, 10, 15, 0.08);
  max-width: 22rem;
  margin: 0 auto;
}

.device-card img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
  background: var(--os-ground);
}

.device-card figcaption {
  font-size: 12px;
  color: var(--os-muted);
  text-align: center;
  margin-top: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* Feature 3-Cards */
.feature-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 48px 0;
}

@media (max-width: 768px) {
  .feature-cards {
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 36px 0;
  }
}

.feature-card {
  background: var(--os-surface);
  border: 1px solid var(--os-rule);
  border-radius: 14px;
  padding: 22px;
}

.feature-card h3 {
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--os-muted);
  line-height: 1.5;
}

/* Privacy Table Section */
.privacy-section {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--os-rule);
}

.privacy-section h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 16px;
  font-size: 14px;
}

th, td {
  text-align: left;
  vertical-align: top;
  padding: 12px 14px 12px 0;
  border-bottom: 1px solid var(--os-rule);
}

th {
  font-weight: 600;
  color: var(--os-muted);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

td code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  background: var(--os-surface-soft);
  padding: 2px 6px;
  border-radius: 4px;
}

.privacy-note {
  font-size: 13.5px;
  color: var(--os-muted);
  margin-top: 12px;
}

/* Sidekick Section */
.sidekick-section {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--os-rule);
}

.sidekick-section h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.sidekick-section p {
  font-size: 14.5px;
  color: var(--os-muted);
  line-height: 1.55;
  max-width: 60ch;
  margin-bottom: 12px;
}

.state {
  font-size: 13px;
  color: var(--os-muted);
  padding: 10px 14px;
  background: var(--os-surface-soft);
  border-radius: 8px;
  display: inline-block;
}

/* Footer */
footer {
  border-top: 1px solid var(--os-rule);
  padding-top: 32px;
  padding-bottom: 48px;
  color: var(--os-muted);
  font-size: 13.5px;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 14px;
}

footer nav a {
  color: var(--os-muted);
  text-decoration: underline;
  text-decoration-color: var(--os-rule);
  text-underline-offset: 3px;
  transition: color 0.12s;
}

footer nav a:hover {
  color: var(--os-blue);
}

footer p {
  margin: 0;
  font-size: 13px;
}

footer a {
  color: inherit;
}

/* Accessibility */
.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--os-surface);
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--os-rule);
  z-index: 1000;
}

.skip:focus {
  left: 8px;
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--os-blue);
  outline-offset: 2px;
}

/* Responsive Table */
@media (max-width: 640px) {
  table, tbody, tr, td {
    display: block;
  }
  thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }
  tr {
    padding: 12px 0;
    border-bottom: 1px solid var(--os-rule);
  }
  tr:last-child {
    border-bottom: 0;
  }
  td {
    border: 0;
    padding: 3px 0;
  }
  td[data-label="What"] {
    font-weight: 700;
    padding-bottom: 4px;
  }
  td:not([data-label="What"])::before {
    content: attr(data-label) " · ";
    color: var(--os-muted);
    font-size: 11px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }
  td.none {
    display: none;
  }
}