:root {
  --max-bg: #ffffff;
  --max-bg-secondary: #f2f2f7;
  --max-fg: #000000;
  --max-fg-secondary: #8e8e93;
  --max-accent: #007aff;
  --max-accent-fg: #ffffff;
  --max-muted: #e5e5ea;
  --max-border: #e5e5ea;
  --max-destructive: #ff3b30;
  --site-gutter: clamp(1.25rem, 4vw, 3rem);
  --site-content-max: min(1200px, calc(100vw - 2 * var(--site-gutter)));
}

.dark {
  --max-bg: #1c1c1e;
  --max-bg-secondary: #2c2c2e;
  --max-fg: #ffffff;
  --max-fg-secondary: #8e8e93;
  --max-accent: #0a84ff;
  --max-accent-fg: #ffffff;
  --max-muted: #3a3a3c;
  --max-border: #38383a;
  --max-destructive: #ff453a;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--max-bg);
  color: var(--max-fg);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
}

.dots-pattern {
  --dot-size: 1px;
  --pattern-gap: 8px;
  background-color: var(--max-bg);
  background-image: radial-gradient(
    var(--max-border) var(--dot-size),
    transparent var(--dot-size)
  );
  background-size: var(--pattern-gap) var(--pattern-gap);
}

.site-wrap {
  padding-left: var(--site-gutter);
  padding-right: var(--site-gutter);
}

.site-inner {
  width: 100%;
  max-width: var(--site-content-max);
  margin-left: auto;
  margin-right: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--max-border);
  background-color: color-mix(in srgb, var(--max-bg) 92%, transparent);
  backdrop-filter: blur(10px);
}

.site-header .site-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--max-fg);
  text-decoration: none;
}

.brand-logo {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  object-fit: contain;
}

.brand:hover {
  color: var(--max-accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle {
  border: 1px solid var(--max-border);
  background: var(--max-bg-secondary);
  color: var(--max-fg);
  border-radius: 10px;
  padding: 0.35rem 0.65rem;
  font-size: 0.8125rem;
  cursor: pointer;
}

.theme-toggle:hover {
  border-color: var(--max-accent);
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 0.5em;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 600;
}

h3 {
  font-size: 1rem;
  font-weight: 600;
}

p {
  margin: 0 0 1em;
  color: var(--max-fg-secondary);
  max-width: 65ch;
}

p:last-child {
  margin-bottom: 0;
}

.lead {
  font-size: 1.125rem;
  color: var(--max-fg-secondary);
  max-width: 52rem;
}

.section {
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.section-muted {
  background-color: var(--max-bg-secondary);
}

.kicker {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--max-accent);
  margin-bottom: 0.5rem;
}

.hero {
  padding-top: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.hero-grid {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.15fr 1fr;
    align-items: center;
  }
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 12px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--max-accent);
  color: var(--max-accent-fg);
}

.btn-primary:hover {
  opacity: 0.92;
}

.btn-secondary {
  background: var(--max-bg);
  color: var(--max-accent);
  border: 1px solid var(--max-border);
}

.btn-secondary:hover {
  border-color: var(--max-accent);
}

.micro-trust {
  margin-top: 1rem;
  font-size: 0.8125rem;
  color: var(--max-fg-secondary);
}

.mock-device {
  border-radius: 28px;
  border: 1px solid var(--max-border);
  background: var(--max-bg-secondary);
  padding: 12px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.08);
}

.dark .mock-device {
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
}

.mock-screen {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--max-border);
  background: var(--max-bg);
}

.mock-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--max-border);
  background: var(--max-bg);
}

.mock-header h4 {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--max-fg);
}

.mock-header span {
  display: block;
  font-size: 0.75rem;
  color: var(--max-fg-secondary);
  margin-top: 0.15rem;
}

.mock-body {
  padding: 0.75rem;
  min-height: 200px;
}

.mock-comment {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--max-border);
}

.mock-comment:last-child {
  border-bottom: none;
}

.mock-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--max-accent), #5ac8fa);
  flex-shrink: 0;
}

.mock-bubble {
  flex: 1;
  min-width: 0;
}

.mock-meta {
  font-size: 0.6875rem;
  color: var(--max-fg-secondary);
  margin-bottom: 0.15rem;
}

.mock-text {
  font-size: 0.8125rem;
  color: var(--max-fg);
}

.mock-footer {
  padding: 0.5rem 0.75rem;
  border-top: 1px solid var(--max-border);
  display: flex;
  justify-content: center;
}

.mock-pill {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: var(--max-accent);
  color: var(--max-accent-fg);
  font-size: 0.75rem;
  font-weight: 600;
}

.grid-features {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (min-width: 640px) {
  .grid-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-features {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  border: 1px solid var(--max-border);
  border-radius: 12px;
  padding: 1.25rem;
  background: var(--max-bg);
}

.section-muted .card {
  background: var(--max-bg);
}

.card h3 {
  color: var(--max-fg);
  margin-bottom: 0.35rem;
}

.card p {
  font-size: 0.875rem;
  margin: 0;
}

.steps {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
  counter-reset: step;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step {
  position: relative;
  border: 1px solid var(--max-border);
  border-radius: 12px;
  padding: 1.25rem 1.25rem 1.25rem 3rem;
  background: var(--max-bg);
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 1.1rem;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 8px;
  background: var(--max-accent);
  color: var(--max-accent-fg);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.callout {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  border: 1px dashed var(--max-border);
  background: color-mix(in srgb, var(--max-accent) 6%, var(--max-bg));
  font-size: 0.875rem;
  color: var(--max-fg-secondary);
}

.callout code {
  font-size: 0.8125rem;
  padding: 0.1rem 0.35rem;
  border-radius: 6px;
  background: var(--max-bg-secondary);
  color: var(--max-fg);
}

.two-col {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

@media (min-width: 768px) {
  .two-col {
    grid-template-columns: 1fr 1fr;
  }
}

.faq {
  margin-top: 1.5rem;
  border-top: 1px solid var(--max-border);
}

.faq-item {
  border-bottom: 1px solid var(--max-border);
  padding: 1rem 0;
}

.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  color: var(--max-fg);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.faq-item summary::after {
  content: '+';
  font-weight: 400;
  color: var(--max-fg-secondary);
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item p {
  margin-top: 0.75rem;
  margin-bottom: 0;
  font-size: 0.9375rem;
}

.timeline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.timeline span {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--max-border);
  background: var(--max-bg);
  color: var(--max-fg-secondary);
}

.timeline span strong {
  color: var(--max-fg);
  font-weight: 600;
}

.site-footer {
  border-top: 1px solid var(--max-border);
  padding: 2rem 0 3rem;
  font-size: 0.8125rem;
  color: var(--max-fg-secondary);
}

.site-footer a {
  color: var(--max-accent);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--max-accent);
  color: var(--max-accent-fg);
  border-radius: 8px;
}

.skip-link:focus {
  left: 0.5rem;
}