:root {
  color-scheme: light;
  --font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  --max-width: 70rem;
  --space-xs: clamp(0.25rem, 0.2vw + 0.2rem, 0.5rem);
  --space-sm: clamp(0.5rem, 0.4vw + 0.3rem, 0.9rem);
  --space-md: clamp(1rem, 1vw + 0.5rem, 1.8rem);
  --space-lg: clamp(2rem, 2vw + 1rem, 3.5rem);
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --shadow: 0 1.5rem 3rem rgba(15, 23, 42, 0.08);
  --transition: 150ms ease;
  --text-1: #111827;
  --text-2: #374151;
  --surface-1: #ffffff;
  --surface-2: #f3f4f6;
  --surface-3: #e5e7eb;
  --accent: #2563eb;
  --accent-contrast: #ffffff;
  --border: #d1d5db;
}

[data-theme="dark"] {
  color-scheme: dark;
  --text-1: #f9fafb;
  --text-2: #d1d5db;
  --surface-1: #111827;
  --surface-2: #1f2937;
  --surface-3: #374151;
  --accent: #60a5fa;
  --accent-contrast: #111827;
  --border: #4b5563;
  --shadow: 0 1.5rem 3rem rgba(15, 23, 42, 0.4);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-family);
  background-color: var(--surface-1);
  color: var(--text-1);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

.no-js body {
  visibility: visible;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

button {
  font: inherit;
}

.skip-link {
  position: absolute;
  top: -4rem;
  left: 1rem;
  padding: var(--space-sm) var(--space-md);
  background: var(--accent);
  color: var(--accent-contrast);
  border-radius: var(--radius-sm);
  transition: transform var(--transition);
  z-index: 10;
}

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

.container {
  width: min(100% - 2 * var(--space-md), var(--max-width));
  margin: 0 auto;
}

.site-header {
  background: var(--surface-1);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(8px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  gap: var(--space-sm);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: 600;
  color: var(--text-1);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-sm);
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.nav-list a {
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

.nav-list a:focus-visible,
.nav-list a:hover {
  background: var(--surface-2);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-1);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.theme-toggle:focus-visible,
.theme-toggle:hover {
  border-color: var(--accent);
}

.theme-toggle__icon {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--surface-3) 100%);
}

.hero { 
  padding: var(--space-lg) 0;
}

.hero__layout {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}

.hero__visual {
  display: flex;
  justify-content: center;
}

.hero__screenshot {
  width: min(26rem, 100%);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: clamp(0.75rem, 1vw + 0.5rem, 1.25rem);
  background: linear-gradient(160deg, var(--surface-1), var(--surface-2));
}

[data-theme="dark"] .hero__screenshot {
  background: linear-gradient(160deg, var(--surface-2), var(--surface-3));
}

@media (min-width: 52rem) {
  .hero__layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.hero__intro {
  font-size: clamp(1.125rem, 2vw + 0.5rem, 1.5rem);
  color: var(--text-2);
}

.hero__list {
  list-style: disc;
  padding-left: 1.25rem;
  color: var(--text-2);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition);
}

.button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.button--primary {
  background: var(--accent);
  color: var(--accent-contrast);
  box-shadow: var(--shadow);
}

.button--primary:hover,
.button--primary:active {
  transform: translateY(-2px);
}

.button--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-1);
}

.button--ghost:hover,
.button--ghost:active {
  border-color: var(--accent);
  color: var(--accent);
}

.feature-grid,
.how,
.comparison,
.use-cases,
.faq,
.changelog,
.download,
.support {
  padding: var(--space-lg) 0;
}

.feature-grid__items {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 48rem) {
  .feature-grid__items {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.feature-card,
.use-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: transform var(--transition), border-color var(--transition);
}

.feature-card:hover,
.feature-card:focus-within,
.use-card:hover,
.use-card:focus-within {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.how p,
.faq p,
.changelog p,
.download p,
.support p,
.hero p,
.feature-card p,
.use-card p {
  margin-top: var(--space-sm);
}

.table-wrapper {
  margin-top: var(--space-md);
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.table-wrapper table {
  width: 100%;
  border-collapse: collapse;
  min-width: 40rem;
}

.table-wrapper th,
.table-wrapper td {
  padding: var(--space-sm);
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.table-wrapper tbody tr:nth-child(odd) {
  background: var(--surface-2);
}

.section-cta {
  margin-top: var(--space-md);
}

.use-cases__grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 42rem) {
  .use-cases__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 68rem) {
  .use-cases__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--surface-2);
}

.faq details + details {
  margin-top: var(--space-sm);
}

.faq summary {
  font-weight: 600;
  cursor: pointer;
}

.faq summary:focus-visible {
  outline: 3px solid var(--accent);
  border-radius: var(--radius-sm);
}

.changelog__list {
  padding-left: 1.5rem;
}

.download__note {
  color: var(--text-2);
}

.support__links {
  list-style: none;
  padding: 0;
  margin: var(--space-sm) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.site-footer {
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  padding: var(--space-md) 0;
}

.footer__layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

@media (min-width: 48rem) {
  .footer__layout {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-sm);
}

.footer__links a {
  color: var(--text-1);
}

.footer__links a:hover,
.footer__links a:focus {
  color: var(--accent);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}