:root {
  color-scheme: light dark;
  --bg: #e8eaef;
  --surface: #ffffff;
  --border: #d4d4d8;
  --text: #18181b;
  --muted: #71717a;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.12);

  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.55);
  --glass-shadow: 0 4px 24px rgba(15, 23, 42, 0.08), 0 1px 0 rgba(255, 255, 255, 0.6) inset;
  --glass-blur: 14px;
  --chrome-bg: rgba(255, 255, 255, 0.76);
  --chrome-border: rgba(148, 163, 184, 0.45);
  --control-bg: rgba(255, 255, 255, 0.56);
  --workspace-bg: #e7e9ed;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 0.75rem;
  --space-lg: 1rem;
  --space-xl: 1.5rem;
  --space-2xl: 2.5rem;
  --space-3xl: 4rem;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --max-width: 1120px;

  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1c22;
    --surface: #3a3d44;
    --border: #555963;
    --text: #f4f6f8;
    --muted: #c4c9d1;
    --accent: #6da7ff;
    --accent-hover: #8bb9ff;
    --accent-soft: rgba(109, 167, 255, 0.14);

    --glass-bg: rgba(58, 61, 68, 0.82);
    --glass-border: rgba(255, 255, 255, 0.14);
    --glass-shadow: 0 4px 18px rgba(15, 23, 42, 0.2), 0 1px 0 rgba(255, 255, 255, 0.08) inset;
    --chrome-bg: rgba(44, 47, 54, 0.86);
    --chrome-border: rgba(255, 255, 255, 0.12);
    --control-bg: rgba(255, 255, 255, 0.06);
    --workspace-bg: #2a2d34;
  }
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

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

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

@supports (backdrop-filter: blur(1px)) {
  .glass {
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
  }
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--chrome-border);
  background: var(--chrome-bg);
}

@supports (backdrop-filter: blur(1px)) {
  .site-header {
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
  }
}

.site-header .container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding-block: var(--space-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 0;
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.brand:hover {
  color: var(--text);
  text-decoration: none;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  font-size: 0.9375rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--accent);
}

.nav-download {
  color: #fff;
}

.nav-download:hover {
  color: #fff;
}

/* Hamburger toggle (mobile only) */
.nav-toggle {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.nav-toggle-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0 9px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--control-bg);
  cursor: pointer;
}

.nav-toggle-btn span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle:focus-visible + .nav-toggle-btn {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  font: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.15s;
}

.btn:hover {
  text-decoration: none;
}

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

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
}

.btn-secondary {
  background: var(--control-bg);
  border-color: var(--border);
  color: var(--text);
}

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

/* Hero */
.hero {
  padding-block: var(--space-3xl) var(--space-2xl);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero-content h1 {
  margin: 0 0 var(--space-md);
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero-tagline {
  margin: 0 0 var(--space-xl);
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 36ch;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.hero-badges img {
  height: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.hero-note {
  margin-top: var(--space-lg);
  font-size: 0.875rem;
  color: var(--muted);
}

/* App mockup */
.app-mockup {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--chrome-border);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.18);
}

.mockup-titlebar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--chrome-bg);
  border-bottom: 1px solid var(--chrome-border);
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.mockup-dots span:first-child {
  background: #ff5f57;
}

.mockup-dots span:nth-child(2) {
  background: #febc2e;
}

.mockup-dots span:nth-child(3) {
  background: #28c840;
}

.mockup-title {
  flex: 1;
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
}

.mockup-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm);
  background: var(--chrome-bg);
  border-bottom: 1px solid var(--chrome-border);
}

.mockup-toolbar-group {
  display: flex;
  gap: 2px;
  padding: 2px;
  border-radius: var(--radius-md);
  background: var(--control-bg);
  border: 1px solid color-mix(in srgb, var(--chrome-border) 75%, transparent);
}

.mockup-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
}

.mockup-btn.primary {
  background: var(--accent);
  color: #fff;
  width: auto;
  padding: 0 10px;
  font-size: 0.6875rem;
  font-weight: 600;
}

.mockup-btn svg {
  width: 14px;
  height: 14px;
}

.mockup-spacer {
  flex: 1;
}

.mockup-zoom {
  font-size: 0.6875rem;
  color: var(--muted);
  min-width: 2rem;
  text-align: center;
}

.mockup-context {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin: var(--space-sm) var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  background: var(--chrome-bg);
  border: 1px solid var(--chrome-border);
  font-size: 0.75rem;
}

.mockup-context svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
}

.mockup-context-name {
  font-weight: 600;
  white-space: nowrap;
}

.mockup-context-path {
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mockup-workspace {
  background: var(--workspace-bg);
  padding: var(--space-lg);
  min-height: 280px;
}

.mockup-page {
  max-width: 220px;
  margin-inline: auto;
  background: #fff;
  color: #18181b;
  border-radius: 2px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.18);
  padding: 1.25rem 1rem;
}

.mockup-page h3 {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  font-weight: 700;
}

.mockup-page p {
  margin: 0 0 0.625rem;
  font-size: 0.625rem;
  line-height: 1.5;
  color: #52525b;
}

.mockup-page .mock-line {
  height: 4px;
  background: #e4e4e7;
  border-radius: 2px;
  margin-bottom: 6px;
}

.mockup-page .mock-line.short {
  width: 70%;
}

.mockup-page .mock-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-top: 0.75rem;
}

.mockup-page .mock-cell {
  height: 18px;
  background: #f4f4f5;
  border: 1px solid #e4e4e7;
  border-radius: 2px;
}

.mockup-status {
  display: flex;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.6875rem;
  color: var(--muted);
  background: var(--chrome-bg);
  border-top: 1px solid var(--chrome-border);
}

/* Sections */
section {
  padding-block: var(--space-3xl);
}

section:nth-of-type(even) {
  background: color-mix(in srgb, var(--surface) 40%, var(--bg));
}

.section-header {
  margin-bottom: var(--space-2xl);
  text-align: center;
}

.section-header h2 {
  margin: 0 0 var(--space-sm);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.section-header p {
  margin: 0 auto;
  max-width: 50ch;
  color: var(--muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.feature-card {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.feature-icon svg {
  width: 20px;
  height: 20px;
}

.feature-card h3 {
  margin: 0 0 var(--space-sm);
  font-size: 1.0625rem;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9375rem;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}

.card {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
}

.card h3 {
  margin: 0 0 var(--space-md);
  font-size: 1.125rem;
}

.card ol,
.card ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.card li {
  margin-bottom: var(--space-sm);
}

.card li:last-child {
  margin-bottom: 0;
}

.shortcut-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.shortcut-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
  gap: var(--space-md);
}

.shortcut-list li:last-child {
  border-bottom: none;
}

kbd {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  font-family: inherit;
  font-size: 0.8125rem;
  background: var(--control-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  white-space: nowrap;
}

.callout {
  margin-top: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  font-size: 0.875rem;
  color: var(--muted);
}

.callout strong {
  color: var(--text);
}

.dev-section {
  text-align: center;
}

.dev-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.dev-badges img {
  height: 22px;
}

.dev-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* Footer */
.site-footer {
  padding-block: var(--space-2xl);
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.875rem;
  color: var(--muted);
}

.site-footer p {
  margin: 0 0 var(--space-sm);
}

.site-footer a {
  color: var(--muted);
}

.site-footer a:hover {
  color: var(--accent);
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid,
  .two-col {
    grid-template-columns: 1fr;
  }

  .nav-toggle-btn {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--chrome-bg);
    border-bottom: 1px solid var(--chrome-border);
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
  }

  @supports (backdrop-filter: blur(1px)) {
    .site-nav {
      backdrop-filter: blur(var(--glass-blur));
      -webkit-backdrop-filter: blur(var(--glass-blur));
    }
  }

  .nav-toggle:checked ~ .site-nav {
    display: flex;
  }

  .nav-toggle:checked + .nav-toggle-btn span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle:checked + .nav-toggle-btn span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle:checked + .nav-toggle-btn span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav-download {
    margin-top: var(--space-xs);
  }

  .hero {
    padding-block: var(--space-2xl);
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}