:root,
:root[data-theme='dark'] {
  color-scheme: dark;
  --bg: #0a0f1e;
  --surface: #0d1224;
  --surface-2: #12182c;
  --text: #f0f2ff;
  --muted: #6b7280;
  --accent: #7c3aed;
  --accent-2: #00d4ff;
  --accent-soft: #9d5fff;
  --border: rgba(124, 58, 237, 0.2);
  --header-bg: rgba(11, 15, 20, 0.9);
  --on-accent: #f0f2ff;
  --code-bg: #12182c;
  --code-text: #e8eaf6;
  --selection-bg: rgba(124, 58, 237, 0.35);
  --selection-text: #f0f2ff;
  --success: #34d399;
  --success-bg: rgba(52, 211, 153, 0.12);
  --success-border: rgba(52, 211, 153, 0.35);
  --error: #f87171;
  --error-bg: rgba(248, 113, 113, 0.12);
  --error-border: rgba(248, 113, 113, 0.35);
  --max: 1080px;
  --radius: 12px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-brand: "Space Grotesk", var(--font);
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

:root[data-theme='light'] {
  color-scheme: light;
  --bg: #f5f6fb;
  --surface: #ffffff;
  --surface-2: #eef0f8;
  --text: #0a0f1e;
  --muted: #5b6472;
  --accent: #7c3aed;
  --accent-2: #0284c7;
  --accent-soft: #6d28d9;
  --border: rgba(109, 40, 217, 0.16);
  --header-bg: rgba(245, 246, 251, 0.92);
  --on-accent: #f0f2ff;
  --code-bg: #eef0f8;
  --code-text: #1e1b4b;
  --selection-bg: rgba(109, 40, 217, 0.2);
  --selection-text: #0a0f1e;
  --success: #059669;
  --success-bg: rgba(5, 150, 105, 0.1);
  --success-border: rgba(5, 150, 105, 0.3);
  --error: #dc2626;
  --error-bg: rgba(220, 38, 38, 0.08);
  --error-border: rgba(220, 38, 38, 0.28);
}

* {
  box-sizing: border-box;
}

::selection {
  background: var(--selection-bg);
  color: var(--selection-text);
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  color-scheme: inherit;
}

h1,
h2,
h3,
h4 {
  color: var(--text);
}

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

a:hover {
  text-decoration: underline;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  color: var(--accent-soft);
  background: var(--code-bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

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

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--header-bg);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
  color-scheme: inherit;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-brand);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: -0.02em;
  text-decoration: none;
}

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

.brand-logo,
.hero-mark {
  display: block;
  flex-shrink: 0;
}

.brand-logo {
  width: 28px;
  height: 28px;
}

.brand-logo-light,
.hero-mark-light {
  display: none;
}

:root[data-theme='light'] .brand-logo-dark,
:root[data-theme='light'] .hero-mark-dark {
  display: none;
}

:root[data-theme='light'] .brand-logo-light,
:root[data-theme='light'] .hero-mark-light {
  display: block;
}

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

.hero-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.hero-mark {
  width: 72px;
  height: 72px;
}

.hero-wordmark {
  margin: 0;
  font-family: var(--font-brand);
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}

.hero-wordmark .mesh {
  color: var(--text);
}

.hero-wordmark .ql {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.nav-links a {
  color: var(--muted);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  text-decoration: none;
}

.theme-select {
  position: relative;
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  color-scheme: inherit;
}

.theme-select-icon {
  position: absolute;
  left: 0.7rem;
  width: 1rem;
  height: 1rem;
  pointer-events: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-select select {
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  padding: 0.45rem 1.75rem 0.45rem 2.1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  color-scheme: inherit;
}

.theme-select select:hover,
.theme-select select:focus {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  outline: none;
}

.theme-select::after {
  content: "";
  position: absolute;
  right: 0.75rem;
  width: 0.4rem;
  height: 0.4rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  pointer-events: none;
  opacity: 0.7;
}

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

.btn {
  display: inline-block;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  text-decoration: none;
  color-scheme: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: var(--on-accent);
}

.btn-primary:hover {
  color: var(--on-accent);
  text-decoration: none;
  filter: brightness(1.06);
}

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

.btn-secondary:hover {
  color: var(--text);
  text-decoration: none;
  background: var(--surface-2);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

.hero {
  padding: 4.5rem 0 3rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  color: var(--text);
}

.hero p.lead {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 52ch;
  margin: 0 0 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.code-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--code-text);
  color-scheme: inherit;
}

.code-block code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.section-lead {
  margin: -0.5rem 0 1.5rem;
}

.pkg-npm {
  margin: 0 0 0.5rem !important;
  font-size: 0.85rem !important;
}

.pkg-npm code {
  color: var(--accent-soft);
  background: var(--surface-2);
}

.packages-grid {
  margin-top: 0;
}

.section-header {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 2rem 0 3rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  color: var(--text);
  color-scheme: inherit;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--text);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.card code {
  color: var(--accent-soft);
  background: var(--surface-2);
}

.section {
  padding: 2.5rem 0;
}

.section h2 {
  margin: 0 0 1rem;
  font-size: 1.6rem;
  color: var(--text);
}

.comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

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

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding: 2rem 0;
  color: var(--muted);
  font-size: 0.9rem;
  background: var(--bg);
}

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

.form-card {
  max-width: 640px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  color: var(--text);
  color-scheme: inherit;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  color-scheme: inherit;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--muted);
  opacity: 0.85;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 1px;
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
}

.flash {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.flash-success {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success);
}

.flash-error {
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--error);
}

@media (max-width: 640px) {
  .nav-links {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}