:root {
  color-scheme: light dark;

  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --surface: #ffffff;
  --border: #dde3ea;
  --text: #1f2933;
  --text-muted: #52606d;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-contrast: #ffffff;
  --header-bg: rgba(255, 255, 255, 0.85);

  --hero-bg: linear-gradient(135deg, #1e2a3a 0%, #2c3e50 55%, #34495e 100%);
  --hero-text: #f5f7fa;
  --hero-muted: #c3ccd6;

  --code-bg: #0f1720;
  --code-border: #2a3644;
  --code-text: #e2e8f0;
  --code-keyword: #c792ea;
  --code-type: #82cfff;
  --code-string: #c3e88d;
  --code-number: #f78c6c;
  --code-comment: #7f8c98;

  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 4px 12px rgba(16, 24, 40, 0.06);
  --max-width: 1120px;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141a;
    --bg-alt: #151c24;
    --surface: #1a222c;
    --border: #2a3644;
    --text: #e4e9ef;
    --text-muted: #9aa8b6;
    --accent: #6ea8fe;
    --accent-hover: #9ec5fe;
    --accent-contrast: #0f141a;
    --header-bg: rgba(15, 20, 26, 0.85);
    --hero-bg: linear-gradient(135deg, #0b1118 0%, #16212d 55%, #1d2b3a 100%);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.25);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

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

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

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

h1,
h2,
h3 {
  line-height: 1.25;
  margin: 0 0 0.5em;
}

p {
  margin: 0 0 1em;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-contrast);
}

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

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  backdrop-filter: saturate(180%) blur(10px);
}

.site-header .container {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 3.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-size: 1.2rem;
  font-weight: 700;
  white-space: nowrap;
}

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

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

.site-nav {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.site-nav a {
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

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

@media (max-width: 640px) {
  .site-header .container {
    flex-wrap: wrap;
    gap: 0.25rem 1rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 0.25rem 1rem;
    width: 100%;
    margin-left: 0;
  }
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

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

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

.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--accent-contrast);
}

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

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

.hero .btn-outline {
  border-color: rgba(255, 255, 255, 0.3);
  background: transparent;
  color: var(--hero-text);
}

.hero .btn-outline:hover {
  border-color: var(--hero-text);
  color: var(--hero-text);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Hero */

.hero {
  background: var(--hero-bg);
  color: var(--hero-text);
  padding: 4.5rem 0;
}

.hero .container {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr);
  gap: 2.5rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
}

.hero .tagline {
  color: var(--hero-muted);
  font-size: 1.15rem;
  margin-bottom: 1.75rem;
}

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

@media (max-width: 900px) {
  .hero {
    padding: 3rem 0;
  }

  .hero .container {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Code blocks */

.code-window {
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  background: var(--code-bg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.code-window-title {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--code-border);
  color: var(--code-comment);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.code-window-title::before {
  content: "";
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: #ff5f57;
  box-shadow: 1rem 0 0 #febc2e, 2rem 0 0 #28c840;
  margin-right: 2.6rem;
}

pre {
  margin: 0;
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  color: var(--code-text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  tab-size: 4;
}

pre .k { color: var(--code-keyword); }
pre .t { color: var(--code-type); }
pre .s { color: var(--code-string); }
pre .n { color: var(--code-number); }
pre .c { color: var(--code-comment); }

/* Sections */

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  max-width: 44rem;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.01em;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(16rem, 100%), 1fr));
  gap: 1.25rem;
}

.group-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 3rem 0 1.25rem;
  font-size: 1.3rem;
}

.section-header + .group-title {
  margin-top: 0;
}

.group-title .fa {
  color: var(--accent);
}

.card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card h3 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.15rem;
}

.card h3 .icons {
  display: inline-flex;
  gap: 0.35rem;
}

.card .fa {
  color: var(--accent);
}

.card p {
  color: var(--text-muted);
}

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

.card .more {
  margin-top: auto;
  font-weight: 600;
}

/* Install */

.install-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(20rem, 100%), 1fr));
  gap: 1.25rem;
}

.command {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  background: var(--code-bg);
}

.command pre {
  flex: 1;
  padding: 0.8rem 1rem;
}

.command pre::before {
  content: "> ";
  color: var(--code-comment);
}

.copy-button {
  display: none;
  margin-right: 0.5rem;
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--code-border);
  border-radius: 6px;
  background: transparent;
  color: var(--code-comment);
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
}

.js .copy-button {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.copy-button:hover {
  border-color: var(--code-text);
  color: var(--code-text);
}

.copy-button.copied {
  border-color: var(--code-string);
  color: var(--code-string);
}

.note {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Support */

.support {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.25rem;
}

@media (max-width: 800px) {
  .support {
    grid-template-columns: minmax(0, 1fr);
  }
}

.btn-sponsor {
  background: #bf3989;
  color: #ffffff;
}

.btn-sponsor:hover {
  background: #99286e;
  color: #ffffff;
}

/* Footer */

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

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}