/* ========================================
   Meow Language Website — go.dev inspired
   ======================================== */

:root {
  --color-primary: #6c5ce7;
  --color-primary-dark: #5a4bd1;
  --color-primary-light: #a29bfe;
  --color-accent: #fd9644;
  --color-accent-light: #fed330;

  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-bg-code: #282a36;
  --color-bg-hero: #1a1a2e;

  --color-text: #2d3436;
  --color-text-secondary: #636e72;
  --color-text-light: #b2bec3;
  --color-text-inverse: #ffffff;
  --color-text-code: #f8f8f2;

  --color-border: #dfe6e9;
  --color-border-light: #eee;

  --font-sans: system-ui, -apple-system, "Segoe UI", "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, "DejaVu Sans Mono", monospace;

  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);

  --container-width: 1200px;
  --sidebar-width: 220px;
  --toc-width: 200px;
}

/* ── Reset ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s;
}
a:hover {
  color: var(--color-primary-dark);
}

img {
  max-width: 100%;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-bg-alt);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

pre {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  overflow-x: auto;
}

pre code {
  background: none;
  padding: 0;
}

/* ── Container ── */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Button ── */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-text-inverse);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-inverse);
  border-color: rgba(255, 255, 255, 0.4);
}
.btn-secondary:hover {
  border-color: #fff;
  color: #fff;
  transform: translateY(-1px);
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.nav-container {
  display: flex;
  align-items: center;
  height: 3.5rem;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-text);
}
.nav-logo:hover {
  color: var(--color-primary);
}

.nav-logo-icon {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.25rem;
  flex: 1;
}
.nav-links a {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.15s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  background: rgba(108, 92, 231, 0.08);
}

.nav-github {
  color: var(--color-text-secondary);
  display: flex;
  flex-shrink: 0;
  padding: 0.25rem;
  border-radius: 4px;
  transition: color 0.15s, background-color 0.15s;
}
.nav-github:hover {
  color: var(--color-text);
  background: rgba(0, 0, 0, 0.05);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: all 0.2s;
}

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

.nav-share {
  color: var(--color-text-secondary);
  display: flex;
  flex-shrink: 0;
  padding: 0.25rem;
  border-radius: 4px;
  transition: color 0.15s, background-color 0.15s;
}
.nav-share:hover {
  color: var(--color-text);
  background: rgba(0, 0, 0, 0.05);
}

.nav-share-separator {
  display: block;
  flex-shrink: 0;
  width: 1px;
  height: 18px;
  background: var(--color-border);
}

/* ── Hero ── */
.hero {
  background: var(--color-bg-hero);
  color: var(--color-text-inverse);
  padding: 4rem 0 5rem;
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 3rem;
  align-items: center;
}

.hero-cat {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  line-height: 1.3;
  color: var(--color-primary-light);
  margin-bottom: 1rem;
  background: none;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #fff 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: 1.25rem;
  color: var(--color-primary-light);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.hero-description {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 2rem;
  max-width: 440px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

/* ── Code Window ── */
.code-window {
  background: var(--color-bg-code);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.code-dot {
  display: block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.code-dot.red { background: #ff5f56; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green { background: #27c93f; }

.code-filename {
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  margin-left: 0.5rem;
}

.code-body {
  padding: 1.25rem 1.5rem;
  color: var(--color-text-code);
  margin: 0;
  background: none;
}

.code-output {
  padding: 0.75rem 1.5rem;
  background: rgba(0, 0, 0, 0.3);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.output-prompt {
  color: var(--color-accent);
  font-weight: 600;
}

.output-result {
  color: #50fa7b;
}

/* Syntax highlighting classes */
.kw { color: #ff79c6; }
.fn { color: #50fa7b; }
.str { color: #f1fa8c; }
.num { color: #bd93f9; }
.type { color: #8be9fd; font-style: italic; }
.cm { color: #6272a4; }

/* ── Features ── */
.features {
  padding: 5rem 0;
  background: var(--color-bg);
}

.features h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
  color: var(--color-text);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all 0.2s;
}
.feature-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.feature-card code {
  background: var(--color-bg-alt);
  font-size: 0.8rem;
}

/* ── Examples ── */
.examples {
  padding: 5rem 0;
  background: var(--color-bg-alt);
}

.examples h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2rem;
}

.example-tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tab {
  padding: 0.5rem 1.25rem;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all 0.15s;
}
.tab:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
}
.tab.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.example-panels {
  max-width: 700px;
  margin: 0 auto;
}

.example-panel {
  display: none;
}
.example-panel.active {
  display: block;
}

/* ── Code Actions & Run Output ── */
.code-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1rem;
  background: rgba(40, 42, 54, 0.95);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  margin-top: -1px;
}

.example-panel .code-window {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.btn-run {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-run:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}
.btn-run:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-playground {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: color 0.15s;
  margin-left: auto;
}
.btn-playground:hover {
  color: #fff;
}

.code-run-output {
  background: rgba(0, 0, 0, 0.4);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  margin-top: 2px;
  overflow: hidden;
}

.code-run-output pre {
  padding: 0.75rem 1.25rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
  color: #50fa7b;
  background: none;
  white-space: pre-wrap;
  word-break: break-word;
}

.code-run-output.error pre {
  color: #e94560;
}

.code-run-output.loading pre {
  color: rgba(255, 255, 255, 0.5);
}

/* When code-actions present, adjust border-radius */
.code-actions + .code-run-output {
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.code-actions ~ .code-run-output:not([style*="display:none"]) + .code-actions {
  border-radius: 0;
}

/* ── Quickstart ── */
.quickstart {
  padding: 5rem 0;
}

.quickstart h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
}

.install-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto 2.5rem;
}

.install-step {
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.step-content h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.code-inline {
  background: var(--color-bg-code);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  overflow-x: auto;
}

.code-inline code {
  color: var(--color-text-code);
  font-size: 0.85rem;
  background: none;
  padding: 0;
}

.quickstart-cta {
  text-align: center;
}

/* ── Footer ── */
.site-footer {
  background: var(--color-bg-hero);
  color: rgba(255, 255, 255, 0.7);
  padding: 3rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer-about p {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-links h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
}
.footer-links li {
  margin-bottom: 0.5rem;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}
.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ── Documentation Layout ── */
.doc-layout {
  padding: 2rem 0;
  min-height: calc(100vh - 3.5rem - 200px);
}

.doc-container {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr var(--toc-width);
  gap: 2rem;
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: 5rem;
  align-self: start;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}

.sidebar-nav h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
}

.sidebar-nav ul {
  list-style: none;
}

.sidebar-nav li {
  margin-bottom: 0.25rem;
}

.sidebar-nav a {
  display: block;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  transition: all 0.15s;
}
.sidebar-nav a:hover {
  color: var(--color-primary);
  background: rgba(108, 92, 231, 0.06);
}
.sidebar-nav a.active {
  color: var(--color-primary);
  background: rgba(108, 92, 231, 0.1);
  font-weight: 500;
}

/* Doc Content */
.doc-content {
  min-width: 0;
  max-width: 800px;
}

.doc-content h1 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.doc-content h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border-light);
}

.doc-content h3 {
  font-size: 1.2rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.doc-content h4 {
  font-size: 1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.doc-content p {
  margin-bottom: 1rem;
}

.doc-content ul,
.doc-content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.doc-content li {
  margin-bottom: 0.35rem;
}

.doc-content pre {
  background: var(--color-bg-code);
  color: var(--color-text-code);
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  overflow-x: auto;
}

.doc-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}
.doc-content th,
.doc-content td {
  padding: 0.6rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.doc-content th {
  font-weight: 600;
  background: var(--color-bg-alt);
}

.doc-content blockquote {
  border-left: 3px solid var(--color-primary);
  padding: 0.5rem 1rem;
  margin-bottom: 1rem;
  background: rgba(108, 92, 231, 0.04);
  color: var(--color-text-secondary);
}

/* ToC */
.toc {
  position: sticky;
  top: 5rem;
  align-self: start;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}

.toc-inner h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
}

.toc-inner ul {
  list-style: none;
  padding: 0;
}

.toc-inner li {
  margin-bottom: 0.25rem;
}

.toc-inner a {
  display: block;
  padding: 0.2rem 0;
  color: var(--color-text-light);
  font-size: 0.8rem;
  line-height: 1.4;
}
.toc-inner a:hover {
  color: var(--color-primary);
}

.toc-inner ul ul {
  padding-left: 0.75rem;
}

/* Section List */
.section-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.section-card {
  display: block;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all 0.2s;
  color: var(--color-text);
}
.section-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
  color: var(--color-text);
}
.section-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
  color: var(--color-primary);
}
.section-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin: 0;
}

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

  .hero {
    padding: 3rem 0;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .install-steps {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .doc-container {
    grid-template-columns: 1fr;
  }

  .sidebar,
  .toc {
    position: static;
    max-height: none;
  }

  .sidebar {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
  }

  .toc {
    display: none;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 3.5rem;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .example-tabs {
    flex-wrap: wrap;
  }
}