/* ============================================
   Convergent Methods — Shared Stylesheet
   Palette: Mineral (Hybrid B)
   Static site: convergentmethods.com
   ============================================ */

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

/* --- Root Variables --- */
:root {
  --bg: #f8faff;
  --surface: #eef2fb;
  --border: #d8e0f0;
  --text-primary: #0a0a0a;
  --text-secondary: #6e6e6e;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --code-bg: #eef2fb;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

/* --- Base --- */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.5em;
  letter-spacing: -0.01em;
}

h1 { font-size: 2rem; letter-spacing: -0.02em; }
h2 { font-size: 1.4rem; margin-top: 2.5rem; }
h3 { font-size: 1.1rem; margin-top: 1.5rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

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

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

strong {
  color: var(--text-primary);
}

/* --- Layout --- */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-wide {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Nav --- */
nav {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 50;
}

nav .nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

nav .nav-brand {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}

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

nav .nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

nav .nav-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

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

/* --- Hero --- */
.hero {
  text-align: center;
  padding: 4rem 0 3rem;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.hero .tagline {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  font-style: italic;
}

.hero .explainer {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 1.5rem;
}

.hero .install-block {
  display: inline-block;
  background: var(--accent);
  border-radius: 8px;
  padding: 0.7rem 2rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: #ffffff;
  margin-bottom: 1.5rem;
  user-select: all;
  letter-spacing: 0.01em;
}

.hero .hero-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero .hero-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* --- Sections --- */
section {
  padding: 2rem 0;
}

section + section {
  border-top: 1px solid var(--border);
}

/* --- Code Blocks --- */
pre {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 1rem 0;
  font-size: 0.875rem;
  line-height: 1.5;
  box-shadow: 0 1px 3px rgba(79, 70, 229, 0.06);
}

pre code {
  font-family: var(--font-mono);
  color: var(--text-primary);
  background: none;
  padding: 0;
  border: none;
  font-size: inherit;
}

code {
  font-family: var(--font-mono);
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.875em;
  color: var(--accent);
  border: 1px solid var(--border);
}

/* --- Tables --- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(79, 70, 229, 0.05);
}

th, td {
  text-align: left;
  padding: 0.65rem 0.875rem;
}

th {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

td {
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

tr:last-child td {
  border-bottom: none;
}

td:first-child {
  color: var(--text-primary);
}

td code {
  color: var(--accent);
  border: none;
}

/* --- Cards --- */
.card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  margin: 1rem 0;
  box-shadow: 0 1px 4px rgba(79, 70, 229, 0.07);
}

.card h3 {
  margin-top: 0;
}

/* --- Palette label (used in hero) --- */
.palette-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: rgba(79, 70, 229, 0.08);
  border: 1px solid rgba(79, 70, 229, 0.2);
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}

/* --- Tabs --- */
.tabs {
  margin: 1rem 0;
}

.tab-buttons {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* --- Parser Grid --- */
.parser-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.parser-tag {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  box-shadow: 0 1px 2px rgba(79, 70, 229, 0.04);
}

/* --- Install block (inline, non-hero) --- */
.install-block-inline {
  display: inline-block;
  background: var(--accent);
  border-radius: 8px;
  padding: 0.7rem 2rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: #ffffff;
  user-select: all;
  letter-spacing: 0.01em;
}

/* --- Footer --- */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 3rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.5);
}

footer p {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

footer a {
  color: var(--text-secondary);
}

footer a:hover {
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

/* --- Utilities --- */
.mono { font-family: var(--font-mono); }
.muted { color: var(--text-secondary); }
.accent { color: var(--accent); }
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 1rem; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 1.75rem;
  }

  .hero .tagline {
    font-size: 1rem;
  }

  .hero .install-block {
    font-size: 0.9rem;
    padding: 0.6rem 1.25rem;
  }

  nav .nav-inner {
    flex-direction: column;
    gap: 0.75rem;
  }

  nav .nav-links {
    gap: 1rem;
  }

  table {
    font-size: 0.8rem;
  }

  th, td {
    padding: 0.4rem 0.5rem;
  }

  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.2rem; }
}

/* --- Prism.js Overrides --- */
pre[class*="language-"] {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  box-shadow: 0 1px 3px rgba(79, 70, 229, 0.06);
}

code[class*="language-"] {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}