/* ============================================================
   Theme — shared styles for all vanilla pages
   Source of truth: docs/vanilla/theme.css
   ============================================================ */

/* --- Colors --- */

:root {
  --bg: #1a1025;
  --fg: #dcdcdc;
  --surface: #2d1b4e;
  --surface-fg: #dcdcdc;
  --code: #0f0a1a;
  --code-fg: #e0e0e0;
  --border: #3d2b5a;
  --primary: #de38a8;
  --secondary: #b96dff;
  --accent: #01cdfe;
  --muted: #b4b4b4;
  --dim: #999;
  --success: #50c878;
  --warning: #ffbe32;
  --error: #ff5050;
  --gradient: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
  --gradient-reverse: linear-gradient(90deg, var(--accent), var(--secondary), var(--primary));
  --gradient-vertical: linear-gradient(180deg, var(--primary), var(--secondary), var(--accent));

  --primary-15: color-mix(in srgb, var(--primary) 15%, transparent);
  --primary-30: color-mix(in srgb, var(--primary) 30%, transparent);
  --secondary-15: color-mix(in srgb, var(--secondary) 15%, transparent);
  --secondary-30: color-mix(in srgb, var(--secondary) 30%, transparent);
  --accent-15: color-mix(in srgb, var(--accent) 15%, transparent);
  --accent-30: color-mix(in srgb, var(--accent) 30%, transparent);
  --error-15: color-mix(in srgb, var(--error) 15%, transparent);
  --error-30: color-mix(in srgb, var(--error) 30%, transparent);
  --success-15: color-mix(in srgb, var(--success) 15%, transparent);
  --success-30: color-mix(in srgb, var(--success) 30%, transparent);
  --warning-15: color-mix(in srgb, var(--warning) 15%, transparent);
  --warning-30: color-mix(in srgb, var(--warning) 30%, transparent);

  --sun-glow: #ffe033;
  --sun-glow-70: rgba(255, 224, 51, 0.7);
  --sun-glow-40: rgba(255, 224, 51, 0.4);
  --text-on-gradient: #ffffff;
}

.light h1 {
  text-shadow: 0 0 20px color-mix(in srgb, var(--primary) 25%, transparent), 0 0 40px color-mix(in srgb, var(--primary) 12%, transparent);
}

.light h2 {
  text-shadow: 0 0 20px color-mix(in srgb, var(--secondary) 25%, transparent), 0 0 40px color-mix(in srgb, var(--secondary) 12%, transparent);
}

.light {
  --bg: #fef5f7;
  --fg: #2a1525;
  --surface: #fce4ec;
  --surface-fg: #2a1525;
  --code: #fce4ec;
  --code-fg: #4c1161;
  --border: #e4b8c8;
  --primary: #de38a8;
  --secondary: #b96dff;
  --accent: #01cdfe;
  --muted: #8a6578;
  --dim: #a88a9a;
  --success: #50c878;
  --warning: #ffbe32;
  --error: #ff5050;

  --primary-15: color-mix(in srgb, var(--primary) 15%, transparent);
  --primary-30: color-mix(in srgb, var(--primary) 30%, transparent);
  --secondary-15: color-mix(in srgb, var(--secondary) 15%, transparent);
  --secondary-30: color-mix(in srgb, var(--secondary) 30%, transparent);
  --accent-15: color-mix(in srgb, var(--accent) 15%, transparent);
  --accent-30: color-mix(in srgb, var(--accent) 30%, transparent);
  --error-15: color-mix(in srgb, var(--error) 15%, transparent);
  --error-30: color-mix(in srgb, var(--error) 30%, transparent);
  --success-15: color-mix(in srgb, var(--success) 15%, transparent);
  --success-30: color-mix(in srgb, var(--success) 30%, transparent);
  --warning-15: color-mix(in srgb, var(--warning) 15%, transparent);
  --warning-30: color-mix(in srgb, var(--warning) 30%, transparent);

  --sun-glow: #ffe033;
  --sun-glow-70: rgba(255, 224, 51, 0.7);
  --sun-glow-40: rgba(255, 224, 51, 0.4);
  --text-on-gradient: #ffffff;
}

/* --- Reset & Body --- */

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Source Serif 4', 'Roboto Slab', serif;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  transition: background 0.2s, color 0.2s;
}

/* --- Headings --- */

h1 {
  font-size: 1.8rem;
  margin: 2rem 0 0.75rem;
  color: var(--primary);
  text-shadow: 0 0 20px color-mix(in srgb, var(--primary) 60%, transparent), 0 0 40px color-mix(in srgb, var(--primary) 35%, transparent), 0 0 60px color-mix(in srgb, var(--primary) 20%, transparent);
}

h2 {
  font-size: 1.3rem;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid;
  border-image: var(--gradient) 1;
  color: var(--secondary);
  text-shadow: 0 0 20px color-mix(in srgb, var(--secondary) 50%, transparent), 0 0 40px color-mix(in srgb, var(--secondary) 30%, transparent), 0 0 60px color-mix(in srgb, var(--secondary) 15%, transparent);
  position: relative;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
  filter: blur(6px);
  opacity: 0.7;
}

h3 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--accent);
}

h4 { font-size: 1rem; margin: 1.2rem 0 0.4rem; color: var(--fg); }
h5 { font-size: 0.9rem; margin: 1rem 0 0.3rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.05em; }
h6 { font-size: 0.85rem; margin: 1rem 0 0.3rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* --- Text --- */

p { margin: 0.5rem 0; }
.subtitle { color: var(--fg); margin-bottom: 1.5rem; font-size: 0.95rem; }
.muted { color: var(--muted); }
.dim { color: var(--dim); }

.text-pink { color: var(--primary); }
.text-cyan { color: var(--accent); }
.text-purple { color: var(--secondary); }
.text-success { color: var(--success); }
.text-warn { color: var(--warning); }
.text-error { color: var(--error); }

.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }

.font-mono { font-family: 'Source Code Pro', 'Roboto Mono', monospace; }
.font-bold { font-weight: 700; }
.uppercase { text-transform: uppercase; letter-spacing: 0.05em; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* --- Links --- */

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

/* --- Code --- */

code {
  font-family: 'Source Code Pro', 'Roboto Mono', monospace;
  background: var(--code);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.9em;
  color: var(--accent);
}

pre {
  background: var(--code);
  color: var(--code-fg);
  padding: 1rem;
  border-radius: 5px;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.5;
  margin: 0.5rem 0;
  border: 1px solid var(--surface);
}

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

.url {
  font-family: monospace;
  background: var(--surface);
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  color: var(--accent);
}

/* --- Blockquote --- */

blockquote {
  position: relative;
  border-left: 3px solid transparent;
  background: var(--surface);
  padding: 1rem;
  margin: 0.5rem 0;
  border-radius: 5px;
  color: var(--surface-fg);
  font-style: italic;
}

blockquote::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--gradient-vertical);
}

/* --- Lists --- */

ul, ol { margin: 0.5rem 0; padding-left: 1.5rem; }
li { margin: 0.25rem 0; }

/* --- Horizontal Rule --- */

hr { border: none; height: 1px; margin: 1.5rem 0; background: var(--gradient); filter: drop-shadow(0 0 6px color-mix(in srgb, var(--primary) 70%, transparent)) drop-shadow(0 0 16px color-mix(in srgb, var(--secondary) 40%, transparent)); }
hr.reverse { background: var(--gradient-reverse); filter: drop-shadow(0 0 6px color-mix(in srgb, var(--accent) 70%, transparent)) drop-shadow(0 0 16px color-mix(in srgb, var(--secondary) 40%, transparent)); }

/* --- Table --- */

table { width: 100%; border-collapse: collapse; margin: 0.5rem 0; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid color-mix(in srgb, var(--border) 40%, transparent); }
th { color: var(--muted); font-weight: 600; font-size: 0.8em; text-transform: uppercase; letter-spacing: 0.05em; }

/* --- Badges --- */

.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 0.75em; font-weight: 600; }
.badge-app { background: var(--primary-15); color: var(--primary); }
.badge-ai { background: var(--secondary-15); color: var(--secondary); }
.badge-infra { background: var(--accent-15); color: var(--accent); }
.badge-success { background: var(--success-15); color: var(--success); }
.badge-warn { background: var(--warning-15); color: var(--warning); }
.badge-error { background: var(--error-15); color: var(--error); }
.badge-gradient { border: 1px solid transparent; background: var(--gradient) padding-box, var(--gradient-reverse) border-box; color: var(--text-on-gradient); }

/* --- Tags --- */

.tag {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: var(--surface);
  border-radius: 3px;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0.1rem;
}

/* --- Status Indicators --- */

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.4rem;
}

.status-online { background: var(--success); }
.status-offline { background: var(--error); }
.status-warn { background: var(--warning); }

/* --- Instructions / Alert Boxes --- */

.instructions {
  background: var(--surface);
  padding: 1rem;
  border-radius: 5px;
  margin: 0.5rem 0;
  border-left: 3px solid var(--primary);
}

.instructions-info { border-left-color: var(--secondary); }
.instructions-success { border-left-color: var(--success); }
.instructions-warn { border-left-color: var(--warning); }
.instructions-error { border-left-color: var(--error); }

/* --- Swatch / Color --- */

.swatch {
  display: inline-block;
  width: 28px;
  height: 28px;
  border-radius: 4px;
  vertical-align: middle;
  margin-right: 6px;
  border: 1px solid var(--border);
}

.color-cell { display: flex; align-items: center; gap: 6px; }
.color-hex { font-family: 'Source Code Pro', monospace; font-size: 0.85rem; }

/* --- Font Specimen --- */

.font-specimen {
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  margin: 0.25rem 0;
  color: var(--fg);
}

/* --- Toolbar --- */

.toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.back-link {
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
}

.back-link:hover { text-decoration: underline; }

/* --- Buttons --- */

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-family: 'Source Serif 4', 'Roboto Slab', serif;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary { background: var(--primary-15); color: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-30); }
.btn-secondary { background: var(--secondary-15); color: var(--secondary); border-color: var(--secondary); }
.btn-secondary:hover { background: var(--secondary-30); }
.btn-tertiary { background: var(--accent-15); color: var(--accent); border-color: var(--accent); }
.btn-tertiary:hover { background: var(--accent-30); }
.btn-subtle { background: transparent; color: var(--muted); border-color: var(--border); }
.btn-subtle:hover { color: var(--fg); border-color: var(--muted); }
.btn-destructive { background: var(--error-15); color: var(--error); border-color: var(--error); }
.btn-destructive:hover { background: var(--error-30); }
.btn-outline { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-outline:hover { color: var(--primary); border-color: var(--primary); }
.btn-ghost { background: transparent; color: var(--fg); border: none; }
.btn-ghost:hover { background: var(--surface); }
.btn-link { background: transparent; color: var(--primary); border: none; }
.btn-link:hover { opacity: 0.85; }
.btn-gradient { border: 1px solid transparent; background: var(--gradient) padding-box, var(--gradient-reverse) border-box; color: var(--text-on-gradient); }
.btn-gradient:hover { background: linear-gradient(90deg, var(--primary-30), var(--secondary-30), var(--accent-30)) padding-box, var(--gradient-reverse) border-box; }
.btn-sm { padding: 0.25rem 0.6rem; font-size: 0.75rem; }
.btn-lg { padding: 0.75rem 1.5rem; font-size: 1rem; }
.btn-icon { display: inline-flex; align-items: center; justify-content: center; padding: 0.45rem; line-height: 0; }

/* --- Theme Toggle --- */

.theme-toggle {
  background: var(--accent-15);
  color: var(--accent);
  border-color: var(--accent);
}
.theme-toggle svg {
  color: var(--sun-glow);
  filter: drop-shadow(0 0 6px var(--sun-glow-70)) drop-shadow(0 0 14px var(--sun-glow-40));
}
.theme-toggle:hover {
  background: var(--accent-30);
}

.light .theme-toggle {
  background: var(--secondary-15);
  color: var(--secondary);
  border-color: var(--secondary);
}
.light .theme-toggle svg {
  color: var(--secondary);
  filter: drop-shadow(0 0 6px color-mix(in srgb, var(--secondary) 70%, transparent)) drop-shadow(0 0 14px color-mix(in srgb, var(--secondary) 40%, transparent));
}
.light .theme-toggle:hover {
  background: var(--secondary-30);
}

/* --- Grid --- */

.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }

/* --- Card --- */

.card {
  background: var(--surface);
  padding: 1rem;
  border-radius: 5px;
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.card:hover { border-color: var(--primary); }
.card a.card-link { text-decoration: none; }
.card a.card-link:hover { text-decoration: none; }
.card-header { font-weight: 600; margin-bottom: 0.5rem; color: var(--accent); font-size: 1.1rem; }
.card-body { font-size: 0.9rem; color: var(--surface-fg); }
.card-meta { font-size: 0.8rem; color: var(--muted); margin-top: 0.5rem; font-family: 'Source Code Pro', monospace; }

/* --- Flex --- */

.flex { display: flex; gap: 0.5rem; align-items: center; }
.flex-wrap { flex-wrap: wrap; }

/* --- Forms --- */

input[type="text"], input[type="password"], textarea, select {
  background: var(--code);
  border: 1px solid var(--surface);
  color: var(--fg);
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.85rem;
  width: 100%;
  max-width: 400px;
}

input[type="text"]:focus, input[type="password"]:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
}

textarea { min-height: 80px; resize: vertical; }
label { display: block; margin: 0.5rem 0 0.25rem; color: var(--muted); font-size: 0.85rem; }

/* --- Tooltip --- */

.tooltip { position: relative; border-bottom: none; cursor: help; }
.tooltip::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient);
}

.tooltip:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--code);
  color: var(--fg);
  padding: 0.4rem 0.6rem;
  border-radius: 3px;
  font-size: 0.75rem;
  white-space: nowrap;
  border: 1px solid var(--surface);
  z-index: 1;
}

/* --- Keyboard --- */

.kbd {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.1rem 0.4rem;
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--fg);
}

/* --- Progress --- */

.progress {
  background: var(--surface);
  border-radius: 4px;
  height: 8px;
  overflow: hidden;
  margin: 0.5rem 0;
}

.progress-bar {
  height: 100%;
  border-radius: 4px;
}

.progress-pink { background: var(--primary); }
.progress-cyan { background: var(--accent); }
.progress-purple { background: var(--secondary); }
.progress-success { background: var(--success); }
.progress-bar.gradient { background: var(--gradient); }
.progress-bar.gradient-reverse { background: var(--gradient-reverse); }

/* --- Avatar --- */

.avatar {
  display: inline-block;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--border);
  vertical-align: middle;
}

/* --- Glossary --- */

.glossary {
  margin: 0.5rem 0;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--surface);
}

.glossary-term { font-weight: bold; font-family: monospace; color: var(--primary); }
.glossary-desc { color: var(--fg); font-size: 0.9rem; }

/* --- Config Sections --- */

.config-section { margin: 1.5rem 0; }
.config-path { font-size: 0.85rem; color: var(--dim); font-family: monospace; margin-bottom: 0.3rem; }

/* --- Prism Syntax Highlighting --- */

code[class*="language-"],
pre[class*="language-"] {
  color: var(--code-fg);
  background: var(--code) !important;
  font-family: 'Source Code Pro', 'Roboto Mono', monospace;
  font-size: 0.85rem;
  text-align: left;
  white-space: pre;
  word-spacing: normal;
  word-break: normal;
  word-wrap: normal;
  line-height: 1.5;
  tab-size: 4;
  hyphens: none;
}

pre[class*="language-"] {
  border: 1px solid var(--surface);
  border-radius: 5px;
  padding: 1rem;
  margin: 0.5rem 0;
  overflow-x: auto;
}

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

.token.comment,
.token.cdata {
  color: var(--muted) !important;
}

.token.prolog,
.token.doctype,
.token.string,
.token.char,
.token.attr-value,
.token.number,
.token.boolean {
  color: var(--success) !important;
}

.token.keyword,
.token.module,
.token.control,
.token.function,
.token.function-name,
.token.function-variable {
  color: var(--primary) !important;
}

.token.operator,
.token.punctuation,
.token.url,
.token.deleted {
  color: var(--error) !important;
}

.token.property,
.token.variable,
.token.symbol {
  color: var(--secondary) !important;
}

.token.tag {
  color: var(--primary) !important;
}

.token.attr-name {
  color: var(--secondary) !important;
}

.token.constant,
.token.class-name,
.token.builtin {
  color: var(--accent) !important;
}

.token.selector,
.token.atrule {
  color: var(--primary) !important;
}

.token.namespace {
  color: var(--secondary) !important;
}

.token.entity {
  color: var(--warning) !important;
}

.token.regex {
  color: var(--warning) !important;
}

.token.important {
  color: var(--warning) !important;
}

.token.inserted {
  color: var(--success) !important;
}

.color-toggle {
  margin: 0.5rem 0;
}

tr[data-derived] td {
  padding-top: 6px;
  padding-bottom: 6px;
}

.derived-name {
  padding-left: 1.5rem;
  font-size: 0.9em;
  color: var(--muted);
}