/* ============================================================
   HOULAHOP — shared styles, v1
   A problem-oriented capability catalog for AI agents.
   Register: minimal, calm, terminal-flavoured. Dark palette,
   monospace type, one accent per tool — no gimmicks.
   Every houlahop page links this file; capability pages may
   override --hh-accent with their own colour.
   ============================================================ */

:root {
  --hh-bg: #0d1117;
  --hh-ink: #e6edf3;
  --hh-muted: #9198a1;
  --hh-faint: #6e7681;
  --hh-border: #21262d;
  --hh-border-strong: #30363d;
  --hh-surface: #161b22;
  --hh-accent: #3fb950;            /* terminal green — pages override this */
  --hh-font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
  --hh-max-width: 1024px;
  --hh-measure: 44rem;
  --hh-radius: 8px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--hh-font-mono);
  font-size: 0.92rem;
  background: var(--hh-bg);
  color: var(--hh-ink);
  line-height: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

/* ---- Header ---- */
.hh-header {
  border-bottom: 1px solid var(--hh-border);
}

.hh-header__inner {
  max-width: var(--hh-max-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.hh-wordmark {
  font-weight: 600;
  font-size: 0.9rem;
}

.hh-wordmark::before {
  content: '~/';
  color: var(--hh-accent);
}

.hh-wordmark::after {
  content: '▍';
  color: var(--hh-accent);
  animation: hh-blink 1.2s steps(1) infinite;
}

@keyframes hh-blink { 50% { opacity: 0; } }

/* ---- Breadcrumb wordmark for tool sites: ~/houlahop/<tool>▍ ---- */
.hh-crumbs {
  font-weight: 600;
  font-size: 0.9rem;
}

.hh-crumbs a {
  color: var(--hh-ink);
}

.hh-crumbs a:hover {
  color: var(--hh-accent);
}

.hh-crumbs a:first-child::before {
  content: '~/';
  color: var(--hh-accent);
}

.hh-crumbs .hh-sep {
  color: var(--hh-muted);
}

.hh-crumbs::after {
  content: '▍';
  color: var(--hh-accent);
  animation: hh-blink 1.2s steps(1) infinite;
}

@media (prefers-reduced-motion: reduce) {
  .hh-crumbs::after { animation: none; }
}

.hh-nav {
  display: flex;
  gap: 24px;
  font-size: 0.8rem;
}

.hh-nav a {
  color: var(--hh-muted);
  transition: color 0.15s;
}

.hh-nav a:hover {
  color: var(--hh-ink);
}

/* ---- Hero (mission statement, if used) ---- */
.hh-hero {
  max-width: var(--hh-max-width);
  margin: 0 auto;
  padding: 80px 24px 56px;
  text-align: center;
}

.hh-hero h1 {
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  max-width: 26ch;
  margin: 0 auto;
}

.hh-hero__sub {
  margin: 20px auto 0;
  max-width: 58ch;
  color: var(--hh-muted);
}

/* ---- Homepage project entries ---- */
.hh-entry {
  padding: 44px 0 4px;
}

.hh-entry h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.hh-entry h2 a {
  color: inherit;
}

.hh-entry h2 a::before {
  content: '$ ';
  color: var(--hh-accent);
}

.hh-entry h2 a:hover {
  color: var(--hh-accent);
}

.hh-entry__lead {
  font-weight: 600;
  margin-bottom: 12px;
}

.hh-entry p {
  margin-bottom: 12px;
  max-width: var(--hh-measure);
}

.hh-entry p:not(.hh-entry__lead) {
  color: var(--hh-muted);
}

hr {
  border: none;
  border-top: 1px solid var(--hh-border);
  margin: 36px 0 0;
}

/* ---- Capability cards (if used) ---- */
.hh-cards {
  max-width: var(--hh-max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 24px 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.hh-card {
  border: 1px solid var(--hh-border);
  border-radius: var(--hh-radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s;
}

.hh-card:hover {
  border-color: var(--hh-border-strong);
}

.hh-card h2 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

.hh-card__project {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--hh-accent);
}

.hh-card__desc {
  font-size: 0.85rem;
  color: var(--hh-muted);
  flex: 1;
}

.hh-card__more {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--hh-accent);
}

.hh-card__more:hover {
  text-decoration: underline;
}

/* ---- Capability page ---- */
.hh-page {
  width: 100%;
  max-width: calc(var(--hh-measure) + 48px);
  margin: 0 auto;
  padding: 0 24px;
  flex: 1;
}

.hh-page-hero {
  padding: 64px 0 12px;
}

.hh-page-hero .hh-card__project {
  display: block;
  margin-bottom: 12px;
}

.hh-page-hero h1 {
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.4;
}

.hh-page-hero__summary {
  margin-top: 14px;
  color: var(--hh-muted);
  max-width: 52ch;
}

.hh-section {
  padding: 36px 0 4px;
}

.hh-section__label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--hh-faint);
  letter-spacing: 0.08em;
}

.hh-section h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 4px 0 14px;
}

.hh-section h2::before {
  content: '# ';
  color: var(--hh-accent);
}

.hh-section p {
  margin-bottom: 14px;
  max-width: var(--hh-measure);
}

.hh-section p a,
.hh-section li a {
  color: var(--hh-accent);
}

.hh-section p a:hover,
.hh-section li a:hover {
  text-decoration: underline;
}

.hh-section ul {
  list-style: none;
  margin-bottom: 14px;
}

.hh-section li {
  padding-left: 22px;
  position: relative;
  margin-bottom: 8px;
}

.hh-section li::before {
  content: '-';
  position: absolute;
  left: 0;
  color: var(--hh-accent);
}

/* ---- Code ---- */
code {
  font-family: var(--hh-font-mono);
  font-size: 0.88em;
  background: var(--hh-surface);
  border: 1px solid var(--hh-border);
  border-radius: 4px;
  padding: 1px 5px;
  word-break: break-word;
}

pre {
  font-family: var(--hh-font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  background: var(--hh-surface);
  border: 1px solid var(--hh-border);
  border-radius: var(--hh-radius);
  padding: 16px 20px;
  overflow-x: auto;
  margin: 16px 0 20px;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
}

pre .prompt { color: var(--hh-accent); user-select: none; }
pre .comment { color: var(--hh-faint); }

/* ---- Footer ---- */
.hh-footer {
  margin-top: 72px;
  border-top: 1px solid var(--hh-border);
}

.hh-footer__inner {
  max-width: var(--hh-max-width);
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--hh-faint);
}

.hh-footer a {
  color: var(--hh-muted);
}

.hh-footer a:hover {
  color: var(--hh-accent);
}

/* ---- Responsive / motion ---- */
@media (max-width: 640px) {
  .hh-hero { padding: 56px 24px 40px; }
  .hh-page-hero { padding: 44px 0 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .hh-wordmark::after { animation: none; }
}