/* ================================================================
   Two Birds Command Centre — Main Stylesheet
   Dark mode default. Clean, functional, no fluff.
   ================================================================ */

/* Skip-to-content link — first focusable element (WCAG 2.4.1). */
.skip-link {
  position: absolute;
  top: -48px;
  left: 8px;
  background: #58a6ff;
  color: #0d1117;
  padding: 12px 16px;
  border-radius: 0 0 6px 6px;
  font-weight: 700;
  z-index: 9999;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 0;
  outline: 3px solid #e6edf3;
  outline-offset: 2px;
}

:root {
  --bg-0:       #0d1117;
  --bg-1:       #161b22;
  --bg-2:       #21262d;
  --bg-3:       #30363d;
  --border:     #30363d;
  --border-hi:  #484f58;
  --text-0:     #e6edf3;
  --text-1:     #8b949e;
  --text-2:     #6e7681;
  --accent:     #58a6ff;
  --accent-dim: #1f6feb;

  /* Status colours */
  --s-active:      #3fb950;
  --s-active-bg:   #0d3320;
  --s-progress:    #58a6ff;
  --s-progress-bg: #0c2d6b;
  --s-queued:      #d29922;
  --s-queued-bg:   #3d2e00;
  --s-complete:    #6e7681;
  --s-complete-bg: #21262d;
  --s-deferred:    #484f58;
  --s-deferred-bg: #161b22;
  --s-planned:     #a371f7;
  --s-planned-bg:  #271d48;
  --s-parked:      #484f58;
  --s-parked-bg:   #161b22;
  --s-pending:     #d29922;
  --s-pending-bg:  #3d2e00;
  --s-blocked:     #f85149;
  --s-blocked-bg:  #3d0f0d;

  --radius:     6px;
  --radius-lg:  10px;
  --font:       -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono:  'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}

/* Light mode override (unused by default — this is a personal tool) */
[data-theme="light"] {
  --bg-0:    #f6f8fa;
  --bg-1:    #ffffff;
  --bg-2:    #f0f2f5;
  --bg-3:    #e8ebf0;
  --border:  #d0d7de;
  --text-0:  #1f2328;
  --text-1:  #656d76;
  --text-2:  #848d97;
  --accent:  #0969da;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg-0);
  color: var(--text-0);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: inherit; cursor: pointer; }

/* ── Layout ── */
.page-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

/* ── Header ── */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  position: sticky;
  top: 0;
  background: var(--bg-0);
  z-index: 100;
}
.site-logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-0);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.site-logo .logo-mark {
  color: var(--accent);
  font-weight: 900;
  font-size: 1.3rem;
}
.site-nav {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}
.nav-link {
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: var(--text-1);
  transition: background 0.1s, color 0.1s;
}
.nav-link:hover, .nav-link.active {
  background: var(--bg-2);
  color: var(--text-0);
  text-decoration: none;
}

/* ── Page title ── */
.page-title {
  padding: 2rem 0 1.25rem;
}
.page-title h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-0);
}
.page-title p {
  color: var(--text-1);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

/* ── Stats bar ── */
.stats-bar {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.stat-pill {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.35rem 0.9rem;
  font-size: 0.82rem;
  color: var(--text-1);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.stat-pill strong {
  color: var(--text-0);
  font-size: 0.95rem;
}

/* ── Search ── */
.search-wrap {
  margin-bottom: 1.25rem;
  position: relative;
}
.search-wrap input {
  width: 100%;
  max-width: 600px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-0);
  font-size: 0.95rem;
  padding: 0.65rem 1rem 0.65rem 2.4rem;
  outline: none;
  transition: border-color 0.15s;
}
.search-wrap input:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px rgba(31,111,235,0.3);
}
.search-wrap input::placeholder { color: var(--text-2); }
.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-2);
  font-size: 0.9rem;
  pointer-events: none;
}

/* ── Filter bar ── */
.filter-bar {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.filter-btn {
  padding: 0.3rem 0.85rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-1);
  font-size: 0.82rem;
  transition: all 0.1s;
}
.filter-btn:hover { border-color: var(--border-hi); color: var(--text-0); }
.filter-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  color: #fff;
}

/* ── Status badge ── */
.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 12px;
  font-size: 0.73rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.badge-active      { color: var(--s-active);   background: var(--s-active-bg); }
.badge-in-progress { color: var(--s-progress);  background: var(--s-progress-bg); }
.badge-queued      { color: var(--s-queued);    background: var(--s-queued-bg); }
.badge-complete    { color: var(--s-complete);  background: var(--s-complete-bg); }
.badge-deferred    { color: var(--s-deferred);  background: var(--s-deferred-bg); }
.badge-planned     { color: var(--s-planned);   background: var(--s-planned-bg); }
.badge-parked      { color: var(--s-parked);    background: var(--s-parked-bg); }
.badge-pending     { color: var(--s-pending);   background: var(--s-pending-bg); }
.badge-blocked     { color: var(--s-blocked);   background: var(--s-blocked-bg); }
.badge-to-install  { color: var(--s-queued);    background: var(--s-queued-bg); }
.badge-active-interim { color: var(--s-active); background: var(--s-active-bg); }

/* Trust decay badges */
.trust-green     { color: #3fb950; background: #0d3320; }
.trust-yellow    { color: #d29922; background: #3d2e00; }
.trust-red       { color: #f85149; background: #3d0f0d; }
.trust-permanent { color: #58a6ff; background: #0c2d6b; }

/* ── Project card ── */
.project-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
}
.project-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.25rem;
  transition: border-color 0.15s;
}
.project-card:hover { border-color: var(--border-hi); }
.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.project-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-0);
  line-height: 1.3;
}
.project-desc {
  font-size: 0.85rem;
  color: var(--text-1);
  margin-bottom: 0.75rem;
  line-height: 1.45;
}
.project-links {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}
.project-link {
  font-size: 0.78rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-1);
  background: var(--bg-2);
}
.project-link:hover { color: var(--accent); border-color: var(--accent-dim); text-decoration: none; }

/* Epic progress bar */
.epic-progress {
  margin-bottom: 0.6rem;
}
.epic-progress-bar {
  height: 4px;
  background: var(--bg-3);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 0.3rem;
}
.epic-progress-fill {
  height: 100%;
  background: var(--s-active);
  border-radius: 2px;
  transition: width 0.3s;
}
.epic-meta {
  font-size: 0.78rem;
  color: var(--text-2);
}

/* Expand/collapse epics */
.epics-toggle {
  width: 100%;
  background: none;
  border: none;
  border-top: 1px solid var(--border);
  padding: 0.55rem 0 0;
  margin-top: 0.6rem;
  color: var(--text-1);
  font-size: 0.8rem;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.1s;
}
.epics-toggle:hover { color: var(--text-0); }
.epics-toggle .chevron { transition: transform 0.2s; display: inline-block; }
.epics-toggle.open .chevron { transform: rotate(90deg); }

.epics-list {
  display: none;
  margin-top: 0.5rem;
  border-top: 1px solid var(--border);
  padding-top: 0.5rem;
}
.epics-list.open { display: block; }
.epic-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--border);
  gap: 0.5rem;
}
.epic-row:last-child { border-bottom: none; }
.epic-name {
  font-size: 0.82rem;
  color: var(--text-1);
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Infrastructure section ── */
.infra-section {
  margin-top: 2rem;
}
.infra-section h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-1);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}
.infra-grid {
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.infra-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.65rem 0.9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.infra-name { font-size: 0.88rem; font-weight: 600; }
.infra-note { font-size: 0.78rem; color: var(--text-2); margin-top: 0.15rem; }

/* ── Vault / Inbox / Decisions ── */
.file-list {
  display: grid;
  gap: 0.75rem;
}
.file-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.2rem;
  cursor: pointer;
  transition: border-color 0.15s;
}
.file-card:hover { border-color: var(--border-hi); }
.file-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.file-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-0);
}
.file-meta {
  font-size: 0.78rem;
  color: var(--text-2);
  margin-top: 0.3rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}
.file-tags {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
  margin-top: 0.4rem;
}
.tag {
  font-size: 0.72rem;
  padding: 0.1rem 0.45rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--text-2);
}

/* Markdown viewer pane */
.md-viewer {
  display: none;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-top: 1rem;
}
.md-viewer.open { display: block; }
.md-viewer-close {
  float: right;
  background: var(--bg-3);
  border: none;
  color: var(--text-1);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius);
  font-size: 0.82rem;
  cursor: pointer;
}
.md-viewer-close:hover { background: var(--bg-3); color: var(--text-0); }
.md-content h1, .md-content h2, .md-content h3 {
  color: var(--text-0);
  margin: 1.2rem 0 0.5rem;
  line-height: 1.3;
}
.md-content h1 { font-size: 1.4rem; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }
.md-content h2 { font-size: 1.15rem; }
.md-content h3 { font-size: 1rem; color: var(--text-1); }
.md-content p { margin: 0.5rem 0; color: var(--text-1); font-size: 0.9rem; }
.md-content ul, .md-content ol { margin: 0.5rem 0 0.5rem 1.3rem; color: var(--text-1); font-size: 0.9rem; }
.md-content li { margin-bottom: 0.25rem; }
.md-content code {
  background: var(--bg-3);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.md-content pre {
  background: var(--bg-3);
  padding: 1rem;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 0.75rem 0;
}
.md-content pre code { background: none; padding: 0; }
.md-content strong { color: var(--text-0); }
.md-content blockquote {
  border-top: 2px solid var(--border-hi);
  background: var(--bg-1);
  border-radius: 4px;
  margin: 0.75rem 0;
  padding: 0.4rem 0.75rem;
  color: var(--text-1);
}
.md-content hr { border: none; border-top: 1px solid var(--border); margin: 1rem 0; }

/* ── Decision form ── */
.decision-form {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}
.decision-form h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}
.form-row {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 0.75rem;
}
.form-row.full { grid-template-columns: 1fr; }
label.form-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-1);
  margin-bottom: 0.3rem;
}
input.form-input, select.form-select, textarea.form-textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-0);
  font-family: inherit;
  font-size: 0.88rem;
  padding: 0.55rem 0.75rem;
  outline: none;
  transition: border-color 0.15s;
}
input.form-input:focus,
select.form-select:focus,
textarea.form-textarea:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px rgba(31,111,235,0.25);
}
input.form-input::placeholder,
textarea.form-textarea::placeholder { color: var(--text-2); }
textarea.form-textarea { resize: vertical; min-height: 72px; }
select.form-select { appearance: none; }
option { background: var(--bg-2); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: opacity 0.1s;
}
.btn:hover { opacity: 0.85; }
.btn-primary { background: var(--accent-dim); color: #fff; }
.btn-secondary {
  background: var(--bg-3);
  color: var(--text-0);
  border: 1px solid var(--border);
}
.btn-danger { background: var(--s-blocked-bg); color: var(--s-blocked); border: 1px solid var(--s-blocked); }

/* ── Category tabs ── */
.category-tabs {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
}
.cat-tab {
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-1);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.1s;
}
.cat-tab:hover { background: var(--bg-2); color: var(--text-0); }
.cat-tab.active {
  background: var(--bg-2);
  border-color: var(--border);
  color: var(--text-0);
}

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-2);
  font-size: 0.9rem;
}
.empty-state .empty-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }

/* ── Scrollbar (webkit) ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hi); }

/* ── Focus-visible (dark-theme keyboard a11y) ── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Suppress default :focus when :focus-visible isn't matched (mouse users) */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible),
[tabindex]:focus:not(:focus-visible) {
  outline: none;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .project-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .stats-bar { gap: 0.6rem; }
  .infra-grid { grid-template-columns: 1fr; }
  .site-header { padding: 0.75rem 1rem; }
  .page-wrap { padding: 0 0.9rem 3rem; }
}