/* ── Custom properties ─────────────────────────────────────────── */
:root {
  --bg:             #f8f9fa;
  --surface:        #ffffff;
  --ink:            #1a1f24;
  --ink-head:       #0b1015;
  --ink-soft:       #4a5568;
  --ink-muted:      #718096;
  --line:           #e2e8f0;
  --line-input:     #cbd5e1;
  --accent:         #0052cc;
  --hover-bg:       #ffffff;
  --hover-sh:       0 1px 3px rgba(0,0,0,.08);
  --status-glow:    #dcfce7;
  --tool-icon-clr:  #1a1f24;
  --tool-icon-op:   0.4;
  --ext-icon-clr:   #718096;
  --ext-icon-op:    0.5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:             #0f1117;
    --surface:        #1a2030;
    --ink:            #e2e8f0;
    --ink-head:       #e2e8f0;
    --ink-soft:       #a0aec0;
    --ink-muted:      #64748b;
    --line:           #2d3748;
    --line-input:     #2d3748;
    --accent:         #4d94ff;
    --hover-bg:       #1a2030;
    --hover-sh:       0 1px 3px rgba(0,0,0,.3);
    --status-glow:    rgba(34,197,94,.25);
    --tool-icon-clr:  #a0aec0;
    --tool-icon-op:   0.75;
    --ext-icon-clr:   #a0aec0;
    --ext-icon-op:    0.75;
  }
}

/* ── Base ── */
* { -webkit-font-smoothing: antialiased; }
::selection { background: #0052cc; color: #fff; }

body {
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  font-family: 'Inter', system-ui, sans-serif;
}

/* ── Page wrapper ── */
.page-wrap { max-width: 80rem; margin: 0 auto; padding: 3rem 1.5rem; }

/* ── Header ── */
.site-header {
  margin-bottom: 5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2rem;
  gap: 1.5rem;
}
.header-lead    { max-width: 36rem; }
.header-brand   { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; }
.site-title     { font-size: 1.5rem; font-weight: 500; letter-spacing: -0.02em; color: var(--ink-head); margin: 0; }
.site-tagline   { font-size: 1rem; color: var(--ink-soft); line-height: 1.6; font-weight: 300; margin: 0 0 0.75rem; }
.status-line    { display: flex; align-items: center; gap: 0.5rem; }
#status-dot     { display: inline-block; width: 8px; height: 8px; border-radius: 9999px; background: #22c55e; box-shadow: 0 0 0 3px var(--status-glow); flex-shrink: 0; }
#status-label   { font-size: 0.75rem; color: var(--ink-soft); font-weight: 500; letter-spacing: 0.03em; }

/* ── Search ── */
.search-wrap     { position: relative; width: 100%; max-width: 20rem; }
.search-icon-wrap {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  pointer-events: none; display: flex; color: var(--ink-muted);
}
#search-input {
  width: 100%; background: var(--surface); border: 1px solid var(--line-input);
  padding: 0.75rem 3.5rem 0.75rem 2.5rem; font-size: 0.875rem; color: var(--ink);
  box-shadow: 0 1px 2px rgba(0,0,0,.05); outline: none; font-family: inherit; box-sizing: border-box;
}
#search-input:focus { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.search-kbd-wrap {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  display: flex; gap: 3px; pointer-events: none;
}
kbd {
  display: inline-flex; align-items: center; border: 1px solid var(--line);
  background: var(--bg); padding: 0 4px; font-family: monospace; font-size: 10px; color: var(--ink-muted);
}

/* ── Tools grid ── */
#tools-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 3rem; }

/* ── Category heading ── */
.cat-heading {
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.15em;
  color: var(--ink-muted); margin: 0 0 1.5rem; border-left: 2px solid var(--accent); padding-left: 0.75rem;
}

/* ── Tool list + rows ── */
.tool-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.tool-row {
  display: flex; align-items: flex-start; padding: 0.75rem;
  margin-left: -0.75rem; margin-right: -0.75rem;
  transition: background 0.1s, box-shadow 0.1s; text-decoration: none; border-radius: 6px;
}
.tool-row:hover                { background: var(--hover-bg); box-shadow: var(--hover-sh); }
.tool-row:hover .tool-icon     { opacity: 1; color: var(--accent); }
.tool-row:hover .tool-name     { color: var(--accent); }
.tool-icon  { margin-top: 2px; margin-right: 1rem; opacity: var(--tool-icon-op); transition: opacity 0.1s, color 0.1s; color: var(--tool-icon-clr); flex-shrink: 0; }
.tool-name  { display: block; font-size: 0.875rem; font-weight: 500; color: var(--ink); transition: color 0.1s; }
.tool-desc  { display: block; font-size: 0.75rem; color: var(--ink-muted); margin-top: 2px; }
.hidden-tool { display: none !important; }

/* ── No results ── */
#no-results { display: none; padding: 4rem 0; text-align: center; color: var(--ink-muted); font-size: 0.875rem; margin: 0; }

/* ── External references ── */
#ext-refs { margin-top: 3.5rem; padding-top: 3rem; border-top: 1px solid var(--line); }
.ext-list { display: flex; flex-direction: column; }
.ext-row {
  display: flex; align-items: center; gap: 0.875rem; padding: 0.75rem;
  margin-left: -0.75rem; margin-right: -0.75rem;
  text-decoration: none; border-radius: 8px; transition: background 0.1s, box-shadow 0.1s; color: inherit;
}
.ext-row:hover              { background: var(--hover-bg); box-shadow: var(--hover-sh); }
.ext-icon                   { color: var(--ext-icon-clr); opacity: var(--ext-icon-op); flex-shrink: 0; transition: opacity 0.1s, color 0.1s; }
.ext-row:hover .ext-icon    { opacity: 1; color: var(--accent); }
.ext-body                   { flex: 1; min-width: 0; }
.ext-name                   { display: block; font-size: 0.875rem; font-weight: 500; color: var(--ink); transition: color 0.1s; }
.ext-row:hover .ext-name    { color: var(--accent); }
.ext-desc                   { display: block; font-size: 0.75rem; color: var(--ink-muted); margin-top: 1px; }
.ext-arrow                  { color: var(--line-input); flex-shrink: 0; transition: color 0.1s; }
.ext-row:hover .ext-arrow   { color: var(--accent); }

/* ── Footer ── */
footer {
  margin-top: 5rem; padding-top: 2rem; border-top: 1px solid var(--line);
  font-size: 0.75rem; color: var(--ink-muted);
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem;
}
footer p { margin: 0; }
footer a { color: var(--ink-muted); text-decoration: none; }
footer a:hover { color: var(--ink); }
.footer-links { display: flex; gap: 1rem; }

/* ── Dialogs ── */
.portal-dialog {
  border: none; border-radius: 12px; padding: 0;
  max-width: 480px; width: calc(100% - 2rem);
  box-shadow: 0 8px 40px rgba(0,0,0,.18);
  background: var(--surface); color: var(--ink);
}
.portal-dialog::backdrop { background: rgba(0,0,0,.45); }
.dialog-inner  { padding: 1.75rem; }
.dialog-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1.25rem; }
.dialog-title  { font-size: 0.875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-muted); margin: 0; }
.dialog-close  { background: none; border: none; cursor: pointer; padding: 0; line-height: 1; color: var(--ink-muted); font-size: 1.25rem; }
.dialog-close:hover { color: var(--ink-soft); }
.dialog-body p { font-size: 0.9375rem; line-height: 1.7; margin: 0 0 0.875rem; color: var(--ink); }
.dialog-body p:last-child { margin-bottom: 0; }
.dialog-gh-link {
  font-size: 0.8125rem; color: var(--ink-muted); text-decoration: none;
  display: inline-flex; align-items: center; gap: 0.375rem; margin-top: 1rem;
}
.dialog-gh-link:hover { color: var(--ink); }
#disclaimerDialog .dialog-header { margin-bottom: 1rem; }

/* ── Icons (sized via CSS; Lucide transfers class to the generated SVG) ── */
.icon-header { width: 28px; height: 28px; stroke-width: 1.5; flex-shrink: 0; stroke: var(--accent); }
.icon-tool   { width: 20px; height: 20px; stroke-width: 1.5; }
.icon-ext    { width: 18px; height: 18px; stroke-width: 1.5; }
.icon-search { width: 16px; height: 16px; stroke-width: 1.5; }
.icon-arrow  { width: 13px; height: 13px; stroke-width: 2; }