/* ==========================================================================
   GoogleHelpit — styles.css
   Single stylesheet. Dark-first "nerdy / terminal" theme with a light toggle.
   Original visual identity (NOT Google's official branding).
   ========================================================================== */

:root {
  /* Dark theme (default) */
  --bg:        #0d1117;
  --bg-alt:    #161b22;
  --bg-card:   #161b22;
  --bg-inset:  #0b0f14;
  --border:    #283040;
  --border-hi: #3a445a;
  --text:      #e6edf3;
  --text-dim:  #9aa7b4;
  --text-faint:#828d9b;

  /* Original accent palette — a nerdy terminal green + four playful chips
     that nod at "four colors" without copying Google's logo. */
  --accent:    #35d07f;   /* terminal green */
  --accent-2:  #58a6ff;   /* blue */
  --c-blue:    #4a90e2;
  --c-red:     #e2554a;
  --c-yellow:  #e2b84a;
  --c-green:   #4ae27a;

  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius: 10px;
  --maxw: 1080px;
  --shadow: 0 6px 24px rgba(0,0,0,.35);
}

:root[data-theme="light"] {
  --bg:        #f6f8fa;
  --bg-alt:    #ffffff;
  --bg-card:   #ffffff;
  --bg-inset:  #eef1f5;
  --border:    #d5dbe2;
  --border-hi: #b9c2cc;
  --text:      #1b2430;
  --text-dim:  #55606d;
  --text-faint:#8b95a1;
  --shadow: 0 6px 20px rgba(20,30,50,.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-2); text-decoration: underline; }
a:hover { text-decoration: underline; }
/* Navigational / component links sit outside running text, so an underline
   isn't needed to distinguish them (WCAG "use of color"). In-text links keep it. */
.brand, .nav-links a, .nav-card, .chip, .go { text-decoration: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13,17,23,.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
:root[data-theme="light"] .site-header { background: rgba(255,255,255,.85); }

.nav {
  display: flex; align-items: center; gap: 18px;
  height: 62px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-weight: 700; font-size: 1.15rem;
  color: var(--text); text-decoration: none; white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand .logo { width: 30px; height: 30px; }
.brand .tag { color: var(--accent); }
.brand .cursor { color: var(--accent); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.nav-links { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.nav-links a {
  color: var(--text-dim);
  font-size: .92rem;
  padding: 7px 11px; border-radius: 7px;
  font-family: var(--mono);
}
.nav-links a:hover { color: var(--text); background: var(--bg-alt); text-decoration: none; }
.nav-links a.active { color: var(--accent); background: var(--bg-alt); }

.theme-toggle {
  background: var(--bg-alt); border: 1px solid var(--border);
  color: var(--text-dim); cursor: pointer;
  width: 38px; height: 34px; border-radius: 7px; font-size: 1rem;
  display: inline-flex; align-items: center; justify-content: center;
}
.theme-toggle:hover { color: var(--text); border-color: var(--border-hi); }

.nav-toggle { display: none; background: none; border: 1px solid var(--border);
  color: var(--text); width: 38px; height: 34px; border-radius: 7px; cursor: pointer; }

/* ---------- Hero ---------- */
.hero { padding: 64px 0 40px; text-align: center; }
.hero .prompt { font-family: var(--mono); color: var(--accent); font-size: .95rem; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); margin: .3em 0 .2em; line-height: 1.1; }
.hero h1 .grad {
  background: linear-gradient(90deg, var(--c-blue), var(--c-green), var(--c-yellow), var(--c-red));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.sub { color: var(--text-dim); font-size: 1.12rem; max-width: 640px; margin: 0 auto 26px; }

/* ---------- Search ---------- */
.search-wrap { max-width: 620px; margin: 0 auto; position: relative; }
.search-wrap .sigil {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--accent); font-family: var(--mono); font-weight: 700;
}
#site-search, .filter-box {
  width: 100%; padding: 13px 16px 13px 34px;
  background: var(--bg-inset); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text);
  font-family: var(--mono); font-size: 1rem;
}
#site-search:focus, .filter-box:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(53,208,127,.15);
}
.filter-box { padding-left: 16px; }
.search-hint { color: var(--text-faint); font-size: .8rem; margin-top: 8px; font-family: var(--mono); }

/* ---------- Section headings ---------- */
section { padding: 34px 0; }
.section-title { font-size: 1.5rem; margin: 0 0 4px; display: flex; align-items: center; gap: 10px; }
.section-title .hash { color: var(--accent); font-family: var(--mono); }
.section-sub { color: var(--text-dim); margin: 0 0 22px; }

/* ---------- Card grid (landing nav) ---------- */
.card-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.nav-card {
  display: block; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; color: var(--text);
  transition: transform .12s ease, border-color .12s ease;
}
.nav-card:hover { text-decoration: none; transform: translateY(-3px); border-color: var(--accent); }
.nav-card .ico { font-size: 1.8rem; }
.nav-card h3 { margin: 12px 0 6px; font-size: 1.15rem; }
.nav-card p { color: var(--text-dim); margin: 0; font-size: .93rem; }
.nav-card .go { color: var(--accent); font-family: var(--mono); font-size: .85rem; margin-top: 12px; display: inline-block; }

/* ---------- Stats strip ---------- */
.stats { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 26px; }
.stat {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 22px; text-align: center; min-width: 130px;
}
.stat .n { font-size: 1.7rem; font-weight: 700; font-family: var(--mono); color: var(--accent); }
.stat .l { color: var(--text-dim); font-size: .85rem; }

/* ---------- Troubleshooting cards ---------- */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 20px; }
.filter-bar .filter-box { flex: 1; min-width: 220px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.chip {
  font-family: var(--mono); font-size: .82rem; cursor: pointer;
  padding: 6px 12px; border-radius: 20px;
  background: var(--bg-alt); border: 1px solid var(--border); color: var(--text-dim);
}
.chip:hover { color: var(--text); border-color: var(--border-hi); }
.chip.active { background: var(--accent); color: #06210f; border-color: var(--accent); font-weight: 600; }

.cat-group { margin-bottom: 30px; }
.cat-group > h2 {
  font-size: 1.2rem; font-family: var(--mono); color: var(--text);
  border-left: 3px solid var(--accent); padding-left: 12px; margin: 26px 0 14px;
}

.issue {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 12px; overflow: hidden;
}
.issue > summary {
  cursor: pointer; list-style: none; padding: 16px 18px;
  display: flex; align-items: flex-start; gap: 12px; font-weight: 600;
}
.issue > summary::-webkit-details-marker { display: none; }
.issue > summary:hover { background: var(--bg-alt); }
.issue > summary .caret { color: var(--accent); transition: transform .15s ease; margin-top: 2px; font-family: var(--mono); }
.issue[open] > summary .caret { transform: rotate(90deg); }
.issue > summary .sym { flex: 1; }
.issue .body { padding: 4px 18px 18px 42px; border-top: 1px solid var(--border); }
.issue .body dl { margin: 0; }
.issue .body dt {
  font-family: var(--mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em;
  color: var(--accent); margin-top: 14px;
}
.issue .body dd { margin: 4px 0 0; color: var(--text); }
.issue .body ol { margin: 4px 0 0; padding-left: 20px; }
.issue .body .docs a { font-family: var(--mono); font-size: .88rem; word-break: break-all; }

/* Inline code + code blocks */
code {
  font-family: var(--mono); font-size: .88em;
  background: var(--bg-inset); border: 1px solid var(--border);
  padding: 1px 6px; border-radius: 5px; color: var(--accent);
}
.codeblock {
  position: relative; background: var(--bg-inset); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px 14px; margin: 8px 0 0; overflow-x: auto;
}
.codeblock code { background: none; border: none; padding: 0; color: var(--text); white-space: pre; }
.copy-btn {
  position: absolute; top: 8px; right: 8px;
  background: var(--bg-alt); border: 1px solid var(--border); color: var(--text-dim);
  font-family: var(--mono); font-size: .72rem; padding: 3px 8px; border-radius: 5px; cursor: pointer;
}
.copy-btn:hover { color: var(--text); border-color: var(--accent); }
.copy-btn.copied { color: var(--accent); border-color: var(--accent); }

.no-results { color: var(--text-dim); font-family: var(--mono); padding: 20px 0; display: none; }

/* ---------- Generic content (learn / certs / about) ---------- */
.prose { max-width: 860px; }
.prose h2 { font-size: 1.35rem; border-left: 3px solid var(--accent); padding-left: 12px; margin: 34px 0 12px; }
.prose h3 { font-size: 1.08rem; margin: 22px 0 8px; }
.prose ul { padding-left: 22px; }
.prose li { margin: 5px 0; }
.callout {
  background: var(--bg-alt); border: 1px solid var(--border); border-left: 3px solid var(--c-yellow);
  border-radius: 8px; padding: 14px 16px; margin: 18px 0;
}
.callout.info { border-left-color: var(--accent-2); }
.callout.tip { border-left-color: var(--accent); }

.res-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.res-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.res-card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.res-card ul { margin: 0; padding-left: 18px; }
.res-card li { margin: 6px 0; }
.res-card .meta { color: var(--text-faint); font-size: .82rem; font-family: var(--mono); }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); margin: 16px 0; }
table.data { border-collapse: collapse; width: 100%; min-width: 640px; font-size: .92rem; }
table.data th, table.data td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.data th { background: var(--bg-inset); font-family: var(--mono); color: var(--text); font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
table.data tr:last-child td { border-bottom: none; }
table.data tbody tr:hover td { background: var(--bg-alt); }
.badge { font-family: var(--mono); font-size: .75rem; padding: 2px 8px; border-radius: 12px; white-space: nowrap; }
.badge.found { background: rgba(74,144,226,.15); color: #6ba6ee; }
.badge.assoc { background: rgba(74,226,122,.15); color: var(--c-green); }
.badge.pro   { background: rgba(226,184,74,.15); color: var(--c-yellow); }
.badge.soon  { background: rgba(88,166,255,.15); color: var(--accent-2); }

/* ---------- Path / steps ---------- */
.path { list-style: none; counter-reset: step; padding: 0; margin: 16px 0; }
.path li {
  position: relative; padding: 14px 16px 14px 56px; margin-bottom: 12px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
}
.path li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 14px; top: 14px;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent); color: #06210f; font-family: var(--mono); font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border); margin-top: 40px;
  padding: 30px 0; color: var(--text-dim); font-size: .9rem;
}
.site-footer .cols { display: flex; flex-wrap: wrap; gap: 30px; justify-content: space-between; }
.site-footer a { color: var(--text-dim); }
.site-footer a:hover { color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .nav-links {
    position: absolute; top: 62px; left: 0; right: 0;
    flex-direction: column; background: var(--bg-alt);
    border-bottom: 1px solid var(--border); padding: 8px; gap: 2px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 11px; }
  .nav-toggle { display: inline-block; margin-left: auto; }
  .theme-toggle { order: 3; }
  .hero { padding: 44px 0 30px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto; }
}