/* ===========================================================================
   SEO Audit Dashboard — styles
   Tailwind-style utility tokens without external CDN dependency.
   =========================================================================== */

:root {
  --bg: #0b1020;
  --panel: #131a31;
  --panel-2: #1a2240;
  --border: #283054;
  --fg: #e6ebff;
  --muted: #94a0c6;
  --accent: #5b8def;
  --accent-2: #8ab4ff;
  --ok: #1ec88a;
  --warn: #f0b341;
  --danger: #ff5d6c;
  --high: #ff7a4d;
  --medium: #f0b341;
  --low: #6ab7ff;
  --info: #94a0c6;
  --critical: #ff4368;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 8px 24px rgba(0,0,0,0.25);
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* =================== Header / Nav =================== */
.app-header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 28px;
  background: linear-gradient(180deg, #11183a, #0b1020);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.brand a {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--fg);
  font-weight: 700;
}
.brand-logo { font-size: 22px; }
.brand-name { letter-spacing: 0.4px; }
.main-nav { display: flex; gap: 4px; margin-left: 8px; }
.main-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}
.main-nav a:hover { color: var(--fg); background: var(--panel); }
.main-nav a.active { color: var(--fg); background: var(--panel-2); }
.oauth-badge { margin-left: auto; }
.badge {
  display: inline-block;
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-decoration: none;
  border: 1px solid transparent;
}
.badge-ok { background: rgba(30,200,138,0.15); color: var(--ok); border-color: rgba(30,200,138,0.4); }
.badge-warn { background: rgba(240,179,65,0.15); color: var(--warn); border-color: rgba(240,179,65,0.4); }

/* =================== Main / Layout =================== */
.app-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px;
}
.app-footer {
  border-top: 1px solid var(--border);
  padding: 14px 28px;
  text-align: center;
  color: var(--muted);
}

/* =================== Headings & utilities =================== */
h1 { font-size: 28px; margin: 0 0 16px; letter-spacing: -0.2px; }
h2 { font-size: 20px; margin: 24px 0 12px; }
h3 { font-size: 16px; margin: 16px 0 8px; color: var(--muted); font-weight: 600; }

.subtle { color: var(--muted); }
.mono { font-family: var(--font-mono); }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.grow { flex: 1; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .app-main { padding: 16px; }
  .app-header { flex-wrap: wrap; gap: 12px; padding: 12px 16px; }
}

/* =================== Cards =================== */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.card h2 { margin-top: 0; }
.card .stats { display: flex; gap: 18px; margin-top: 8px; }

/* =================== Stat blocks / scores =================== */
.score {
  font-size: 56px;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1;
}
.score-label { color: var(--muted); font-size: 13px; margin-top: 4px; }
.score-circle {
  --p: 0;
  --c: var(--accent);
  width: 110px; height: 110px;
  border-radius: 50%;
  background:
    conic-gradient(var(--c) calc(var(--p) * 1%), rgba(255,255,255,0.06) 0);
  display: grid;
  place-items: center;
  position: relative;
}
.score-circle::after {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  background: var(--panel);
}
.score-circle span { position: relative; font-size: 26px; font-weight: 700; }

.kpi {
  display: flex; flex-direction: column;
  background: var(--panel-2);
  border-radius: var(--radius);
  padding: 14px 16px;
  border: 1px solid var(--border);
}
.kpi .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px; }
.kpi .value { font-size: 22px; font-weight: 700; margin-top: 4px; }
.kpi .delta { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* =================== Tables =================== */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* =================== Forms =================== */
label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
input[type="text"], input[type="url"], input[type="email"], select, textarea {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 14px;
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(91,141,239,0.25); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: white;
  border: none;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--accent-2); }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.btn-secondary { background: var(--panel-2); border: 1px solid var(--border); color: var(--fg); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: var(--danger); }
.btn-small { padding: 5px 10px; font-size: 12px; }

/* =================== Finding rows =================== */
.finding {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 14px 16px;
  margin-bottom: 12px;
  position: relative;
}
.finding-head { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.finding h3 { margin: 0; color: var(--fg); font-size: 16px; font-weight: 700; }
.finding .meta { color: var(--muted); font-size: 13px; }
.finding .detail { color: var(--muted); margin-top: 8px; }
.finding pre {
  background: #0a0e1f;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12.5px;
  overflow-x: auto;
  color: #c8d3ff;
  margin: 10px 0 0;
}
.finding .actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.severity-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.severity-critical { background: rgba(255,67,104,0.15); color: var(--critical); border: 1px solid rgba(255,67,104,0.5); }
.severity-high { background: rgba(255,122,77,0.15); color: var(--high); border: 1px solid rgba(255,122,77,0.5); }
.severity-medium { background: rgba(240,179,65,0.15); color: var(--medium); border: 1px solid rgba(240,179,65,0.5); }
.severity-low { background: rgba(106,183,255,0.15); color: var(--low); border: 1px solid rgba(106,183,255,0.5); }
.severity-info { background: rgba(148,160,198,0.15); color: var(--info); border: 1px solid rgba(148,160,198,0.5); }

.category-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  background: rgba(91,141,239,0.1);
  color: var(--accent-2);
  border: 1px solid rgba(91,141,239,0.3);
}

/* =================== Empty / loading / misc =================== */
.empty {
  text-align: center;
  padding: 48px 16px;
  color: var(--muted);
}
.empty h2 { color: var(--fg); }
.loader {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  vertical-align: -2px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.progress {
  height: 8px; background: rgba(255,255,255,0.06);
  border-radius: 999px; overflow: hidden;
  border: 1px solid var(--border);
}
.progress > div {
  height: 100%; background: linear-gradient(90deg, var(--accent-2), var(--accent));
  width: 0%;
  transition: width 0.4s ease;
}

/* =================== Charts (pure CSS bars) =================== */
.bar-chart { display: flex; flex-direction: column; gap: 6px; }
.bar-chart .bar-row { display: grid; grid-template-columns: 1fr 90px; gap: 10px; align-items: center; font-size: 13px; }
.bar-chart .bar-row .bar-track { background: rgba(255,255,255,0.05); border-radius: 999px; height: 8px; position: relative; }
.bar-chart .bar-row .bar-fill { position: absolute; left: 0; top: 0; bottom: 0; background: var(--accent); border-radius: 999px; }
.bar-chart .bar-row .bar-label { color: var(--muted); }
.bar-chart .bar-row .bar-value { color: var(--fg); font-variant-numeric: tabular-nums; text-align: right; }

/* =================== Diff view =================== */
.diff {
  background: #0a0e1f;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.diff .line { display: grid; grid-template-columns: 50px 1fr; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.5; }
.diff .line .num { color: #4a5384; text-align: right; padding: 0 8px; user-select: none; background: #060a18; }
.diff .line .src { padding: 0 12px; white-space: pre-wrap; word-break: break-word; }
.diff .add .src { background: rgba(30,200,138,0.08); color: #c4f7e5; }
.diff .add .num { background: rgba(30,200,138,0.1); color: var(--ok); }
.diff .del .src { background: rgba(255,93,108,0.08); color: #ffd1d6; text-decoration: line-through; }
.diff .del .num { background: rgba(255,93,108,0.1); color: var(--danger); }
.diff .ctx .src { color: #b8c3e0; }

/* =================== Alert / connection result =================== */
.connect-result { display: grid; place-items: center; min-height: 60vh; }
.connect-result .card { text-align: center; max-width: 480px; }

/* =================== Utilities =================== */
.text-ok { color: var(--ok); }
.text-warn { color: var(--warn); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--muted); }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.pill {
  display: inline-block; padding: 2px 8px;
  border-radius: 999px; font-size: 11px;
  background: var(--panel-2); border: 1px solid var(--border);
  color: var(--muted); margin-right: 4px;
}