/* EMon shared design system. System fonts only - no external requests, no render-blocking CDN. */

:root {
  --bg: #f6f7f9;
  --bg-elevated: #ffffff;
  --border: #e2e5ea;
  --text: #1a1d23;
  --text-muted: #5c6370;
  --text-faint: #8a909c;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #eaf1ff;
  --success: #15803d;
  --success-soft: #eaf7ee;
  --danger: #b91c1c;
  --danger-soft: #fdecec;
  --code-bg: #f1f2f5;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 1px 3px rgba(16, 24, 40, 0.06);
  --radius: 10px;
  --header-h: 60px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --bg-elevated: #171a21;
    --border: #262a33;
    --text: #e7e9ec;
    --text-muted: #a2a8b4;
    --text-faint: #6b7280;
    --accent: #5b8def;
    --accent-hover: #7ba3f2;
    --accent-soft: #16223b;
    --success: #4ade80;
    --success-soft: #12261a;
    --danger: #f87171;
    --danger-soft: #2a1414;
    --code-bg: #1d212a;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px rgba(0, 0, 0, 0.24);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 24px;
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
}
.brand:hover { text-decoration: none; color: var(--text); }
.brand-sub { font-weight: 400; font-size: 13px; color: var(--text-faint); }

.header-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 13.5px;
}
.header-nav a { color: var(--text-muted); }
.header-nav a:hover { color: var(--text); text-decoration: none; }

.auth-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}
.auth-pill.ok { background: var(--success-soft); color: var(--success); }
.auth-pill.warn { background: var(--danger-soft); color: var(--danger); }
.auth-pill .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.hero { margin-bottom: 36px; }
.hero h1 { font-size: 28px; margin: 0 0 10px; letter-spacing: -0.01em; }
.hero p { color: var(--text-muted); max-width: 68ch; margin: 0; }
.hero .contact { margin-top: 10px; font-size: 13.5px; color: var(--text-faint); }

.login-callout {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 13.5px;
  width: fit-content;
}
.login-callout a { color: var(--danger); font-weight: 600; text-decoration: underline; }

.quicklinks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}
.quicklinks li a {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-size: 13px;
}
.quicklinks li a:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }

.section { margin-top: 48px; }
.section-title {
  font-size: 12.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin: 0 0 16px;
  padding-top: 8px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
}
.card-title a { color: var(--text); }
.card-title a:hover { color: var(--accent); text-decoration: none; }

.status {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 3px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.status.active { background: var(--success-soft); color: var(--success); }
.status.inactive { background: var(--danger-soft); color: var(--danger); }
.status .dot { width: 5px; height: 5px; border-radius: 50%; background: currentColor; }

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 13.5px;
  line-height: 1.55;
}
.card .card-links { margin-top: 4px; font-size: 12.5px; }

.endpoint {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.endpoint summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 14px;
}
.endpoint summary::-webkit-details-marker { display: none; }
.endpoint summary::after {
  content: "";
  margin-left: auto;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--text-faint);
  border-bottom: 2px solid var(--text-faint);
  transform: rotate(-45deg);
  transition: transform 0.15s ease;
}
.endpoint[open] summary::after { transform: rotate(45deg); }

.method {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 7px;
  border-radius: 5px;
  background: var(--accent-soft);
  color: var(--accent);
}
.method.post { background: var(--success-soft); color: var(--success); }

.endpoint-body { padding: 0 18px 18px; }
.endpoint-body h4 {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-faint);
  margin: 14px 0 6px;
}
.endpoint-body p { margin: 0; color: var(--text-muted); font-size: 13.5px; }

pre, code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12.5px;
}
pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  overflow-x: auto;
  color: var(--text);
  margin: 0;
}

.divider { border: none; border-top: 1px solid var(--border); margin: 48px 0 0; }

footer {
  margin-top: 48px;
  padding-top: 20px;
  color: var(--text-faint);
  font-size: 12.5px;
}

@media (max-width: 620px) {
  .site-header { padding: 0 16px; }
  .shell { padding: 28px 16px 60px; }
  .header-nav { display: none; }
}

/* ============================================================
   App shell - shared by tool/report pages (not the home page)
   ============================================================ */

.app-main {
  max-width: 1320px;
  margin: 0 auto;
  padding: 28px 24px 80px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-faint);
  margin-bottom: 14px;
}
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--accent); text-decoration: none; }

.page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.page-head h1 { font-size: 22px; margin: 0 0 4px; letter-spacing: -0.01em; }
.page-head .subtitle { color: var(--text-muted); font-size: 13.5px; margin: 0; max-width: 68ch; }

.page-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
.btn.btn-ghost { background: transparent; }

.meta-line {
  font-size: 12.5px;
  color: var(--text-faint);
  margin: 0 0 20px;
}
.meta-line strong { color: var(--text-muted); font-weight: 600; }

/* Stat row */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}
.stat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  box-shadow: var(--shadow);
}
.stat-card .stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  font-weight: 700;
}
.stat-card .stat-value { font-size: 19px; font-weight: 700; margin-top: 3px; }
.stat-value.pos { color: var(--success); }
.stat-value.neg { color: var(--danger); }

/* ============================================================
   Data table component (progressive enhancement - see datatable.js)
   ============================================================ */

.data-table {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 24px;
  overflow: hidden;
}

.dt-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

.dt-title {
  font-size: 13.5px;
  font-weight: 700;
  margin-right: auto;
}
.dt-title .dt-title-count { font-weight: 400; color: var(--text-faint); }

.dt-search, .dt-filter {
  font: inherit;
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}
.dt-search { min-width: 180px; flex: 1 1 180px; max-width: 260px; }
.dt-search:focus, .dt-filter:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.dt-count { font-size: 12px; color: var(--text-faint); white-space: nowrap; }

.dt-empty {
  padding: 28px 14px;
  text-align: center;
  color: var(--text-faint);
  font-size: 13.5px;
  display: none;
}

.dt-scroll { overflow-x: auto; }

table.dt {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  white-space: nowrap;
}
table.dt th, table.dt td { padding: 9px 12px; text-align: left; }
table.dt thead th {
  position: sticky;
  top: 0;
  background: var(--bg-elevated);
  color: var(--text-faint);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  z-index: 1;
}
table.dt thead th.dt-sortable { cursor: pointer; user-select: none; }
table.dt thead th.dt-sortable:hover { color: var(--accent); }
table.dt thead th.dt-sortable::after { content: "\2195"; margin-left: 5px; opacity: 0.35; font-size: 10px; }
table.dt thead th[aria-sort="ascending"]::after { content: "\2191"; opacity: 1; color: var(--accent); }
table.dt thead th[aria-sort="descending"]::after { content: "\2193"; opacity: 1; color: var(--accent); }
table.dt tbody tr { border-bottom: 1px solid var(--border); }
table.dt tbody tr:last-child { border-bottom: none; }
table.dt tbody tr:hover { background: var(--accent-soft); }
table.dt tbody tr.dt-clickable { cursor: pointer; }
table.dt td.num { text-align: right; font-variant-numeric: tabular-nums; }
table.dt td.pos { color: var(--success); }
table.dt td.neg { color: var(--danger); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.badge-pos { background: var(--success-soft); color: var(--success); }
.badge-neg { background: var(--danger-soft); color: var(--danger); }
.badge-neutral { background: var(--code-bg); color: var(--text-muted); }
.badge-new { background: var(--accent-soft); color: var(--accent); }
.badge-warn { background: var(--danger-soft); color: var(--danger); }

/* ============================================================
   Chart card (dependency-free inline-SVG line charts, see charts.js)
   ============================================================ */

.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}
.chart-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
}
.chart-card h3 { font-size: 12.5px; font-weight: 700; margin: 0 0 10px; color: var(--text-muted); }
.chart-card svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart-line { fill: none; stroke: var(--accent); stroke-width: 2; }
.chart-area { fill: var(--accent); opacity: 0.08; }
.chart-axis { stroke: var(--border); stroke-width: 1; }
.chart-axis-text { fill: var(--text-faint); font-size: 9.5px; }
.chart-dot { fill: var(--accent); }
.chart-dot-hit { fill: transparent; cursor: crosshair; }

.chart-tooltip {
  position: fixed;
  pointer-events: none;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow);
  padding: 6px 9px;
  font-size: 12px;
  color: var(--text);
  z-index: 50;
  display: none;
  white-space: nowrap;
}

@media (max-width: 620px) {
  .app-main { padding: 20px 16px 60px; }
  .page-head { flex-direction: column; }
}