/*
  Shared design system for the analytics tool's internal pages (Overview, Explorer, Settings).
  Load this first, then add a page-specific <style> block after it to extend or
  override anything here — the cascade makes per-page customisation the default,
  not a fight against !important. Change a token below and it updates everywhere.
*/

:root {
  /* Colour */
  --color-bg: #f4f7fb;
  --color-surface: #ffffff;
  --color-surface-muted: #f7f9fb;
  --color-border: #d6dce4;
  --color-border-strong: #9aa6b2;
  --color-text: #101828;
  --color-text-muted: #475467;
  --color-primary: #101828;
  --color-primary-hover: #344054;
  --color-primary-contrast: #ffffff;
  --color-link: #175cd3;
  --color-accent: #0e9384;
  --color-accent-bg: #f0fdf9;
  --color-success-border: #1a7f37;
  --color-success-bg: #eefbf0;
  --color-warning-border: #b98900;
  --color-warning-bg: #fff8e6;
  --color-warning-text: #6b5100;
  --color-danger: #b42318;
  --color-danger-bg: #fdecea;
  --color-status-bg: #eef1f4;

  /* Spacing scale (multiples of 4px) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --font-sans: -apple-system, "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-size-sm: 13px;
  --font-size-base: 15px;
  --font-size-lg: 18px;

  --shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-md: 0 10px 30px rgba(16, 24, 40, 0.09);
  --container-max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font: var(--font-size-base) / 1.5 var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
}

h1, h2, h3 { line-height: 1.25; margin: 0 0 var(--space-2); }
p { margin: 0 0 var(--space-2); }
a { color: var(--color-link); }

.page {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-7) var(--space-5);
}

/* Dense pages (tables, dropdown/detail panels, grids) feel cramped when capped at a
   fixed width on a wide desktop monitor; let the container grow with the viewport
   instead of staying fixed at --container-max. Pages that want a narrower reading
   width (e.g. Settings) declare their own .page override after this stylesheet. */
@media (min-width: 1100px) {
  .page { max-width: min(1440px, 94vw); }
}

/* Primary navigation stays short; secondary control-plane areas live under More. */
.topnav { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; margin: calc(-1 * var(--space-3)) calc(-1 * var(--space-3)) var(--space-2); padding: var(--space-3); border: 1px solid rgba(214, 220, 228, 0.85); border-radius: var(--radius-lg); background: rgba(255, 255, 255, 0.96); box-shadow: var(--shadow-sm); backdrop-filter: blur(12px); }
.nav-brand { display: flex; align-items: center; gap: var(--space-2); margin-right: var(--space-2); font-weight: 750; white-space: nowrap; }
.nav-brand { color: var(--color-text); text-decoration: none; }
.topnav > .nav-brand { padding: 0; border: 0; background: transparent; }
.topnav > .nav-brand:hover { border-color: transparent; }
.brand-mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; color: #fff; background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); }
.nav-primary { display: flex; gap: var(--space-1); flex-wrap: wrap; }
.nav-public { display:flex; align-items:center; gap:var(--space-2); margin-left:auto; }
.nav-public a:not(.button) { color:var(--color-text); font-weight:650; }
.topnav a {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-link);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--font-size-sm);
}
.topnav a:hover { border-color: var(--color-border-strong); }
.topnav a[aria-current="page"] {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
  border-color: var(--color-primary);
}
.nav-more { position: relative; margin-left: auto; }
.nav-more summary { list-style: none; cursor: pointer; padding: var(--space-2) var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); color: var(--color-link); background: var(--color-surface); font-size: var(--font-size-sm); }
.nav-more summary::-webkit-details-marker { display: none; }
.nav-more summary::after { content: " +"; }
.nav-more[open] summary::after { content: " −"; }
.nav-menu { position: absolute; z-index: 10; right: 0; top: calc(100% + var(--space-2)); display: grid; min-width: 190px; padding: var(--space-2); border: 1px solid var(--color-border-strong); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: 0 8px 20px rgba(23, 32, 44, 0.12); }
.nav-menu a { border: 0; }
.mobile-quicknav { display: none; }
.shell-context { display:flex; align-items:center; gap:var(--space-2); flex-wrap:wrap; min-height:32px; margin:0 calc(-1 * var(--space-3)) var(--space-5); padding:0 var(--space-3); color:var(--color-text-muted); font-size:12px; }
.shell-context[hidden] { display:none; }
.shell-context > span, .shell-context > a { padding:3px 8px; border:1px solid var(--color-border); border-radius:999px; background:var(--color-surface); text-decoration:none; }
.shell-project { display:inline-flex; align-items:center; gap:6px; }
.shell-project strong { color:var(--color-text); }
.shell-project small { color:var(--color-text-muted); text-transform:capitalize; }
.shell-health.good { color:var(--color-success-border); background:var(--color-success-bg); border-color:#b7e5bf; }
.shell-health.warn { color:var(--color-warning-text); background:var(--color-warning-bg); border-color:#efd48b; }
.shell-health.bad { color:var(--color-danger); background:var(--color-danger-bg); border-color:#f2b8b1; }
.shell-findings { color:var(--color-warning-text); background:var(--color-warning-bg) !important; border-color:#efd48b !important; }
.shell-findings.clear { color:var(--color-success-border); background:var(--color-success-bg) !important; border-color:#b7e5bf !important; }

/* Action rows retain readable spacing when controls wrap onto another line. */
.action-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin: var(--space-5) 0;
}

/* Buttons and button-like links */
button, .button {
  font: inherit;
  font-size: var(--font-size-sm);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: inherit;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
button:hover, .button:hover { border-color: var(--color-text-muted); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.primary, .button.primary {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
  border-color: var(--color-primary);
}
button.primary:hover, .button.primary:hover { background: var(--color-primary-hover); }
button.danger, .button.danger { border-color: var(--color-danger); color: var(--color-danger); }
button.danger:hover, .button.danger:hover { background: var(--color-danger-bg); }

button:focus-visible, .button:focus-visible, a:focus-visible,
input:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* Read-only info tiles (metric counts, stat summaries) */
.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}
.card > span { color: var(--color-text-muted); font-size: var(--font-size-sm); }
.card > strong { display: block; font-size: 30px; margin-top: var(--space-1); }

/* Small inline status pill */
.status {
  padding: 2px var(--space-2);
  border-radius: 999px;
  background: var(--color-status-bg);
  display: inline-block;
  font-size: var(--font-size-sm);
}
.status.live, .status.approved, .status.delivered { color: var(--color-success-border); background: var(--color-success-bg); }
.status.review, .status.preview, .status.pending { color: var(--color-warning-text); background: var(--color-warning-bg); }
.status.blocked, .status.failed { color: var(--color-danger); background: var(--color-danger-bg); }

.eyebrow { color: var(--color-accent); font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.proof-card { border: 1px solid #99e4d8; background: linear-gradient(135deg, var(--color-accent-bg), #ffffff); border-radius: var(--radius-lg); padding: var(--space-5); box-shadow: var(--shadow-sm); }
.proof-card h2 { margin-top: var(--space-1); }
.proof-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-3); margin-top: var(--space-4); }
.proof-metric { padding: var(--space-3); border: 1px solid #c7eee8; border-radius: var(--radius-md); background: rgba(255,255,255,.78); }
.proof-metric span { display: block; color: var(--color-text-muted); font-size: var(--font-size-sm); }
.proof-metric strong { display: block; margin-top: var(--space-1); font-size: 22px; }

/* Status banners: off / preview / live, reused by any destination */
.banner {
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.banner h2 { font-size: var(--font-size-base); margin-bottom: var(--space-1); }
.banner p { margin: 0; color: var(--color-text-muted); }
.banner.off { border-color: var(--color-border); }
.banner.preview { border-color: var(--color-warning-border); background: var(--color-warning-bg); }
.banner.live { border-color: var(--color-success-border); background: var(--color-success-bg); }

/* Tables */
table { width: 100%; border-collapse: collapse; table-layout: fixed; }
.table-scroll { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.table-scroll table { min-width: 920px; }
th, td {
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3);
  vertical-align: top;
  overflow-wrap: anywhere;
  font-size: var(--font-size-sm);
}
th { color: var(--color-text-muted); font-weight: 600; }

pre {
  white-space: pre;
  overflow-x: auto;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  font-family: var(--font-mono);
}

/* Forms */
fieldset {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-5);
  background: var(--color-surface);
}
legend { padding: 0 var(--space-2); font-weight: 600; }

label { display: grid; gap: var(--space-1); color: var(--color-text-muted); font-size: var(--font-size-sm); }
input[type="text"], input[type="password"], input[type="number"], select {
  font: inherit;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
}

/* Callouts */
.note {
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}
.warning {
  background: var(--color-warning-bg);
  border: 1px solid var(--color-warning-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  color: var(--color-warning-text);
}

/* Expandable detail sections */
details summary { color: var(--color-link); cursor: pointer; }
.detail {
  margin-top: var(--space-2);
  padding: var(--space-4);
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  max-height: 70vh;
  overflow-y: auto;
}
.detail pre {
  padding: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}
.detail strong { display: block; margin-bottom: var(--space-1); }

@media (max-width: 640px) {
  body { font-size: 14px; }
  .page { padding: var(--space-4) var(--space-3) calc(88px + env(safe-area-inset-bottom)); }
  .topnav { flex-wrap: nowrap; margin: calc(-1 * var(--space-2)) calc(-1 * var(--space-2)) var(--space-5); padding: var(--space-2); border-radius: var(--radius-md); }
  .shell-context { margin: 0 calc(-1 * var(--space-2)) var(--space-4); padding: 0 var(--space-2); gap: var(--space-1); }
  .shell-context > span, .shell-context > a { font-size: 11px; }
  .nav-primary { min-width: 0; flex: 1 1 auto; flex-wrap: nowrap; overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-width: none; }
  .nav-public { width:100%; justify-content:space-between; margin-left:0; }
  .nav-primary::-webkit-scrollbar { display: none; }
  .nav-primary a { flex: 0 0 auto; white-space: nowrap; text-align: center; }
  .nav-more { flex: 0 0 auto; margin-left: 0; }
  .nav-brand span:last-child { display: none; }
  .nav-menu { position: fixed; top: 64px; right: var(--space-3); left: var(--space-3); max-height: calc(100dvh - 80px); overflow-y: auto; box-shadow: var(--shadow-md); }
  .action-row > button, .action-row > .button { flex: 1 1 100%; justify-content: center; }
  button, .button, input, select { min-height: 42px; }
  .proof-metrics { grid-template-columns: 1fr; }

  .responsive-table { border: 0; overflow: visible; }
  .responsive-table table, .responsive-table tbody, .responsive-table tr, .responsive-table td { display: block; width: 100%; min-width: 0; }
  .responsive-table thead { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
  .responsive-table tr { margin-bottom: var(--space-3); padding: var(--space-2) var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-sm); }
  .responsive-table td { display: grid; grid-template-columns: minmax(104px, 34%) minmax(0, 1fr); gap: var(--space-3); padding: var(--space-3) 0; border-bottom: 1px solid var(--color-border); }
  .responsive-table td:last-child { border-bottom: 0; }
  .responsive-table td::before { content: attr(data-label); color: var(--color-text-muted); font-size: 12px; font-weight: 600; }
  .responsive-table td[colspan] { display: block; }
  .responsive-table td[colspan]::before { display: none; }
  .mobile-quicknav { position: fixed; z-index: 30; right: var(--space-3); bottom: calc(var(--space-3) + env(safe-area-inset-bottom)); left: var(--space-3); display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-1); padding: var(--space-2); border: 1px solid var(--color-border); border-radius: 16px; background: rgba(255,255,255,.96); box-shadow: 0 12px 35px rgba(16,24,40,.2); backdrop-filter: blur(12px); }
  .mobile-quicknav a { padding: var(--space-2) var(--space-1); border-radius: var(--radius-md); color: var(--color-text-muted); font-size: 11px; font-weight: 650; text-align: center; text-decoration: none; }
  .mobile-quicknav a[aria-current='page'] { color: var(--color-primary-contrast); background: var(--color-primary); }
}