/* MailAudit design system: dark operations theme (see design-system/mailaudit/MASTER.md).
   Colors: background #0F172A, card #111827, muted #1E293B, border #334155, text #F8FAFC, muted text #CBD5E1.
   Status: pass green, warning amber, fail red, inconclusive slate-blue. Every status also has a text label. */
:root {
  --bg: #0F172A;
  --card: #111827;
  --muted: #1E293B;
  --border: #334155;
  --fg: #F8FAFC;
  --fg-muted: #CBD5E1;
  --fg-dim: #94A3B8;
  --brand: #16A34A;
  --brand-strong: #4ADE80;
  --accent: #DC2626;
  --pass: #4ADE80;
  --warning: #FBBF24;
  --fail: #F87171;
  --info: #7DD3FC;
  --inconclusive: #A5B4FC;
  --focus: #4ADE80;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .25);
  --font: "Fira Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 15px/1.5 var(--font); min-height: 100vh;
}
a { color: var(--info); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .5rem; letter-spacing: -.01em; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; }
p { margin: 0 0 .75rem; }
code, .mono { font-family: var(--mono); font-size: .9em; }
.muted { color: var(--fg-muted); }
.dim { color: var(--fg-dim); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--brand); color: #052e16; padding: 8px 12px; border-radius: 6px; z-index: 50; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
.ico { width: 18px; height: 18px; flex: none; }

/* ---------- layout */
.app { display: grid; grid-template-columns: 248px 1fr; min-height: 100vh; }
.sidebar {
  background: #0B1222; border-right: 1px solid var(--border); padding: 18px 12px;
  display: flex; flex-direction: column; gap: 6px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 6px 10px 18px; color: var(--fg); }
.brand:hover { text-decoration: none; }
.brand-text { font-weight: 700; font-size: 1.1rem; letter-spacing: .01em; }
.logo { width: 30px; height: 30px; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav-link {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px;
  color: var(--fg-muted); cursor: pointer; border: 0; background: none; font: inherit; width: 100%; text-align: left;
  transition: background-color .15s ease, color .15s ease;
}
.nav-link:hover { background: var(--muted); color: var(--fg); text-decoration: none; }
.nav-link.active { background: rgba(22, 163, 74, .16); color: var(--fg); box-shadow: inset 3px 0 0 var(--brand); }
.sidebar-foot { margin-top: auto; border-top: 1px solid var(--border); padding-top: 10px; display: flex; flex-direction: column; gap: 2px; }
.whoami { padding: 8px 10px; font-size: .85rem; color: var(--fg); }
.whoami span { display: block; color: var(--fg-dim); font-size: .78rem; text-transform: capitalize; }
.inline-form { margin: 0; }
.content { min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 12px; padding: 14px 28px; border-bottom: 1px solid var(--border);
  background: rgba(15, 23, 42, .85); position: sticky; top: 0; backdrop-filter: blur(6px); z-index: 10;
}
.topbar-title { font-weight: 600; color: var(--fg-muted); }
main#main { padding: 24px 28px 48px; max-width: 1280px; width: 100%; outline: none; }
.menu-toggle { display: none; }
.auth-main { min-height: 100vh; display: grid; place-items: center; padding: 24px; }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; inset: 0 auto 0 0; width: 260px; transform: translateX(-100%);
    transition: transform .2s ease; z-index: 40; box-shadow: var(--shadow);
  }
  .sidebar.open { transform: none; }
  .menu-toggle { display: inline-flex; }
  main#main, .topbar { padding-left: 16px; padding-right: 16px; }
}

/* ---------- components */
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
}
.card + .card { margin-top: 16px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 1100px) { .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 760px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.page-head p { color: var(--fg-muted); margin: 4px 0 0; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-label { color: var(--fg-muted); font-size: .85rem; }
.stat-value { font-size: 1.9rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-sub { color: var(--fg-dim); font-size: .83rem; }
.stat.pass .stat-value { color: var(--pass); }
.stat.warn .stat-value { color: var(--warning); }
.stat.fail .stat-value { color: var(--fail); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 9px 14px; border-radius: 8px;
  border: 1px solid transparent; font: 600 .92rem/1 var(--font); cursor: pointer; min-height: 40px;
  transition: background-color .15s ease, border-color .15s ease, transform .05s ease;
  background: var(--brand); color: #04190c; text-decoration: none;
}
.btn:hover { background: #22C55E; text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .55; cursor: not-allowed; }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-ghost:hover { background: var(--muted); }
.btn-danger { background: var(--accent); color: #fff; }
.btn-danger:hover { background: #B91C1C; }
.btn-sm { padding: 6px 10px; min-height: 32px; font-size: .85rem; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field label, .label { font-weight: 600; font-size: .9rem; color: var(--fg); }
.hint { color: var(--fg-dim); font-size: .83rem; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=search], input[type=tel], select, textarea {
  width: 100%; background: #0B1222; color: var(--fg); border: 1px solid var(--border); border-radius: 8px;
  padding: 9px 11px; font: inherit; min-height: 40px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
textarea { min-height: 96px; resize: vertical; }
input:hover, select:hover, textarea:hover { border-color: #475569; }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: none; border-color: var(--focus); box-shadow: 0 0 0 3px rgba(74, 222, 128, .25); }
input[aria-invalid=true] { border-color: var(--fail); }
input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--brand); }
.check { display: flex; align-items: center; gap: 8px; margin: 6px 0; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 18px; }
.form-grid .wide { grid-column: 1 / -1; }
@media (max-width: 680px) { .form-grid { grid-template-columns: 1fr; } }
.errors { background: rgba(248, 113, 113, .1); border: 1px solid rgba(248, 113, 113, .45); color: #FECACA; padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; }
.errors ul { margin: 0; padding-left: 18px; }

.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 16px; }
.filters .field { margin: 0; min-width: 150px; flex: 1 1 150px; }
.filters .field.search { flex: 2 1 240px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: #0B1222; color: var(--fg-muted); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; }
tbody tr:hover { background: rgba(30, 41, 59, .6); }
tbody tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
th a { color: inherit; }
th a:hover { color: var(--fg); }

.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 999px;
  font-size: .78rem; font-weight: 600; border: 1px solid transparent; white-space: nowrap;
}
.badge .ico { width: 14px; height: 14px; }
.b-pass { background: rgba(74, 222, 128, .12); color: var(--pass); border-color: rgba(74, 222, 128, .35); }
.b-warning { background: rgba(251, 191, 36, .12); color: var(--warning); border-color: rgba(251, 191, 36, .35); }
.b-fail { background: rgba(248, 113, 113, .12); color: var(--fail); border-color: rgba(248, 113, 113, .4); }
.b-inconclusive { background: rgba(165, 180, 252, .12); color: var(--inconclusive); border-color: rgba(165, 180, 252, .35); }
.b-info { background: rgba(125, 211, 252, .12); color: var(--info); border-color: rgba(125, 211, 252, .35); }
.b-neutral { background: rgba(148, 163, 184, .12); color: var(--fg-muted); border-color: var(--border); }
.sev { text-transform: capitalize; }

.flash { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; border: 1px solid var(--border); background: var(--card); }
.flash-ok { border-color: rgba(74, 222, 128, .45); background: rgba(22, 163, 74, .12); }
.flash-error { border-color: rgba(248, 113, 113, .5); background: rgba(220, 38, 38, .12); }
.flash-info { border-color: rgba(125, 211, 252, .4); background: rgba(14, 165, 233, .08); }

.empty { text-align: center; padding: 40px 16px; color: var(--fg-muted); }
.empty h3 { color: var(--fg); }
.pager { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; flex-wrap: wrap; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 18px; overflow-x: auto; }
.tabs a { padding: 10px 14px; color: var(--fg-muted); border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs a[aria-current=page] { color: var(--fg); border-bottom-color: var(--brand); }
.tabs a:hover { color: var(--fg); text-decoration: none; }

.crumbs { color: var(--fg-dim); font-size: .85rem; margin-bottom: 6px; }
.crumbs a { color: var(--fg-muted); }

.finding { border: 1px solid var(--border); border-left-width: 4px; border-radius: 8px; padding: 12px 14px; margin-bottom: 10px; background: #0B1222; }
.finding.s-fail { border-left-color: var(--fail); }
.finding.s-warning { border-left-color: var(--warning); }
.finding.s-pass { border-left-color: var(--pass); }
.finding.s-inconclusive { border-left-color: var(--inconclusive); }
.finding.s-not_checked { border-left-color: var(--fg-dim); }
.finding-head { display: flex; gap: 10px; align-items: center; justify-content: space-between; flex-wrap: wrap; margin-bottom: 6px; }
.finding p { margin: 4px 0; }
.kv { display: grid; grid-template-columns: 180px 1fr; gap: 6px 14px; font-size: .92rem; }
.kv dt { color: var(--fg-muted); }
.kv dd { margin: 0; word-break: break-word; }
.record { font-family: var(--mono); font-size: .85rem; background: #0B1222; border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; word-break: break-all; white-space: pre-wrap; }
details summary { cursor: pointer; color: var(--fg-muted); padding: 4px 0; }
details summary:focus-visible { outline: 3px solid var(--focus); }

.chart { width: 100%; height: auto; display: block; }
.chart text { fill: var(--fg-muted); font-size: 11px; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: .85rem; color: var(--fg-muted); margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.bar-row { display: grid; grid-template-columns: 160px 1fr 60px; gap: 10px; align-items: center; margin-bottom: 8px; }
.bar-track { background: var(--muted); border-radius: 999px; height: 10px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 999px; }
@media (max-width: 600px) { .bar-row { grid-template-columns: 1fr; } }

.score { font-weight: 700; font-variant-numeric: tabular-nums; }
.score-ring { font-size: 2.4rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.kpi-strip { display: flex; gap: 6px; flex-wrap: wrap; }

.auth-card { width: 100%; max-width: 440px; }
.auth-card .brand-lg { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.auth-card .brand-lg .logo { width: 40px; height: 40px; }
.auth-card h1 { font-size: 1.4rem; }
.qr { background: #fff; padding: 10px; border-radius: 10px; width: 220px; height: 220px; display: block; margin: 8px 0 14px; }
.codes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; font-family: var(--mono); font-size: 1rem; background: #0B1222; border: 1px dashed var(--border); border-radius: 10px; padding: 14px; }
.codes span { padding: 6px 8px; background: var(--muted); border-radius: 6px; text-align: center; letter-spacing: .06em; }
.notice { display: flex; gap: 10px; background: rgba(251, 191, 36, .08); border: 1px solid rgba(251, 191, 36, .35); padding: 12px 14px; border-radius: 8px; margin: 14px 0; color: #FDE68A; }
.notice .ico { color: var(--warning); margin-top: 2px; }

.empty-inline { color: var(--fg-dim); font-style: italic; }
.progress { display: inline-flex; align-items: center; gap: 8px; color: var(--info); }
.spin { animation: spin 1.1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}
.danger-zone { border-color: rgba(248, 113, 113, .45); }
.sep { height: 1px; background: var(--border); margin: 18px 0; border: 0; }