/* shield — light control-plane console, Vercel/Cloudflare-grade.
   Refined neutrals, Inter, hairline borders + whisper shadows, iconified nav. */
:root {
  --canvas: #f7f8fa;
  --surface: #ffffff;
  --raised: #ffffff;
  --inset: #f4f5f7;
  --edge: #ebedf1;
  --edge-2: #e0e3e9;
  --edge-strong: #c8cdd6;

  --ink: #0b0d12;
  --ink-dim: #5a6573;
  --ink-faint: #98a0ad;

  --brand: #3b6ef5;
  --steel: #3b6ef5;
  --phosphor: #15a05a;
  --watch: #b5730b;
  --threat: #e0344a;

  --brand-soft: #eef3ff;
  --phosphor-soft: #e8f6ee;
  --watch-soft: #fbf2e2;
  --threat-soft: #fdecef;
  --steel-soft: rgba(59,110,245,.22);

  --sh-sm: 0 1px 2px rgba(11,13,18,.05);
  --sh-md: 0 6px 20px rgba(11,13,18,.08), 0 2px 6px rgba(11,13,18,.04);
  --sh-pop: 0 16px 40px rgba(11,13,18,.16);

  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s5: 24px; --s6: 32px; --s7: 48px;
  --r-sm: 8px; --r-md: 12px; --r-lg: 16px;
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html { font-size: 14.5px; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--canvas);
  line-height: 1.55; letter-spacing: -.011em; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono, .num { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: 0; }
svg { display: block; }

/* ---- shell ---- */
.app { display: grid; grid-template-columns: 256px 1fr; min-height: 100vh; }
.rail { background: var(--surface); border-right: 1px solid var(--edge); display: flex; flex-direction: column;
  padding: var(--s4) var(--s3); gap: 2px; position: sticky; top: 0; height: 100vh; }
.rail .brand { display: flex; align-items: center; gap: var(--s3); font-weight: 700; letter-spacing: -.03em;
  font-size: 1.12rem; padding: var(--s2) var(--s2) var(--s5); color: var(--ink); }
.rail .brand svg { width: 22px; height: 22px; color: var(--brand); }
.rail nav { display: flex; flex-direction: column; gap: 1px; }
.rail nav a { color: var(--ink-dim); padding: 9px var(--s3); border-radius: var(--r-sm); font-size: .92rem;
  font-weight: 500; display: flex; align-items: center; gap: 10px; transition: background .12s, color .12s; }
.rail nav a svg { width: 18px; height: 18px; flex: none; opacity: .7; }
.rail nav a:hover { background: var(--canvas); color: var(--ink); text-decoration: none; }
.rail nav a.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.rail nav a.active svg { opacity: 1; }
.rail .spacer { flex: 1; }
.rail .who { display: flex; align-items: center; gap: 10px; font-size: .85rem; color: var(--ink-dim);
  padding: 10px var(--s3); border-top: 1px solid var(--edge); margin-top: var(--s2); }
.rail .who .ava { width: 30px; height: 30px; border-radius: 50%; background: var(--brand); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: .85rem; flex: none; }
.rail .who b { color: var(--ink); font-weight: 600; display: block; line-height: 1.1; }
.rail .who a { font-size: .8rem; color: var(--ink-faint); }

.main { min-width: 0; display: flex; flex-direction: column; }
.topbar { display: flex; align-items: center; gap: var(--s3); padding: 0 var(--s6); height: 56px;
  border-bottom: 1px solid var(--edge); background: rgba(255,255,255,.72);
  position: sticky; top: 0; z-index: 5; backdrop-filter: saturate(180%) blur(12px); }
.topbar h1 { font-size: 1.05rem; font-weight: 650; margin: 0; letter-spacing: -.02em; }
.topbar .grow { flex: 1; }
.content { padding: var(--s6); max-width: 1200px; width: 100%; }

h2 { font-size: 1.02rem; font-weight: 650; margin: var(--s6) 0 var(--s3); letter-spacing: -.02em; }
h2:first-child { margin-top: 0; }
.muted { color: var(--ink-dim); } .faint { color: var(--ink-faint); }
.eyebrow { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-faint); font-weight: 700; }

/* ---- page header ---- */
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--s4); margin-bottom: var(--s5); flex-wrap: wrap; }
.page-head .title { font-size: 1.45rem; font-weight: 700; letter-spacing: -.03em; line-height: 1.15; }
.page-head .sub { color: var(--ink-dim); font-size: .92rem; margin-top: 5px; max-width: 66ch; }

/* ---- cards ---- */
.card { background: var(--surface); border: 1px solid var(--edge); border-radius: var(--r-md);
  padding: var(--s5); box-shadow: var(--sh-sm); }
.cards { display: grid; gap: var(--s4); }
.grid-2 { grid-template-columns: repeat(2,1fr); } .grid-3 { grid-template-columns: repeat(3,1fr); } .grid-4 { grid-template-columns: repeat(4,1fr); }
.card + .card { margin-top: var(--s4); }
.list-card { padding: 0; overflow: hidden; }
.list-card th, .list-card td { padding-left: var(--s5); padding-right: var(--s5); }
@media (max-width: 940px){ .grid-2,.grid-3,.grid-4 { grid-template-columns: 1fr; } .app { grid-template-columns: 1fr; } .rail { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; } .rail .spacer,.rail .who,.rail .brand{ } }

/* ---- KPI ---- */
.kpi { display: flex; flex-direction: column; gap: 6px; }
.kpi .label { font-size: .76rem; color: var(--ink-faint); text-transform: uppercase; letter-spacing: .06em; font-weight: 600; }
.kpi .value { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 1.85rem; font-weight: 650; line-height: 1; letter-spacing: -.03em; }
.kpi .delta { font-size: .8rem; } .kpi .delta.up { color: var(--phosphor); } .kpi .delta.down { color: var(--threat); }

/* ---- status pill ---- */
.pulse { display: inline-flex; align-items: center; gap: 6px; font-size: .8rem; font-weight: 600;
  padding: 3px 10px; border-radius: 999px; border: 1px solid var(--edge-2); background: var(--surface); }
.pulse .ring { width: 7px; height: 7px; border-radius: 50%; }
.pulse.ok { color: var(--phosphor); background: var(--phosphor-soft); border-color: #bfe6cf; } .pulse.ok .ring { background: var(--phosphor); }
.pulse.watch { color: var(--watch); background: var(--watch-soft); border-color: #efdcb4; } .pulse.watch .ring { background: var(--watch); }
.pulse.threat { color: var(--threat); background: var(--threat-soft); border-color: #f6c4cd; } .pulse.threat .ring { background: var(--threat); animation: alarm 1.2s ease-in-out infinite; }
.pulse.off { color: var(--ink-faint); background: var(--inset); } .pulse.off .ring { background: var(--ink-faint); }
@keyframes alarm { 0%,100%{ box-shadow:0 0 0 0 var(--threat-soft);} 50%{ box-shadow:0 0 0 4px var(--threat-soft);} }
@media (prefers-reduced-motion: reduce){ .pulse .ring { animation: none !important; } }

/* ---- badges ---- */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 9px; border-radius: 999px;
  font-size: .74rem; font-weight: 600; border: 1px solid var(--edge-2); color: var(--ink-dim); background: var(--inset); }
.badge.ok { color: var(--phosphor); border-color: #bfe6cf; background: var(--phosphor-soft); }
.badge.watch { color: var(--watch); border-color: #efdcb4; background: var(--watch-soft); }
.badge.bad { color: var(--threat); border-color: #f6c4cd; background: var(--threat-soft); }

/* ---- tables ---- */
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th { text-align: left; font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-faint);
  font-weight: 600; padding: 10px var(--s3); border-bottom: 1px solid var(--edge); background: var(--canvas); }
td { padding: 12px var(--s3); border-bottom: 1px solid var(--edge); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tbody tr { transition: background .1s; } tbody tr:hover td { background: #fbfbfc; }
td code, td .num { font-size: .85rem; color: var(--ink-dim); }

/* ---- per-domain tab rail ---- */
.domain-layout { display: grid; grid-template-columns: 212px 1fr; gap: var(--s5); align-items: start; }
.tabrail { display: flex; flex-direction: column; gap: 1px; position: sticky; top: 76px; }
.tabrail a { color: var(--ink-dim); padding: 9px var(--s3); border-radius: var(--r-sm); font-size: .92rem; font-weight: 500; transition: background .12s,color .12s; }
.tabrail a:hover { background: var(--surface); color: var(--ink); text-decoration: none; box-shadow: var(--sh-sm); }
.tabrail a.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
#domain-panel { transition: opacity .12s; }
@media (max-width: 940px){ .domain-layout { grid-template-columns: 1fr; } .tabrail { flex-direction: row; flex-wrap: wrap; position: static; } }

/* ---- buttons ---- */
.btn { display: inline-flex; align-items: center; gap: var(--s2); cursor: pointer; font: inherit; font-size: .9rem;
  font-weight: 600; padding: 8px var(--s4); border-radius: var(--r-sm); border: 1px solid transparent;
  background: var(--brand); color: #fff; box-shadow: var(--sh-sm); transition: filter .12s, box-shadow .12s, transform .04s; }
.btn:hover { filter: brightness(1.06); box-shadow: var(--sh-md); }
.btn:active { transform: translateY(1px); }
.btn.secondary { background: var(--surface); color: var(--ink); border-color: var(--edge-2); }
.btn.secondary:hover { background: var(--canvas); filter: none; box-shadow: var(--sh-sm); }
.btn.danger { background: var(--surface); color: var(--threat); border-color: #f0b9c2; }
.btn.danger:hover { background: var(--threat-soft); filter: none; }
.btn.sm { padding: 4px 11px; font-size: .82rem; }
.actions { display: flex; gap: var(--s3); flex-wrap: wrap; align-items: center; }

/* ---- forms ---- */
label { display: block; font-size: .84rem; font-weight: 600; color: var(--ink); margin-bottom: 5px; }
input[type=text],input[type=password],input[type=number],select,textarea {
  width: 100%; padding: 9px var(--s3); font: inherit; font-size: .9rem; color: var(--ink); background: var(--surface);
  border: 1px solid var(--edge-2); border-radius: var(--r-sm); transition: border-color .12s, box-shadow .12s; }
input::placeholder, textarea::placeholder { color: var(--ink-faint); }
input:focus,select:focus,textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px var(--steel-soft); }
input[readonly] { background: var(--inset); color: var(--ink-dim); }
textarea { min-height: 92px; font-family: var(--mono); font-size: .85rem; }
.row { display: grid; grid-template-columns: repeat(auto-fit,minmax(200px,1fr)); gap: var(--s4); }
.field { display: flex; flex-direction: column; }
.check { display: flex; align-items: center; gap: var(--s2); }
.check input { width: 16px; height: 16px; accent-color: var(--brand); } .check label { margin: 0; font-weight: 500; color: var(--ink); }
.grid { display: grid; gap: var(--s4); }
.hint { font-size: .8rem; color: var(--ink-faint); margin-top: 5px; font-weight: 400; }
.sub-h { font-size: .95rem; font-weight: 650; margin: 0 0 var(--s3); letter-spacing: -.01em; }
.divider { height: 1px; background: var(--edge); margin: var(--s4) 0; }

/* ---- toggle switch ---- */
.switch { position: relative; display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-weight: 500; color: var(--ink); font-size: .9rem; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch .track { width: 38px; height: 22px; border-radius: 999px; background: var(--edge-2); position: relative; transition: background .15s; flex: none; }
.switch .track::after { content: ""; position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: var(--sh-sm); transition: transform .15s; }
.switch input:checked + .track { background: var(--brand); }
.switch input:checked + .track::after { transform: translateX(16px); }
.switch input:focus-visible + .track { box-shadow: 0 0 0 3px var(--steel-soft); }

/* ---- flash ---- */
.flash { padding: var(--s3) var(--s4); border-radius: var(--r-sm); margin-bottom: var(--s4); font-size: .9rem; border: 1px solid var(--edge-2); }
.flash.ok { background: var(--phosphor-soft); border-color: #bfe6cf; color: var(--phosphor); }
.flash.bad { background: var(--threat-soft); border-color: #f6c4cd; color: var(--threat); }

/* ---- login ---- */
.center { min-height: 100vh; display: grid; place-items: center; padding: var(--s4);
  background: radial-gradient(130% 120% at 50% -10%, #eaf0fb 0%, var(--canvas) 55%); }
.login { width: min(23rem, 94vw); box-shadow: var(--sh-md); }
.login h1 { display: flex; align-items: center; gap: 10px; margin: 0 0 var(--s2); font-size: 1.5rem; letter-spacing: -.03em; }
.login h1 svg { width: 26px; height: 26px; color: var(--brand); }

a:focus-visible, .btn:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.right { text-align: right; } .nowrap { white-space: nowrap; }
.empty { color: var(--ink-faint); text-align: center; padding: var(--s7) var(--s4); }