/* Edge Guardian dashboard — "static instrument" theme.
   Tokens are canonical (DESIGN.md); color is signal, never decoration. */

/* ---------- self-hosted fonts (no CDN) ---------- */
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 600 700; /* variable subset covers the display range */
  font-display: swap;
  src: url("/static/fonts/spacegrotesk.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400 500; /* variable subset */
  font-display: swap;
  src: url("/static/fonts/plexsans.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/static/fonts/plexmono-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/static/fonts/plexmono-500.woff2") format("woff2");
}

/* ---------- tokens ---------- */
:root {
  --paper: #f6f7f9;
  --panel: #ffffff;
  --line: #e2e5ea;
  --ink: #16181d;
  --muted: #5c636e;
  --alert: #d7402b;
  --alert-rgb: 215 64 43;

  --radius: 8px;
  --radius-sm: 6px;
  --gap: 16px;
  --maxw: 1120px;

  --shadow-card: 0 1px 2px rgb(22 24 29 / 0.04);
  --ring: 0 0 0 2px var(--paper), 0 0 0 4px var(--alert);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

[data-theme="dark"] {
  --paper: #16181d;
  --panel: #1d2026;
  --line: #2a2e37;
  --ink: #e7e9ec;
  --muted: #9aa1ac;
  --shadow-card: 0 1px 2px rgb(0 0 0 / 0.3);
  --ring: 0 0 0 2px var(--paper), 0 0 0 4px var(--alert);
}

/* ---------- reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  font-feature-settings: "tnum" 1, "ss01" 1;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3 { margin: 0; font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

:focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-radius: var(--radius-sm);
}

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--gap);
  height: 56px;
  padding: 0 clamp(16px, 4vw, 40px);
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.topbar__left { display: flex; align-items: center; gap: clamp(16px, 4vw, 36px); min-width: 0; }
.topbar__right { display: flex; align-items: center; gap: 12px; }

.wordmark { display: inline-flex; align-items: center; gap: 9px; }
.wordmark__mark {
  font-size: 18px; line-height: 1; color: var(--ink);
  transform: rotate(0deg);
}
.wordmark__text {
  font-family: var(--font-display); font-weight: 700; font-size: 16px;
  letter-spacing: -0.02em;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav__link {
  padding: 6px 10px; border-radius: var(--radius-sm);
  color: var(--muted); font-weight: 500; font-size: 13px;
  transition: color 0.12s ease, background 0.12s ease;
}
.nav__link:hover { color: var(--ink); background: var(--paper); }
.nav__link.is-active { color: var(--ink); background: var(--paper); }

.host { color: var(--muted); font-family: var(--font-mono); font-size: 12px; }

.iconbtn {
  display: inline-grid; place-items: center;
  width: 32px; height: 32px;
  background: transparent; border: 1px solid transparent; border-radius: var(--radius-sm);
  color: var(--muted);
  transition: color 0.12s ease, border-color 0.12s ease, background 0.12s ease;
}
.iconbtn:hover { color: var(--ink); border-color: var(--line); background: var(--paper); }
.iconbtn__glyph { font-size: 15px; line-height: 1; }
.logout-form { display: inline; margin: 0; }

/* ---------- state chip ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 4px 10px 4px 9px;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--panel);
  font-size: 12px; font-weight: 500; color: var(--muted);
  white-space: nowrap;
}
.chip__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.chip[data-state="alert"] {
  border-color: rgb(var(--alert-rgb) / 0.4);
  background: rgb(var(--alert-rgb) / 0.08);
  color: var(--alert);
}
.chip[data-state="alert"] .chip__dot {
  background: var(--alert);
  box-shadow: 0 0 0 0 rgb(var(--alert-rgb) / 0.5);
  animation: pulse 1.8s ease-out infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgb(var(--alert-rgb) / 0.5); }
  70% { box-shadow: 0 0 0 6px rgb(var(--alert-rgb) / 0); }
  100% { box-shadow: 0 0 0 0 rgb(var(--alert-rgb) / 0); }
}

/* ---------- sentinel line ---------- */
.sentinel-wrap {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  padding: 10px clamp(16px, 4vw, 40px);
}
.sentinel {
  position: relative;
  display: block;
  height: 46px;
}
.sentinel--placeholder { height: 46px; }
.sentinel__svg { display: block; width: 100%; height: 46px; color: var(--alert); }
.sentinel__base { stroke: var(--line); stroke-width: 1; }
.sentinel__tick--solid { fill: var(--alert); transition: opacity 0.3s ease, height 0.3s ease, y 0.3s ease; }
.sentinel__tick--hollow {
  fill: none; stroke: var(--alert); stroke-width: 1.4;
  transition: opacity 0.3s ease, height 0.3s ease, y 0.3s ease;
}
.sentinel .chip {
  position: absolute; top: -2px; right: 0;
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  backdrop-filter: saturate(1.2);
}

/* ---------- shell / layout ---------- */
.shell {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(20px, 3vw, 32px) clamp(16px, 4vw, 40px) 64px;
  display: flex; flex-direction: column; gap: 24px;
}

/* staggered entrance on first paint */
@media (prefers-reduced-motion: no-preference) {
  .readouts-section, .panel { animation: rise 0.4s ease both; }
  .panel { animation-delay: 0.06s; }
}
@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* ---------- readout cards ---------- */
.readouts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 14px 16px 16px;
  min-height: 116px;
  display: flex; flex-direction: column; gap: 8px;
}
.card--hot { border-color: rgb(var(--alert-rgb) / 0.35); background: rgb(var(--alert-rgb) / 0.04); }
.card__label {
  font-size: 11px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted);
}
.card__value {
  font-family: var(--font-display); font-weight: 700;
  font-size: 36px; line-height: 1; letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.card--hot .card__value { color: var(--alert); }
.card__value--sm { font-size: 18px; }
.card__value--empty { font-size: 15px; color: var(--muted); font-family: var(--font-body); font-weight: 400; }

.spark { width: 100%; height: 24px; margin-top: auto; }
.spark__line { stroke: var(--muted); stroke-width: 1.5; vector-effect: non-scaling-stroke; stroke-linejoin: round; stroke-linecap: round; }
.card--hot .spark__line { stroke: var(--alert); }
.spark__flat { stroke: var(--line); stroke-width: 1.5; vector-effect: non-scaling-stroke; }

/* ranked bars (top origin / by type) */
.ranks { display: flex; flex-direction: column; gap: 5px; margin-top: 2px; }
.ranks--type { margin-top: 0; }
.rank { position: relative; display: flex; align-items: center; gap: 8px; padding: 3px 6px; border-radius: var(--radius-sm); overflow: hidden; }
.rank__bar {
  position: absolute; inset: 0 auto 0 0;
  background: rgb(var(--alert-rgb) / 0.12);
  border-radius: var(--radius-sm);
  z-index: 0;
}
.rank__bar--neutral { background: color-mix(in srgb, var(--muted) 14%, transparent); }
.rank__label { position: relative; z-index: 1; font-size: 12px; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rank__pct { position: relative; z-index: 1; margin-left: auto; font-size: 12px; color: var(--muted); }

/* ---------- panels ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.panel__head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.panel__title { font-size: 15px; display: inline-flex; align-items: baseline; gap: 8px; }
.count { color: var(--muted); font-size: 13px; font-weight: 500; }
.panel__hint { color: var(--muted); font-size: 12px; }
.panel__hint[data-paused]::after { content: " · paused"; color: var(--alert); font-weight: 500; }
.link { color: var(--muted); font-size: 13px; font-weight: 500; }
.link:hover { color: var(--ink); }

/* ---------- feed ---------- */
.feed { padding: 4px 0; }
.feed--full { padding: 4px 0 8px; }
.feed__list { list-style: none; margin: 0; padding: 0; }
.feed__row {
  display: grid;
  grid-template-columns: 76px minmax(110px, 1fr) 92px minmax(90px, 1fr) auto;
  align-items: center; gap: 12px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.feed__row:last-child { border-bottom: 0; }
.feed__row--dry { opacity: 0.72; }
.feed__time { color: var(--muted); font-size: 12px; }
.feed__ip { color: var(--ink); }
.feed__detector { color: var(--muted); }
.feed__origin { color: var(--muted); font-size: 12px; }

.tag {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 500; line-height: 1.4; white-space: nowrap;
  border: 1px solid var(--line); color: var(--muted); background: var(--paper);
}
.tag--banned { color: var(--alert); border-color: rgb(var(--alert-rgb) / 0.35); background: rgb(var(--alert-rgb) / 0.07); }
.tag--dry { color: var(--muted); border-style: dashed; }
.tag--detector { font-family: var(--font-mono); }

/* ---------- ledger ---------- */
.panel__head--ledger { align-items: center; }
.filters { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.input, .select {
  height: 34px; padding: 0 10px;
  background: var(--panel); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-size: 13px;
}
.input { width: 220px; max-width: 52vw; }
.input::placeholder { color: var(--muted); }
.select { padding-right: 26px; }

.btn {
  height: 30px; padding: 0 12px;
  background: var(--panel); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 500;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}
.btn:hover { background: var(--paper); border-color: var(--muted); }
.btn--primary {
  background: var(--ink); color: var(--paper); border-color: var(--ink);
  height: 38px; width: 100%; font-size: 14px;
}
.btn--primary:hover { background: #000; }
[data-theme="dark"] .btn--primary { background: var(--ink); color: var(--panel); }
.btn--danger { color: var(--alert); border-color: rgb(var(--alert-rgb) / 0.3); }
.btn--danger:hover { background: rgb(var(--alert-rgb) / 0.08); border-color: var(--alert); color: var(--alert); }

.table-wrap { overflow-x: auto; }
.ledger { width: 100%; border-collapse: collapse; font-size: 13px; }
.ledger thead th {
  text-align: left; padding: 9px 16px;
  font-family: var(--font-body); font-weight: 500; font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: var(--panel);
}
.ledger td { padding: 9px 16px; border-bottom: 1px solid var(--line); }
.ledger__row { transition: background 0.12s ease; }
.ledger__row:hover { background: color-mix(in srgb, var(--paper) 60%, transparent); }
.ledger__row:last-child td { border-bottom: 0; }
.ledger__act { text-align: right; }
.ledger__expires.is-expired { color: var(--alert); }
.ledger__reason { max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); }
.ledger__row--gone { animation: collapse 0.2s ease forwards; }
.ledger__row--error td { color: var(--alert); font-family: var(--font-body); }
@keyframes collapse { to { opacity: 0; } }

/* ---------- detectors ---------- */
.detectors { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); padding: 16px; }
.detcard { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; background: var(--panel); display: flex; flex-direction: column; gap: 9px; }
.detcard__head { display: flex; align-items: baseline; justify-content: space-between; }
.detcard__name { font-size: 15px; font-weight: 500; }
.detcard__share { color: var(--muted); font-size: 13px; }
.detcard__desc { margin: 0; color: var(--muted); font-size: 13px; }
.detcard__bar { height: 4px; background: var(--line); border-radius: 999px; overflow: hidden; }
.detcard__fill { height: 100%; background: rgb(var(--alert-rgb) / 0.55); border-radius: 999px; transition: width 0.3s ease; }
.detcard__meta { font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }

/* ---------- empty / states ---------- */
.empty { padding: 40px 16px; text-align: center; }
.empty__title { margin: 0 0 4px; font-family: var(--font-display); font-weight: 600; font-size: 16px; color: var(--ink); }
.empty__hint { margin: 0; color: var(--muted); font-size: 13px; }

/* ---------- login ---------- */
.login-body { display: grid; place-items: center; min-height: 100vh; padding: 24px; }
.login { width: 100%; max-width: 380px; }
.login__card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow-card);
  padding: 28px 28px 22px;
  display: flex; flex-direction: column; gap: 14px;
}
.login__brand { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-display); font-weight: 700; font-size: 18px; }
.login__lede { margin: 0 0 2px; color: var(--muted); font-size: 13px; }
.login__error { margin: 0; color: var(--alert); font-size: 13px; font-weight: 500; }
.login__form { display: flex; flex-direction: column; gap: 12px; margin-top: 4px; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field__label { font-size: 12px; font-weight: 500; color: var(--muted); }
.login__form .input { width: 100%; height: 38px; }
.login__foot { margin: 6px 0 0; color: var(--muted); font-size: 12px; text-align: center; font-family: var(--font-mono); }

/* a hairline of alert at the very top edge under attack — peripheral, not loud */
body[data-state="alert"] .topbar { box-shadow: inset 0 2px 0 0 var(--alert); }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .readouts { grid-template-columns: repeat(2, 1fr); }
  .detectors { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .nav { display: none; }
  .readouts { grid-template-columns: 1fr 1fr; }
  .feed__row {
    grid-template-columns: 64px 1fr auto;
    grid-template-areas: "time ip tag" "det origin origin";
    row-gap: 2px;
  }
  .feed__time { grid-area: time; }
  .feed__ip { grid-area: ip; }
  .feed__detector { grid-area: det; }
  .feed__origin { grid-area: origin; }
  .feed__row .tag { grid-area: tag; justify-self: end; }

  /* ledger folds to stacked cards */
  .ledger thead { display: none; }
  .ledger, .ledger tbody, .ledger tr, .ledger td { display: block; width: 100%; }
  .ledger__row {
    border: 1px solid var(--line); border-radius: var(--radius);
    margin: 0 16px 12px; padding: 6px 0;
  }
  .ledger__row:first-child { margin-top: 4px; }
  .ledger td { border: 0; display: flex; justify-content: space-between; gap: 16px; padding: 5px 14px; }
  .ledger td::before {
    content: attr(data-label);
    font-family: var(--font-body); font-size: 11px; letter-spacing: 0.05em;
    text-transform: uppercase; color: var(--muted);
  }
  .ledger__act { text-align: left; }
  .table-wrap { padding-top: 8px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ── Site health (/sites + Overview readout) ──────────────────────────────
   Color = signal: Healthy reads neutral (muted), Degraded/Down use --alert. */
.sites { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); padding: 16px; }
.sitecard { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; background: var(--panel); display: flex; flex-direction: column; gap: 11px; }
.sitecard.is-degraded { border-color: rgb(var(--alert-rgb) / 0.4); }
.sitecard.is-down { border-color: rgb(var(--alert-rgb) / 0.55); background: rgb(var(--alert-rgb) / 0.05); }
.sitecard__head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.sitecard__host { font-size: 14px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sitecard__status { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500; color: var(--muted); white-space: nowrap; }
.sitecard__dot { font-size: 10px; line-height: 1; }
.sitecard__status.is-healthy .sitecard__dot { color: var(--muted); }
.sitecard__status.is-degraded { color: var(--alert); }
.sitecard__status.is-down { color: var(--alert); }
.sitecard__status.is-idle { color: var(--muted); }
.sitecard__spark { height: 26px; }
.sitecard__spark svg { width: 100%; height: 100%; display: block; }
.sitecard__spark polyline { fill: none; stroke: var(--muted); stroke-width: 1.5; vector-effect: non-scaling-stroke; stroke-linejoin: round; stroke-linecap: round; }
.sitecard.is-degraded .sitecard__spark polyline, .sitecard.is-down .sitecard__spark polyline { stroke: var(--alert); }
.sitecard__flat { height: 1px; margin-top: 12px; background: var(--line); }
.sitecard__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px 16px; }
.kv { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.kv__k { font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.kv__v { font-size: 13px; color: var(--ink); }

/* Overview "Site health" banner */
.sitebanner { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 0 16px 16px; padding: 12px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); text-decoration: none; color: inherit; transition: border-color 0.2s ease; }
.sitebanner:hover { border-color: var(--muted); }
.sitebanner.is-degraded, .sitebanner.is-down { border-color: rgb(var(--alert-rgb) / 0.45); background: rgb(var(--alert-rgb) / 0.05); }
.sitebanner__main { display: flex; align-items: baseline; gap: 10px; }
.sitebanner__label { font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.sitebanner__state { font-size: 15px; font-weight: 500; color: var(--ink); }
.sitebanner.is-degraded .sitebanner__state, .sitebanner.is-down .sitebanner__state { color: var(--alert); }
.sitebanner__meta { display: flex; gap: 14px; font-size: 12px; color: var(--muted); }

@media (max-width: 640px) { .sites { grid-template-columns: 1fr; } }