:root {
  /* surfaces */
  --bg:        #0B0E14;
  --bg-raised: #12161F;
  --bg-panel:  #161B26;
  --bg-hover:  #1D2432;
  --border:    #232B3A;
  --border-hi: #32405A;

  /* text */
  --fg:        #E8ECF4;
  --fg-dim:    #8B96AB;
  --fg-faint:  #5A6478;

  /* brand + state (dog head, 4-state ladder) */
  --brand:     #9896E0;
  --ok:        #22C55E;
  --warn:      #F59E0B;
  --bad:       #EF4444;
  --off:       #6B7280;

  --radius:    14px;
  --radius-sm: 9px;
  --shadow:    0 8px 30px rgb(0 0 0 / 0.45);
  --bg-log:    #0A0D13;
}

/* Light theme.
 *
 * Not an inversion of the dark palette — a flat inversion turns a deep navy
 * ground into a saturated cream and makes the brand violet unreadable. The
 * neutrals keep a slight violet bias so they read as chosen rather than as
 * the browser's default grey, and the state colours are darkened until they
 * hold their contrast against white rather than glowing on it.
 *
 * Applied by [data-theme] only. The app writes that attribute from the
 * user's setting, resolving "auto" against prefers-color-scheme itself, so
 * there is exactly one place that decides which theme is showing. */
:root[data-theme="light"] {
  --bg:        #F7F7FB;
  --bg-raised: #FFFFFF;
  --bg-panel:  #FFFFFF;
  --bg-hover:  #EEEEF6;
  --border:    #E0E0EC;
  --border-hi: #C6C6DC;

  --fg:        #1A1B26;
  --fg-dim:    #5A5C72;
  --fg-faint:  #8A8CA3;

  /* Darkened for contrast on a light ground: the dark theme's #22C55E is
     2.2:1 on white and unreadable as text. */
  --brand:     #5A58C8;
  --ok:        #16A34A;
  --warn:      #B45309;
  --bad:       #DC2626;
  --off:       #6B7280;

  --shadow:    0 8px 24px rgb(26 27 38 / 0.10);
  /* A console keeps its recessed feel in light mode without going black. */
  --bg-log:    #F0F0F7;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: radial-gradient(1200px 700px at 20% -10%, #141B2B 0%, var(--bg) 55%);
  color: var(--fg);
  font: 15px/1.5 "Inter", "Cantarell", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

#app {
  max-width: 920px;
  margin: 0 auto;
  padding: 26px 26px 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 100vh;
}

/* ── Header ─────────────────────────────────────────────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 34px; height: 34px; filter: drop-shadow(0 2px 8px rgb(152 150 224 / .35)); }
.brand-text h1 { font-size: 20px; font-weight: 700; letter-spacing: .2px; }
.tagline { font-size: 12px; color: var(--fg-dim); }

.header-status { display: flex; align-items: center; gap: 8px; }
.engine-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--off);
  box-shadow: 0 0 8px rgb(107 114 128 / .6);
  transition: background .3s, box-shadow .3s;
}
.engine-dot.ok   { background: var(--ok);   box-shadow: 0 0 10px rgb(34 197 94 / .7); }
.engine-dot.warn { background: var(--warn); box-shadow: 0 0 10px rgb(245 158 11 / .7); }
.engine-dot.bad  { background: var(--bad);  box-shadow: 0 0 10px rgb(239 68 68 / .7); }
.engine-label { font-size: 12.5px; color: var(--fg-dim); }

/* ── Tabs ───────────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 5px;
  overflow-x: auto;
}
.tab {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--fg-dim);
  font: 600 13px/1 inherit;
  border-radius: 10px;
  padding: 9px 14px;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 7px;
  white-space: nowrap;
  transition: background .15s, color .15s, border-color .15s;
  position: relative;
}
.tab:hover { background: var(--bg-hover); color: var(--fg); }
.tab.active {
  background: linear-gradient(180deg, #232B40, #1B2233);
  border-color: var(--border-hi);
  color: var(--fg);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / .04);
}
.tab svg { opacity: .8; }
.tab-badge {
  min-width: 18px;
  font-size: 10.5px;
  font-weight: 700;
  text-align: center;
  padding: 1px 5px;
  border-radius: 999px;
  background: var(--bad);
  color: #fff;
  line-height: 1.5;
}
.tab-badge.quiet { background: var(--warn); }

.tab-panel { display: none; flex-direction: column; gap: 18px; }
.tab-panel.active { display: flex; }

/* ── Hero ───────────────────────────────────────────────────────── */
.hero {
  display: flex;
  align-items: center;
  gap: 22px;
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-raised));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  box-shadow: var(--shadow);
}
.shield {
  flex: 0 0 auto;
  width: 84px; height: 84px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgb(152 150 224 / .07);
  border: 1px solid rgb(152 150 224 / .18);
  transition: border-color .3s, background .3s;
}
@keyframes pulse {
  0%, 100% { transform: scale(1);   opacity: 1; }
  50%       { transform: scale(1.06); opacity: .85; }
}
.hero-copy h2 { font-size: 22px; font-weight: 700; }
.hero-copy p  { color: var(--fg-dim); margin: 4px 0 12px; }

.hero[data-state="protected"] .shield { border-color: rgb(34 197 94 / .35);  background: rgb(34 197 94 / .08); }
.hero[data-state="scanning"]  .shield { border-color: rgb(245 158 11 / .4);  background: rgb(245 158 11 / .09); }
.hero[data-state="threat"]    .shield { border-color: rgb(239 68 68 / .45);  background: rgb(239 68 68 / .1); }
.hero[data-state="paused"]    .shield { border-color: rgb(107 114 128 / .4); background: rgb(107 114 128 / .09); }
.hero[data-state="scanning"]  #shield-icon { animation: pulse 1.6s ease-in-out infinite; }

.pill {
  display: inline-block;
  font-size: 12px;
  color: var(--fg-dim);
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 11px;
  margin-right: 8px;
  white-space: nowrap;
}
.pill.stale { color: var(--warn); border-color: rgb(245 158 11 / .4); }

/* ── Actions ────────────────────────────────────────────────────── */
.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.btn {
  appearance: none;
  border: 1px solid var(--border-hi);
  background: var(--bg-hover);
  color: var(--fg);
  font: 600 13.5px/1 inherit;
  border-radius: var(--radius-sm);
  padding: 11px 16px;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: background .15s, border-color .15s, transform .05s;
}
.btn:hover  { background: #232C3E; border-color: #41507a; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary {
  background: linear-gradient(180deg, #5A58D6, #4543C4);
  border-color: #6a68e6;
}
.btn.primary:hover { background: linear-gradient(180deg, #6765e0, #4f4dd4); }
.btn.small { padding: 7px 12px; font-size: 12.5px; }
.btn.danger { border-color: rgb(239 68 68 / .5); }
.btn.danger:hover { background: rgb(239 68 68 / .15); border-color: var(--bad); }

/* ── Panels ─────────────────────────────────────────────────────── */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 10px;
  gap: 12px;
}
.panel-head h3 { font-size: 14px; font-weight: 700; letter-spacing: .3px; text-transform: uppercase; color: var(--fg-dim); }
.muted { color: var(--fg-dim); font-size: 13px; }
.empty { padding: 6px 0 2px; }
.hidden { display: none !important; }
.row-actions { display: flex; align-items: center; gap: 10px; }
.scan-target { font-family: ui-monospace, monospace; font-size: 12.5px; color: var(--fg-faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* scan progress */
.progress {
  height: 8px;
  border-radius: 999px;
  background: var(--bg-hover);
  overflow: hidden;
  margin-bottom: 10px;
}
.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #f59e0b, #fbbf24);
  border-radius: inherit;
  transition: width .4s ease;
}
.progress.indeterminate .progress-bar {
  width: 35%;
  animation: slide 1.3s ease-in-out infinite alternate;
}
@keyframes slide { from { margin-left: 0; } to { margin-left: 65%; } }

/* results */
.results { display: flex; flex-direction: column; gap: 6px; }
.result-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}
.result-row .sig { font-weight: 700; font-size: 13.5px; }
.result-row .path { color: var(--fg-dim); font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: ui-monospace, monospace; }
.result-row.clean { border-left: 3px solid var(--ok); }
.result-row.clean .sig { color: var(--ok); }
.result-row.infected { border-left: 3px solid var(--bad); }
.result-row.infected .sig { color: var(--bad); }

/* log */
.log {
  background: var(--bg-log);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font: 12px/1.6 ui-monospace, "JetBrains Mono", monospace;
  color: var(--fg-dim);
  max-height: 220px;
  overflow: auto;
  white-space: pre-wrap;
}
.log.ok   { color: #7fd79a; }
.log.fail { color: #f2a2a2; }

/* ── Inputs & switches ──────────────────────────────────────────── */
.input {
  appearance: none;
  background: var(--bg-raised);
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-sm);
  color: var(--fg);
  font: 13.5px/1.4 inherit;
  padding: 9px 12px;
  width: 100%;
}
.input:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgb(152 150 224 / .15); }
.input.mono { font-family: ui-monospace, "JetBrains Mono", monospace; font-size: 12.5px; }
textarea.input { resize: vertical; }
select.input { cursor: pointer; }

.form-row { display: grid; grid-template-columns: 1fr 200px auto; gap: 10px; }

.field { margin: 14px 0; }
.field > label { display: block; font-size: 13px; font-weight: 600; color: var(--fg-dim); margin-bottom: 6px; }

.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  padding: 4px 0;
}
.switch-row.setting { padding: 10px 0; border-bottom: 1px solid var(--border); }
.switch-row.setting:last-of-type { border-bottom: none; }
.switch-row strong { display: block; font-size: 14px; font-weight: 600; }
.switch-row small  { display: block; color: var(--fg-dim); font-size: 12px; margin-top: 2px; }
.switch-row input[type="checkbox"] { position: absolute; opacity: 0; pointer-events: none; }
.switch {
  flex: 0 0 auto;
  width: 40px; height: 22px;
  border-radius: 999px;
  background: var(--bg-hover);
  border: 1px solid var(--border-hi);
  position: relative;
  transition: background .2s, border-color .2s;
}
.switch::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--fg-dim);
  transition: transform .2s, background .2s;
}
.switch-row input:checked + .switch { background: rgb(90 88 214 / .55); border-color: #6a68e6; }
.switch-row input:checked + .switch::after { transform: translateX(18px); background: #fff; }

/* ── Quarantine ─────────────────────────────────────────────────── */
.qt-list { display: flex; flex-direction: column; gap: 6px; }
.qt-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-left: 3px solid var(--bad);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}
.qt-row.restored { border-left-color: var(--off); opacity: .75; }
.qt-row .qt-virus { font-weight: 700; font-size: 13px; color: var(--bad); white-space: nowrap; }
.qt-row.restored .qt-virus { color: var(--fg-dim); }
.qt-row .qt-path { font-family: ui-monospace, monospace; font-size: 12px; color: var(--fg-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qt-row .qt-meta { font-size: 11.5px; color: var(--fg-faint); white-space: nowrap; }
.qt-row .qt-actions { display: flex; gap: 6px; }

/* ── Realtime ───────────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 12px 0 6px;
}
.stat {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat-val { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-val.alarm { color: var(--bad); }
.stat-val.watching { color: var(--warn); }
.stat-val.calm { color: var(--ok); }
.stat-key { font-size: 11.5px; color: var(--fg-faint); text-transform: uppercase; letter-spacing: .4px; }

.kv {
  display: flex;
  gap: 12px;
  padding: 8px 0;
  border-top: 1px solid var(--border);
  font-size: 13px;
}
.kv-k { flex: 0 0 150px; color: var(--fg-faint); }
.kv-v { color: var(--fg-dim); font-family: ui-monospace, monospace; font-size: 12px; word-break: break-all; }

.watch-list { display: flex; flex-wrap: wrap; gap: 6px; }
.watch-chip {
  font-family: ui-monospace, monospace;
  font-size: 12px;
  color: var(--fg-dim);
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 11px;
}

/* ── Rootkit ────────────────────────────────────────────────────── */
.verdict {
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-bottom: 12px;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid;
}
.verdict.clean { background: rgb(34 197 94 / .08); border-color: rgb(34 197 94 / .35); color: #7fd79a; }
.verdict.dirty { background: rgb(239 68 68 / .08); border-color: rgb(239 68 68 / .4); color: #f2a2a2; }

.finding-list { display: flex; flex-direction: column; gap: 6px; }
.finding-row {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 12px;
  align-items: center;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}
.finding-row .sev {
  font-size: 10.5px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .5px;
  padding: 3px 9px; border-radius: 999px;
}
.sev.critical { background: rgb(239 68 68 / .15); color: var(--bad); }
.sev.warn     { background: rgb(245 158 11 / .15); color: var(--warn); }
.sev.info     { background: rgb(107 114 128 / .2);  color: var(--fg-dim); }
.finding-row .check { font-family: ui-monospace, monospace; font-size: 12px; color: var(--fg-dim); }
.finding-row .detail { font-size: 13px; color: var(--fg); word-break: break-all; }

/* ── Alerts ─────────────────────────────────────────────────────── */
.event-list { display: flex; flex-direction: column; gap: 4px; max-height: 520px; overflow-y: auto; }
.event-row {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  gap: 12px;
  align-items: center;
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
}
.event-row .ev-sev { font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; width: 64px; }
.ev-sev.critical { color: var(--bad); }
.ev-sev.warn     { color: var(--warn); }
.ev-sev.info     { color: var(--fg-faint); }
.event-row .ev-kind { font-family: ui-monospace, monospace; font-size: 11.5px; color: var(--fg-dim); width: 96px; }
.event-row .ev-msg { font-size: 13px; color: var(--fg); word-break: break-word; }
.event-row .ev-ts { font-size: 11.5px; color: var(--fg-faint); white-space: nowrap; font-variant-numeric: tabular-nums; }

/* footer */
.footer {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--fg-faint);
  padding-top: 4px;
}