:root {
  /* substrate: dark (default) */
  --bg: #0a0a0a;
  --line: #262626;
  --line-soft: #1a1a1a;
  --ink: #eaeaea;
  --ink-dim: #8a8a8a;
  --ink-faint: #5c5c5c;
  --scanline: rgba(255,255,255,0.018);
  --on-accent: #0a0a0a;
  --live: #4af626;
  /* accent: red (default) */
  --accent: #e61919;
  --accent-dim: #7a2222;
  --swatch-red: #e61919;
  --swatch-amber: #e6a319;
  --swatch-cyan: #19c9e6;
  --swatch-green: #39e65c;
  --swatch-blue: #3b82e6;
  --font-display: "Archivo Black", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
  /* text size + density: normal (default) */
  --scale: 1;
  --density: 1;
}

:root[data-fontsize="small"] { --scale: 0.9; }
:root[data-fontsize="large"] { --scale: 1.15; }
:root[data-density="compact"] { --density: 0.6; }
:root[data-density="spacious"] { --density: 1.5; }

:root[data-theme="light"] {
  --bg: #f2f1ec;
  --line: #d9d6cd;
  --line-soft: #e8e6df;
  --ink: #131210;
  --ink-dim: #5c584f;
  --ink-faint: #8a8577;
  --scanline: rgba(0,0,0,0.025);
  --on-accent: #ffffff;
}

:root[data-accent="red"]   { --accent: #e61919; --accent-dim: #7a2222; }
:root[data-accent="amber"] { --accent: #e6a319; --accent-dim: #7a5a1f; }
:root[data-accent="cyan"]  { --accent: #19c9e6; --accent-dim: #1f6570; }
:root[data-accent="green"] { --accent: #39e65c; --accent-dim: #2a7a3d; }
:root[data-accent="blue"]  { --accent: #3b82e6; --accent-dim: #244a7a; }

:root[data-theme="light"][data-accent="red"]   { --accent: #b91c1c; --accent-dim: #a3504a; }
:root[data-theme="light"][data-accent="amber"] { --accent: #8a5a00; --accent-dim: #8a6a3a; }
:root[data-theme="light"][data-accent="cyan"]  { --accent: #0f7c8c; --accent-dim: #3a7a82; }
:root[data-theme="light"][data-accent="green"] { --accent: #1f7a34; --accent-dim: #3a7a4a; }
:root[data-theme="light"][data-accent="blue"]  { --accent: #1d4fa3; --accent-dim: #3a5a8a; }

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: calc(12.5px * var(--scale));
  position: relative;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    var(--scanline) 0px,
    var(--scanline) 1px,
    transparent 1px,
    transparent 3px
  );
}
a { color: var(--ink); }
button { font-family: inherit; }
table { border-collapse: collapse; width: 100%; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.uc { text-transform: uppercase; letter-spacing: 0.06em; }

button:focus-visible, [role="option"]:focus-visible, a:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

.shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 232px 1fr;
  gap: 1px;
  background: var(--line);
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  padding: 18px 0 18px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 4px;
}
.brand-mark {
  width: 26px; height: 26px;
  background: var(--accent);
  color: var(--on-accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: calc(11px * var(--scale));
  flex-shrink: 0;
}
.brand-text { display: flex; flex-direction: column; gap: 3px; }
.brand-name {
  font-family: var(--font-display);
  font-size: calc(13.5px * var(--scale));
  letter-spacing: -0.01em;
}
.brand-tag {
  display: flex; align-items: center; gap: 5px;
  font-size: calc(9px * var(--scale)); letter-spacing: 0.08em;
  color: var(--live);
  text-transform: uppercase;
}

.status-dot {
  position: relative;
  display: inline-block;
  width: 5px; height: 5px;
  background: currentColor;
}
.status-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  background: currentColor;
  opacity: 0.4;
  animation: dot-pulse 2s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%, 100% { transform: scale(0.5); opacity: 0.4; }
  50% { transform: scale(1.8); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .status-dot::after { animation: none; opacity: 0; }
}

.nav {
  display: flex; flex-direction: column;
  margin-top: 6px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: calc(10px * var(--density)) 16px;
  border-left: 2px solid transparent;
  color: var(--ink-dim);
  font-size: calc(11px * var(--scale));
  font-weight: 500;
  text-decoration: none;
}
.nav-item svg { flex-shrink: 0; stroke: var(--ink-faint); }
.nav-item.active {
  color: var(--ink);
  border-left: 2px solid var(--accent);
  background: var(--line-soft);
}
.nav-item.active svg { stroke: var(--accent); }
.nav-spacer { flex-grow: 1; }
.nav-item.foot {
  border-top: 1px solid var(--line);
  margin-top: 6px;
  padding-top: 14px;
}

/* Main */
.main {
  background: var(--bg);
  padding: calc(22px * var(--density)) 28px calc(40px * var(--density));
  display: flex;
  flex-direction: column;
  gap: calc(22px * var(--density));
}

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 14px;
  padding-bottom: calc(16px * var(--density));
  border-bottom: 1px solid var(--line);
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
h1 {
  font-family: var(--font-display);
  font-size: calc(24px * var(--scale));
  margin: 0;
  letter-spacing: -0.01em;
}

/* Custom dropdown */
.dropdown { position: relative; }
.dropdown-trigger {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: calc(11px * var(--scale));
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
}
.dropdown-trigger:hover { border-color: var(--ink-faint); }
.dropdown-trigger[aria-expanded="true"] { border-color: var(--accent); }
.dd-caret { color: var(--ink-faint); font-size: calc(10px * var(--scale)); }
.dropdown-list {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  list-style: none;
  margin: 0; padding: 0;
  z-index: 20;
}
.dropdown-list[hidden] { display: none; }
.dropdown-list li {
  padding: 8px 12px;
  font-size: calc(11px * var(--scale));
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
  border-bottom: 1px solid var(--line);
}
.dropdown-list li:last-child { border-bottom: none; }
.dropdown-list li:hover,
.dropdown-list li:focus-visible {
  background: var(--ink);
  color: var(--bg);
  outline: none;
}
.dropdown-list li.selected {
  color: var(--accent);
}
.dropdown-list li.selected:hover { color: var(--bg); }

.icon-btn {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--ink-dim);
  cursor: pointer;
  padding: 0;
}
.icon-btn svg { stroke: currentColor; }
.icon-btn:hover { border-color: var(--ink-faint); color: var(--ink); }
.icon-btn[aria-expanded="true"] { border-color: var(--accent); color: var(--accent); }

.settings-panel {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  width: 260px;
  background: var(--bg);
  border: 1px solid var(--line);
  z-index: 20;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.settings-panel[hidden] { display: none; }
.settings-row { display: flex; flex-direction: column; gap: 8px; }
.settings-label {
  font-size: calc(9.5px * var(--scale)); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-faint);
}
.toggle-group { display: flex; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.toggle-btn {
  flex: 1;
  background: var(--bg);
  color: var(--ink-dim);
  border: none;
  padding: 7px 0;
  font-family: var(--font-mono);
  font-size: calc(10.5px * var(--scale));
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
}
.toggle-btn.active { background: var(--ink); color: var(--bg); }
.swatch-row { display: flex; gap: 8px; }
.swatch {
  width: 22px; height: 22px;
  border: 1px solid var(--line);
  cursor: pointer;
  padding: 0;
}
.swatch.active { outline: 2px solid var(--ink); outline-offset: 2px; }

.topbar-right { display: flex; align-items: center; gap: 16px; }
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  padding: 9px 14px;
  font-family: var(--font-mono);
  font-size: calc(11px * var(--scale));
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
}
.user-chip {
  display: flex; align-items: center; gap: 9px;
  padding-left: 16px;
  border-left: 1px solid var(--line);
}
.avatar {
  width: 26px; height: 26px;
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  font-size: calc(10px * var(--scale)); font-weight: 700;
  color: var(--ink);
}
.user-meta { line-height: 1.3; }
.user-name { font-size: calc(11px * var(--scale)); font-weight: 600; display: block; text-transform: uppercase; letter-spacing: 0.04em; }
.user-role { font-size: calc(9.5px * var(--scale)); color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.06em; }

/* KPI strip */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.kpi {
  background: var(--bg);
  padding: calc(14px * var(--density)) 16px calc(16px * var(--density));
  display: flex; flex-direction: column; gap: 8px;
}
.kpi-label {
  font-size: calc(9.5px * var(--scale)); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-dim);
}
.kpi-value {
  font-family: var(--font-display);
  font-size: calc(34px * var(--scale));
  color: var(--ink);
  line-height: 1;
}
.kpi-value .of { font-family: var(--font-mono); font-size: calc(12px * var(--scale)); font-weight: 500; color: var(--ink-faint); margin-left: 4px; }
.kpi.crit .kpi-value { color: var(--accent); }
.kpi.warn .kpi-value { color: var(--accent-dim); }

/* Panels */
.panel {
  border: 1px solid var(--line);
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(12px * var(--density)) 16px;
  border-bottom: 1px solid var(--line);
}
.panel-title {
  font-family: var(--font-mono);
  font-size: calc(11px * var(--scale)); font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
}
.panel-title .bracket { color: var(--ink-faint); font-weight: 400; }
.panel-sub { font-size: calc(10px * var(--scale)); color: var(--ink-faint); letter-spacing: 0.04em; text-transform: uppercase; }
.table-scroll { overflow-x: auto; }

thead tr { border-bottom: 1px solid var(--line); }
th {
  text-align: left;
  padding: calc(9px * var(--density)) 16px;
  font-size: calc(9.5px * var(--scale)); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-faint);
  white-space: nowrap;
}
tbody tr { border-bottom: 1px solid var(--line-soft); }
tbody tr:last-child { border-bottom: none; }
td {
  padding: calc(11px * var(--density)) 16px;
  font-size: calc(11.5px * var(--scale));
  color: var(--ink);
  vertical-align: middle;
}
.cell-dim { color: var(--ink-dim); }

.tag {
  display: inline-block;
  font-size: calc(10px * var(--scale)); font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 7px;
  border: 1px solid var(--line);
  color: var(--ink-dim);
}
.tag-crit { border-color: var(--accent); color: var(--accent); }
.tag-warn { border-color: var(--accent-dim); color: var(--accent-dim); }
.tag-safe { border-color: var(--line); color: var(--ink-faint); }
.tag-live { border-color: var(--live); color: var(--live); display: inline-flex; align-items: center; gap: 6px; }
.tag-none { border-color: var(--line); color: var(--ink-faint); }

.agent-cell { display: flex; align-items: center; gap: 9px; }
.agent-avatar {
  width: 22px; height: 22px;
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  font-size: calc(9px * var(--scale)); font-weight: 700; flex-shrink: 0;
  color: var(--ink-dim);
}
.agent-name { text-transform: uppercase; letter-spacing: 0.02em; }

.btn-row {
  display: inline-block;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-dim);
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: calc(9.5px * var(--scale)); font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
}
.btn-row:hover { border-color: var(--ink-faint); color: var(--ink); }
.btn-row.cta {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
.btn-row.cta:hover { filter: brightness(1.15); }

.split {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.split .panel { border: none; }

.equip-office { border-bottom: 1px solid var(--line); padding: 12px 16px; }
.equip-office:last-of-type { border-bottom: none; }
.equip-office-name {
  display: block;
  font-size: calc(10.5px * var(--scale)); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--ink);
  margin-bottom: 8px;
}
.equip-office-name .bracket { color: var(--ink-faint); font-weight: 400; }
dl.equip-list {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 5px 12px;
  margin: 0;
}
dl.equip-list dt {
  font-weight: 400; font-size: calc(11px * var(--scale)); color: var(--ink-dim);
  text-transform: uppercase; letter-spacing: 0.02em;
}
dl.equip-list dd {
  margin: 0; text-align: right;
  font-size: calc(11px * var(--scale)); font-weight: 600; color: var(--ink);
}
.view-all {
  display: block;
  padding: calc(12px * var(--density)) 16px;
  font-size: calc(10px * var(--scale)); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--accent);
  text-decoration: none;
  border-top: 1px solid var(--line);
}
.view-all:hover { background: var(--line-soft); }

.empty-row td {
  color: var(--ink-faint);
  font-style: normal;
  text-align: center;
  padding: 24px 16px;
}

/* Forms (shared by every *_form.php page) */
.form-panel {
  max-width: 560px;
  border: 1px solid var(--line);
  background: var(--bg);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.field select,
.field textarea {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 9px 11px;
  font-family: var(--font-mono);
  font-size: calc(12px * var(--scale));
}
.field select:focus-visible,
.field textarea:focus-visible { outline: 1px solid var(--accent); outline-offset: 1px; }
.field textarea { resize: vertical; min-height: 70px; }
.field-hint { font-size: calc(10px * var(--scale)); color: var(--ink-faint); }
.field-row { display: flex; gap: 14px; }
.field-row .field { flex: 1; }
.field-checkbox { display: flex; align-items: center; gap: 8px; flex-direction: row; }
.field-checkbox input { width: auto; }
form label.checkbox-label { text-transform: none; font-size: calc(11.5px * var(--scale)); color: var(--ink); font-weight: 400; letter-spacing: 0; }

.secret-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.secret-value { font-family: var(--font-mono); font-size: calc(11.5px * var(--scale)); color: var(--ink); word-break: break-all; }
.secret-reveal { font-size: calc(10px * var(--scale)); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--accent); }

.checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  max-height: 260px;
  overflow-y: auto;
}
.checkbox-list .field-checkbox {
  background: var(--bg);
  padding: 8px 11px;
}

.form-actions { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.btn-secondary {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-dim);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: calc(11px * var(--scale));
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}
.btn-secondary:hover { border-color: var(--ink-faint); color: var(--ink); }
.btn-danger {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: calc(9.5px * var(--scale));
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
}
.btn-danger:hover { background: var(--accent); color: var(--on-accent); }

.flash {
  border: 1px solid var(--line);
  padding: 10px 14px;
  font-size: calc(11px * var(--scale));
  letter-spacing: 0.02em;
}
.flash-ok { border-color: var(--live); color: var(--live); }
.flash-error { border-color: var(--accent); color: var(--accent); }

.page-head {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 14px;
  padding-bottom: calc(16px * var(--density));
  border-bottom: 1px solid var(--line);
}
.subnav { display: flex; align-items: center; gap: 10px; }
.subnav a { font-size: calc(11px * var(--scale)); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.inline-form { display: flex; align-items: flex-end; gap: 10px; flex-wrap: wrap; }
.inline-form .field { min-width: 140px; }

/* Login page */
.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}
.login-card {
  width: 340px;
  border: 1px solid var(--line);
  background: var(--bg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.login-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.login-title {
  font-family: var(--font-display);
  font-size: calc(18px * var(--scale));
  letter-spacing: -0.01em;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-size: calc(9.5px * var(--scale)); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-faint);
}
.field input {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 9px 11px;
  font-family: var(--font-mono);
  font-size: calc(12px * var(--scale));
}
.field input:focus-visible { outline: 1px solid var(--accent); outline-offset: 1px; }
.login-error {
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 8px 10px;
  font-size: calc(10.5px * var(--scale));
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.btn-submit {
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: calc(11px * var(--scale));
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
}
.btn-submit:hover { filter: brightness(1.1); }

@media (max-width: 980px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .split { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: repeat(2, minmax(0,1fr)); }
}