/* Vigalert — gate control panel
 *
 * Palette is a machine cabinet: enamel green-grey body, engraved label
 * plates, safety yellow for caution. Red and green are RESERVED — they
 * appear only where they carry signal meaning. Nothing decorative is ever
 * red or green, so when you see one you know what it means.
 *
 * System fonts only. This has to render on a gate VLAN with no internet.
 */

:root {
  --enamel:       #262c2a;
  --enamel-up:    #313937;
  --enamel-edge:  #171c1b;
  --plate:        #d9d6cc;
  --plate-dim:    #8f948f;
  --safety:       #e8b429;
  --signal-red:   #e0392c;
  --signal-green: #23b256;
  --ink:          #0e1211;

  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas,
          "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --r: 3px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--enamel);
  color: var(--plate);
  font: 15px/1.55 var(--sans);
  -webkit-text-size-adjust: 100%;
}

main { max-width: 940px; margin: 0 auto; padding: 22px 18px 64px; }

h1 { font-size: 20px; margin: 26px 0 6px; font-weight: 600; }
h2 { font-size: 16px; margin: 30px 0 10px; font-weight: 600; }

a { color: var(--plate); }

/* --- engraved plate lettering ------------------------------------------- */

.wordmark {
  font: 600 22px/1 var(--mono);
  letter-spacing: .34em;
  margin: 0;
  color: var(--plate);
}
.wordmark.small { font-size: 13px; letter-spacing: .28em; }

.mono, .position, .tag, .kind, .meta { font-family: var(--mono); }

/* --- top bar ------------------------------------------------------------- */

.topbar {
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  padding: 14px 18px;
  background: var(--enamel-edge);
  border-bottom: 1px solid #000;
}
.topbar nav { display: flex; gap: 16px; margin-right: auto; }
.topbar nav a {
  font: 500 12px/1 var(--mono);
  letter-spacing: .14em; text-transform: uppercase;
  text-decoration: none; color: var(--plate-dim);
  padding: 6px 0; border-bottom: 2px solid transparent;
}
.topbar nav a:hover { color: var(--plate); }
.topbar nav a.on { color: var(--plate); border-bottom-color: var(--safety); }
.who { font: 12px var(--mono); color: var(--plate-dim); margin-right: 10px; }

/* --- the signal head: the one bold thing --------------------------------- */

.signal {
  flex: none;
  width: 62px; padding: 8px 8px 9px;
  background: var(--enamel-edge);
  border: 1px solid #000;
  border-radius: 7px;
  box-shadow: inset 0 1px 0 #ffffff12, 0 2px 6px #0006;
  display: flex; flex-direction: column; gap: 8px;
}

.lamp {
  display: block;
  width: 44px; height: 44px;
  border-radius: 50%;
  /* unlit means unlit — a dark well, not a grey circle */
  background: #101413;
  box-shadow: inset 0 2px 5px #000, inset 0 -1px 0 #ffffff08;
  transition: background .25s ease, box-shadow .25s ease;
}

.signal.stop .lamp.red {
  background: var(--signal-red);
  box-shadow: inset 0 -3px 8px #0007, 0 0 16px #e0392c88;
}
.signal.go .lamp.green {
  background: var(--signal-green);
  box-shadow: inset 0 -3px 8px #0007, 0 0 16px #23b25688;
}
.signal.moving .lamp.red {
  background: var(--safety);
  box-shadow: inset 0 -3px 8px #0007, 0 0 16px #e8b42988;
  animation: pulse 1.1s steps(2, jump-none) infinite;
}

@keyframes pulse { 50% { opacity: .35; } }
@media (prefers-reduced-motion: reduce) {
  .signal.moving .lamp.red { animation: none; }
}

/* --- gate cards ---------------------------------------------------------- */

.gates { display: flex; flex-direction: column; gap: 16px; }

.gate {
  background: var(--enamel-up);
  border: 1px solid var(--enamel-edge);
  border-radius: var(--r);
  padding: 18px;
}
.gate.offline { opacity: .72; }

.signal-row { display: flex; gap: 18px; align-items: flex-start; }
.readout h2 { margin: 2px 0 4px; font-size: 17px; }

.position {
  margin: 0;
  font-size: 26px; font-weight: 600; letter-spacing: .1em;
  line-height: 1.1;
}

.meta { margin: 8px 0 0; font-size: 11.5px; color: var(--plate-dim);
        display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

.tag {
  font-size: 10.5px; letter-spacing: .1em;
  border: 1px solid #ffffff26; border-radius: 2px;
  padding: 3px 7px; color: var(--plate-dim);
}
.tag.live { color: var(--plate); border-color: #ffffff55; }
.tag.caution { color: var(--safety); border-color: #e8b42966; }
.warn {
  font-size: 10.5px; letter-spacing: .1em;
  color: var(--ink); background: var(--safety);
  padding: 3px 7px; border-radius: 2px; font-weight: 700;
}

/* --- controls ------------------------------------------------------------ */

.controls {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  margin-top: 18px; padding-top: 16px;
  border-top: 1px solid #ffffff14;
}

.inline { display: inline-flex; gap: 8px; align-items: center; margin: 0; }

.btn {
  font: 600 12px/1 var(--mono);
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--plate);
  background: var(--enamel-up);
  border: 1px solid #ffffff2e;
  border-bottom-color: #0009;
  border-radius: var(--r);
  padding: 11px 16px;
  cursor: pointer;
  box-shadow: inset 0 1px 0 #ffffff12;
}
.btn:hover:not(:disabled) { background: #3b4441; }
.btn:active:not(:disabled) { transform: translateY(1px); box-shadow: none; }
.btn:disabled { opacity: .38; cursor: not-allowed; }

.btn.primary { background: var(--plate); color: var(--ink); border-color: #fff6; }
.btn.primary:hover:not(:disabled) { background: #fff; }

.btn.caution { border-color: #e8b42977; color: var(--safety); }

.linkbtn {
  background: none; border: 0; padding: 0;
  color: var(--plate-dim); cursor: pointer;
  font: 11.5px var(--mono); text-decoration: underline;
  text-underline-offset: 3px;
}
.linkbtn:hover { color: var(--plate); }
.linkbtn.danger:hover { color: var(--signal-red); }

select, input[type=text], input[type=email], input[type=password], input[type=time] {
  font: 13px var(--mono);
  background: var(--enamel-edge);
  color: var(--plate);
  border: 1px solid #ffffff26;
  border-radius: var(--r);
  padding: 9px 10px;
}
:focus-visible { outline: 2px solid var(--safety); outline-offset: 2px; }

/* --- forms --------------------------------------------------------------- */

.stack { display: flex; flex-direction: column; gap: 14px; max-width: 360px; }
.stack.wide { max-width: 520px; }
.stack label { display: flex; flex-direction: column; gap: 6px;
               font: 11px var(--mono); letter-spacing: .1em;
               text-transform: uppercase; color: var(--plate-dim); }
.stack label input, .stack label select { text-transform: none; letter-spacing: 0; }
.row { display: flex; gap: 14px; }
.check { flex-direction: row !important; align-items: center; gap: 8px !important; }

.days { border: 1px solid #ffffff1f; border-radius: var(--r); padding: 10px 12px; }
.days legend { font: 11px var(--mono); letter-spacing: .1em;
               text-transform: uppercase; color: var(--plate-dim); padding: 0 5px; }
.day { display: inline-flex; align-items: center; gap: 5px; margin-right: 11px;
       font: 12px var(--mono); }

/* --- tables -------------------------------------------------------------- */

.grid { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 13px; }
.grid th {
  text-align: left; font: 10.5px var(--mono); letter-spacing: .12em;
  text-transform: uppercase; color: var(--plate-dim);
  padding: 8px 10px; border-bottom: 1px solid #ffffff26;
}
.grid td { padding: 9px 10px; border-bottom: 1px solid #ffffff12; }
.grid tr.off { opacity: .5; }
.grid .empty { color: var(--plate-dim); padding: 22px 10px; }
.dim { color: var(--plate-dim); }

.kind { font-size: 11px; letter-spacing: .06em; }
.k-guard_blocked, .k-divergence, .k-auth_failure,
.k-device_offline, .k-command_failed { color: var(--safety); }

.filter { margin-top: 14px; }
.filter label { font: 11px var(--mono); letter-spacing: .1em;
                text-transform: uppercase; color: var(--plate-dim);
                display: inline-flex; gap: 8px; align-items: center; }

/* --- misc ---------------------------------------------------------------- */

.flash {
  max-width: 940px; margin: 14px auto 0; padding: 11px 14px;
  font: 12px var(--mono);
  background: var(--enamel-up); border-left: 3px solid var(--plate-dim);
  border-radius: 2px;
}
.flash.bad { border-left-color: var(--safety); color: var(--safety); }

.note { color: var(--plate-dim); font-size: 12.5px; margin-top: 20px;
        max-width: 620px; }

.gate-login { max-width: 340px; margin: 14vh auto 0; padding: 0 18px; }
.plate { margin-bottom: 28px; }
.plate .sub { font: 11px var(--mono); letter-spacing: .2em;
              text-transform: uppercase; color: var(--plate-dim);
              margin: 8px 0 0; }

@media (max-width: 560px) {
  .signal { width: 52px; }
  .lamp { width: 36px; height: 36px; }
  .position { font-size: 21px; }
  .controls .btn { flex: 1 1 auto; }
  .topbar { gap: 12px; }
}

/* --- one-time secret reveal ---------------------------------------------- */
/* Shown once, never again. Framed as a thing to act on now, not a notice. */

.reveal {
  margin: 18px 0;
  padding: 14px 16px;
  background: var(--enamel-edge);
  border: 1px solid var(--safety);
  border-radius: var(--r);
}
.reveal .label {
  margin: 0 0 9px;
  font: 700 10.5px/1 var(--mono);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--safety);
}
.secret {
  display: block; word-break: break-all;
  font: 13px var(--mono); color: var(--plate);
  background: #0c0f0e; border: 1px solid #ffffff1f;
  border-radius: 2px; padding: 11px 12px; user-select: all;
}
.reveal .note { margin: 9px 0 0; font-size: 11.5px; }