:root {
  --ink: #10141a;
  --slab: #171d25;
  --raise: #1e2731;
  --edge: #232c37;
  --text: #d9e2ec;
  --dim: #74838f;
  --signal: #f0a830;
  --live: #55c08a;
  --fault: #e05b4b;

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

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 16px 64px;
}

/* ---------------------------------------------------------- status rail */

.rail {
  border: 1px solid var(--edge);
  border-left: 3px solid var(--dim);
  background: var(--slab);
  padding: 14px 16px;
  margin-bottom: 20px;
}

.rail[data-state="active"] { border-left-color: var(--live); }
.rail[data-state="inactive"] { border-left-color: var(--fault); }
.rail[data-state="activating"] { border-left-color: var(--signal); }

.rail-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.lamp {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--dim);
  flex: none;
}

.rail[data-state="active"] .lamp {
  background: var(--live);
  box-shadow: 0 0 0 0 rgba(85, 192, 138, 0.6);
  animation: pulse 2.4s ease-out infinite;
}
.rail[data-state="inactive"] .lamp { background: var(--fault); }
.rail[data-state="activating"] .lamp { background: var(--signal); }

@keyframes pulse {
  70% { box-shadow: 0 0 0 8px rgba(85, 192, 138, 0); }
  100% { box-shadow: 0 0 0 0 rgba(85, 192, 138, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .rail .lamp { animation: none; }
}

.rail-state {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rail-readout {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
}

.rail-readout b {
  color: var(--text);
  font-weight: 500;
}

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

.card {
  border: 1px solid var(--edge);
  background: var(--slab);
  padding: 16px;
  margin-bottom: 16px;
}

.card > h2 {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--edge);
}

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

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

button {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--text);
  background: var(--raise);
  border: 1px solid var(--edge);
  padding: 9px 14px;
  cursor: pointer;
  transition: border-color 0.12s, color 0.12s;
}

button:hover:not(:disabled) { border-color: var(--dim); }
button:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }
button:disabled { opacity: 0.4; cursor: not-allowed; }

button.primary { border-color: var(--live); color: var(--live); }
button.danger { border-color: var(--fault); color: var(--fault); }
button.wide { width: 100%; }

input, select {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--text);
  background: var(--ink);
  border: 1px solid var(--edge);
  padding: 9px 10px;
  width: 100%;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--signal);
}

input[type="checkbox"] { width: auto; accent-color: var(--signal); }

label {
  display: block;
  font-size: 13px;
  color: var(--dim);
  margin-bottom: 5px;
}

.field { margin-bottom: 14px; }

.inline { display: flex; gap: 8px; }
.inline input { flex: 1; }

/* ---------------------------------------------------------- players */

.players { font-family: var(--mono); font-size: 13px; }

.player {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--edge);
}

.player:last-child { border-bottom: none; }
.player small { color: var(--dim); }

.empty {
  color: var(--dim);
  font-family: var(--mono);
  font-size: 13px;
  padding: 6px 0;
}

/* ---------------------------------------------------------- settings */

.settings-list { display: grid; gap: 12px; }

.setting {
  display: grid;
  grid-template-columns: 1fr 130px;
  align-items: center;
  gap: 12px;
}

.setting span {
  font-family: var(--mono);
  font-size: 12px;
  word-break: break-word;
}

.search { margin-bottom: 14px; }

.dirty { border-left: 2px solid var(--signal); padding-left: 10px; }

/* ---------------------------------------------------------- feedback */

.toast {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  max-width: 688px;
  margin: 0 auto;
  padding: 12px 14px;
  font-size: 14px;
  background: var(--raise);
  border: 1px solid var(--edge);
  border-left: 3px solid var(--signal);
  display: none;
}

.toast.show { display: block; }
.toast.ok { border-left-color: var(--live); }
.toast.err { border-left-color: var(--fault); }

/* ---------------------------------------------------------- login */

.login {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login .card { width: 100%; max-width: 360px; margin: 0; }

.login h1 {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 4px;
}

.login p {
  font-size: 13px;
  color: var(--dim);
  margin: 0 0 20px;
}

.code-input {
  font-family: var(--mono);
  font-size: 20px;
  letter-spacing: 0.3em;
  text-align: center;
}

.error {
  color: var(--fault);
  font-size: 13px;
  min-height: 18px;
  margin-top: 10px;
}

.foot {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  text-align: center;
  letter-spacing: 0.08em;
}

/* ---------------------------------------------------------- modal MFA */

body.modal-open { overflow: hidden; }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(8, 11, 15, 0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
}

.modal[hidden] { display: none; }

.modal-card {
  width: 100%;
  max-width: 340px;
  background: var(--slab);
  border: 1px solid var(--edge);
  border-top: 3px solid var(--signal);
  padding: 22px 20px;
}

.modal-card h2 {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 6px;
}

.modal-sub {
  font-size: 13px;
  color: var(--dim);
  margin: 0 0 18px;
}

.modal-card .code-input { margin-bottom: 14px; }
.modal-card button { margin-bottom: 8px; }

button.ghost {
  background: transparent;
  color: var(--dim);
}

button.small { padding: 5px 10px; font-size: 13px; }

/* ---------------------------------------------------------- invitations */

.sub {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 22px 0 8px;
}

.invite-result {
  margin-top: 14px;
  padding: 12px;
  border: 1px solid var(--edge);
  border-left: 3px solid var(--signal);
  background: var(--ink);
}

.invite-result input {
  font-family: var(--mono);
  font-size: 12px;
}

.whoami {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  margin: 0 0 12px;
}

/* ---------------------------------------------------------- enrolement */

.qr-block {
  text-align: center;
  padding: 16px 0;
  margin-bottom: 14px;
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
}

.qr-label {
  font-size: 13px;
  color: var(--dim);
  margin: 0 0 12px;
}

.qr-block img {
  background: #fff;
  padding: 8px;
  max-width: 100%;
  height: auto;
}

.qr-secret {
  font-size: 12px;
  color: var(--dim);
  margin: 12px 0 0;
  word-break: break-all;
}

.qr-secret code {
  font-family: var(--mono);
  color: var(--text);
}

.hint {
  font-size: 12px;
  color: var(--dim);
  margin: 5px 0 0;
}

.fail { color: var(--fault); }

.ok-msg {
  color: var(--live);
  font-size: 14px;
  margin: 0 0 16px;
}

.link-btn {
  display: block;
  text-align: center;
  padding: 9px 14px;
  border: 1px solid var(--live);
  color: var(--live);
  text-decoration: none;
  font-size: 14px;
}