:root {
  color-scheme: light;
  --bg: #eef1f4;
  --surface: #ffffff;
  --surface-2: #f7f8fa;
  --line: #cfd6dd;
  --line-strong: #97a3ad;
  --text: #1f252b;
  --muted: #66727d;
  --green: #16784f;
  --green-soft: #d8f1e5;
  --amber: #a76c00;
  --amber-soft: #fff0ce;
  --red: #b21f2d;
  --red-soft: #ffe0e3;
  --ink: #15191d;
  --focus: #2164a5;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}

button,
input {
  font: inherit;
}

button {
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  border-radius: 6px;
  min-height: 38px;
  padding: 0 12px;
  cursor: pointer;
}

button:hover {
  border-color: var(--ink);
}

button:focus-visible,
input:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus) 28%, transparent);
  outline-offset: 2px;
}

button.primary {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.shell {
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

.login-view {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  display: grid;
  gap: 18px;
  box-shadow: 0 18px 40px rgba(31, 37, 43, 0.08);
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 28px;
  line-height: 1.05;
}

h2 {
  font-size: 15px;
}

.field {
  display: grid;
  gap: 6px;
}

.field span,
.meta-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

input {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  min-height: 40px;
  padding: 0 11px;
  color: var(--text);
  background: var(--surface);
}

.quick-tokens {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.status-line {
  min-height: 20px;
  margin: 0;
  color: var(--muted);
}

.app-view {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto auto 1fr;
}

.topbar {
  min-height: 72px;
  display: grid;
  grid-template-columns: minmax(140px, 220px) 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 12px 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.brand-block {
  display: grid;
  gap: 2px;
}

.top-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 10px;
}

.top-meta > div {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.top-meta strong {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.connection-badge {
  min-width: 86px;
  text-align: center;
  border-radius: 999px;
  padding: 7px 10px;
  background: var(--red-soft);
  color: var(--red);
  border: 1px solid color-mix(in srgb, var(--red) 35%, transparent);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0;
}

.connection-badge.online {
  background: var(--green-soft);
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 35%, transparent);
}

.frequency-strip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
}

.frequency {
  flex: 0 0 auto;
  min-width: 210px;
  display: grid;
  gap: 2px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
}

.frequency strong {
  font-size: 13px;
}

.frequency span {
  color: var(--muted);
  font-size: 12px;
}

.workspace {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(320px, 1fr) minmax(230px, 300px);
  grid-template-rows: 1fr 220px;
  grid-template-areas:
    "groups ptt users"
    "events events events";
  gap: 12px;
  padding: 12px;
}

.panel {
  min-height: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  overflow: hidden;
}

.panel-head {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
}

.panel-head span {
  color: var(--muted);
  font-weight: 800;
}

.talkgroups-panel {
  grid-area: groups;
  grid-template-rows: auto 1fr;
}

.ptt-panel {
  grid-area: ptt;
  grid-template-rows: auto 1fr auto auto auto auto;
}

.users-panel {
  grid-area: users;
  grid-template-rows: auto 1fr;
}

.event-panel {
  grid-area: events;
  grid-template-rows: auto 1fr;
}

.groups-list,
.users-list,
.event-log {
  overflow: auto;
}

.group-button,
.user-row {
  width: 100%;
  min-height: 62px;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: var(--surface);
  display: grid;
  gap: 2px;
  padding: 10px 12px;
  text-align: left;
}

.group-button:hover,
.user-row:hover {
  background: var(--surface-2);
}

.group-button.active {
  border-left: 5px solid var(--green);
  background: var(--green-soft);
  padding-left: 7px;
}

.group-line,
.user-line {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.group-meta,
.user-meta {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.security-pill {
  min-width: 32px;
  text-align: center;
  border-radius: 999px;
  background: var(--amber-soft);
  color: var(--amber);
  padding: 3px 7px;
  font-size: 12px;
  font-weight: 800;
}

.active-call {
  display: grid;
  gap: 4px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.active-call strong {
  font-size: clamp(26px, 5vw, 46px);
  line-height: 1;
}

.active-call span:last-child {
  min-height: 20px;
  color: var(--muted);
}

.ptt-stage {
  display: grid;
  grid-template-columns: minmax(180px, 320px) minmax(84px, 120px);
  justify-content: center;
  align-content: center;
  gap: 16px;
  padding: 18px;
}

.ptt-button {
  aspect-ratio: 1;
  width: min(320px, 58vw);
  border-radius: 50%;
  background: var(--green);
  border-color: color-mix(in srgb, var(--green) 75%, #000);
  color: #fff;
  font-size: 44px;
  font-weight: 900;
  letter-spacing: 0;
  box-shadow: inset 0 -12px 0 rgba(0, 0, 0, 0.12), 0 18px 32px rgba(22, 120, 79, 0.22);
  touch-action: none;
}

.ptt-button.pending {
  background: var(--amber);
}

.ptt-button.transmitting {
  background: var(--red);
  border-color: color-mix(in srgb, var(--red) 75%, #000);
  box-shadow: inset 0 -12px 0 rgba(0, 0, 0, 0.12), 0 18px 32px rgba(178, 31, 45, 0.24);
}

.ptt-button:disabled {
  background: #8c969f;
  border-color: #737d86;
  cursor: not-allowed;
  box-shadow: inset 0 -12px 0 rgba(0, 0, 0, 0.1);
}

.emergency-button {
  align-self: center;
  height: min(150px, 35vw);
  background: var(--red-soft);
  border-color: color-mix(in srgb, var(--red) 45%, transparent);
  color: var(--red);
  font-weight: 900;
}

.meter-row {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 10px;
  align-items: center;
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-weight: 800;
}

.meter {
  height: 10px;
  background: #d9dee4;
  border-radius: 999px;
  overflow: hidden;
  transition: opacity 120ms ease;
}

.meter.inactive {
  opacity: 0.38;
}

.meter-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--amber), var(--red));
}

.rx-fill {
  background: linear-gradient(90deg, var(--focus), var(--green), var(--amber));
}

.meter-status {
  min-width: 82px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-align: right;
}

.meter-status.muted {
  color: var(--red);
}

.meter-mode {
  min-height: 32px;
  min-width: 82px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  padding: 0 10px;
}

.meter-mode[aria-checked="true"] {
  background: var(--green-soft);
  border-color: color-mix(in srgb, var(--green) 45%, transparent);
  color: var(--green);
}

.direct-call {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: end;
  padding: 12px 18px;
}

.sds-call {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: end;
  padding: 0 18px 18px;
}

.user-row {
  cursor: pointer;
}

.user-row.local {
  background: var(--surface-2);
}

.event-log {
  list-style: none;
  margin: 0;
  padding: 0;
}

.event-log li {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.event-log time {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 980px) {
  .topbar {
    grid-template-columns: 1fr auto;
  }

  .top-meta {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(120px, 1fr));
  }

  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto 220px;
    grid-template-areas:
      "ptt"
      "groups"
      "users"
      "events";
  }

  .ptt-stage {
    grid-template-columns: minmax(160px, 260px) minmax(78px, 110px);
  }
}

@media (max-width: 560px) {
  .topbar {
    padding: 10px;
  }

  .top-meta {
    grid-template-columns: 1fr;
  }

  .workspace {
    padding: 8px;
    gap: 8px;
  }

  .ptt-stage {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .emergency-button {
    width: min(220px, 100%);
    height: 52px;
  }

  .direct-call {
    grid-template-columns: 1fr;
  }

  .sds-call {
    grid-template-columns: 1fr;
  }

  .meter-row {
    grid-template-columns: auto 1fr auto;
  }

  .meter-mode {
    grid-column: 2 / -1;
    justify-self: end;
  }
}