:root {
  color-scheme: light;
  --bg: #eef3f1;
  --ink: #12201d;
  --muted: #65736f;
  --panel: #ffffff;
  --line: #dce6e2;
  --teal: #0a8f7a;
  --teal-deep: #066756;
  --lime: #c8f35f;
  --amber: #f3b43f;
  --red: #d94738;
  --blue: #3766d6;
  --violet: #6354b8;
  --shadow: 0 24px 70px rgba(20, 41, 36, 0.16);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 8% 12%, rgba(200, 243, 95, 0.25), transparent 26%),
    linear-gradient(135deg, #f7faf8 0%, var(--bg) 42%, #e7edf7 100%);
  color: var(--ink);
  font-family:
    Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Noto Sans KR",
    sans-serif;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.workspace {
  width: min(1180px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(360px, 460px);
  gap: 34px;
  align-items: center;
  padding: 36px 0;
}

.context-panel {
  display: grid;
  gap: 22px;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-mark {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: white;
  font-weight: 800;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 34px;
  line-height: 1.1;
}

.brand-row p,
.brief-grid p {
  color: var(--muted);
  line-height: 1.65;
}

.ops-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.ops-strip div,
.brief-grid article,
.console-panel {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 34px rgba(37, 56, 52, 0.08);
}

.ops-strip div {
  min-height: 82px;
  border-radius: 8px;
  padding: 18px;
}

.ops-strip strong,
.ops-strip span {
  display: block;
}

.ops-strip strong {
  font-size: 13px;
  color: var(--muted);
}

.ops-strip span {
  margin-top: 8px;
  font-weight: 800;
}

.brief-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.brief-grid article {
  border-radius: 8px;
  padding: 20px;
}

.brief-grid h2 {
  margin-bottom: 10px;
  font-size: 18px;
}

.console-panel {
  border-radius: 8px;
  overflow: hidden;
}

.console-title {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  font-weight: 800;
}

.console-title button,
.location-actions button,
.message-form button {
  border: 0;
  border-radius: 8px;
  background: var(--ink);
  color: white;
  padding: 10px 14px;
  font-weight: 800;
}

.channel-list {
  display: grid;
}

.channel-row {
  min-height: 62px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
}

.channel-row:last-child {
  border-bottom: 0;
}

.channel-row strong,
.channel-row span {
  display: block;
}

.channel-row span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.channel-state {
  min-width: 88px;
  border-radius: 999px;
  padding: 7px 10px;
  text-align: center;
  color: white;
  background: var(--teal);
  font-size: 12px;
  font-weight: 800;
}

.channel-state.warning {
  background: var(--amber);
  color: #2f2207;
}

.channel-state.alert {
  background: var(--red);
}

.phone-stage {
  display: grid;
  place-items: center;
}

.phone-shell {
  width: min(100%, 414px);
  min-height: 780px;
  display: grid;
  grid-template-rows: 34px 1fr 78px;
  overflow: hidden;
  border: 10px solid #151b1a;
  border-radius: 34px;
  background: #101614;
  box-shadow: var(--shadow);
}

.phone-status,
.bottom-nav {
  color: white;
}

.phone-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  font-size: 12px;
  background: #111816;
}

.app-screen {
  position: relative;
  display: grid;
  grid-template-rows: auto auto 1fr;
  min-height: 0;
  background: #f7faf8;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  padding: 20px 20px 12px;
  background: linear-gradient(135deg, #ffffff 0%, #eef8f2 100%);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin-bottom: 4px;
  color: var(--teal-deep);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.top-bar h2 {
  font-size: 25px;
  letter-spacing: 0;
}

.icon-button {
  width: 54px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  color: var(--teal-deep);
  font-size: 12px;
  font-weight: 900;
}

.emergency-banner {
  min-height: 62px;
  padding: 11px 20px;
  background: var(--red);
  color: white;
}

.emergency-banner strong,
.emergency-banner span {
  display: block;
}

.emergency-banner span {
  margin-top: 4px;
  font-size: 13px;
}

.tab-panel {
  display: none;
  min-height: 0;
  padding: 18px 20px 20px;
  overflow: auto;
}

.tab-panel.is-active {
  display: block;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.status-cell {
  min-height: 76px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 12px;
}

.status-cell span,
.status-cell strong {
  display: block;
}

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

.status-cell strong {
  margin-top: 8px;
  font-size: 16px;
}

.ptt-zone {
  display: grid;
  gap: 14px;
  justify-items: center;
  padding: 32px 0 22px;
}

.ptt-button {
  width: 216px;
  aspect-ratio: 1;
  border: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 255, 255, 0.5), transparent 24%),
    linear-gradient(145deg, var(--teal), var(--teal-deep));
  color: white;
  box-shadow: 0 18px 34px rgba(10, 143, 122, 0.35);
}

.ptt-button span,
.ptt-button small {
  display: block;
}

.ptt-button span {
  font-size: 44px;
  font-weight: 900;
}

.ptt-button small {
  margin-top: 6px;
  font-weight: 800;
  text-transform: uppercase;
}

.ptt-button.is-talking {
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 255, 255, 0.42), transparent 24%),
    linear-gradient(145deg, var(--amber), var(--red));
  color: #1e130b;
  box-shadow: 0 18px 42px rgba(217, 71, 56, 0.36);
}

.emergency-button {
  width: 100%;
  min-height: 52px;
  border: 0;
  border-radius: 8px;
  background: #ffe8e4;
  color: #9d2017;
  font-weight: 900;
}

.activity-feed,
.group-list,
.message-list {
  display: grid;
  gap: 10px;
}

.feed-row,
.group-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}

.feed-row {
  min-height: 76px;
  display: grid;
  grid-template-columns: 14px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px;
}

.feed-row p {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.feed-row time {
  color: var(--muted);
  font-size: 12px;
}

.unit-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(243, 180, 63, 0.22);
}

.unit-dot.idle {
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(10, 143, 122, 0.18);
}

.section-heading {
  min-height: 42px;
  display: flex;
  align-items: start;
  justify-content: space-between;
  margin-bottom: 14px;
}

.section-heading h3 {
  font-size: 20px;
}

.section-heading span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.group-card {
  width: 100%;
  min-height: 76px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 14px;
  text-align: left;
}

.group-card button {
  border: 0;
  border-radius: 8px;
  background: #e8f6f2;
  color: var(--teal-deep);
  padding: 9px 12px;
  font-weight: 900;
}

.group-card.is-current {
  border-color: var(--teal);
  background: #f0fbf7;
}

.group-card p {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.map-visual {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #dfece8;
}

.map-visual svg {
  display: block;
  width: 100%;
  min-height: 310px;
}

.map-visual rect {
  fill: #e8f2ee;
}

.map-road {
  fill: none;
  stroke: #c3d5d0;
  stroke-width: 20;
  stroke-linecap: round;
}

.map-road.secondary {
  stroke: #d2dcdd;
  stroke-width: 16;
}

.map-line {
  fill: none;
  stroke: var(--violet);
  stroke-width: 6;
  stroke-linecap: round;
}

.map-node {
  fill: white;
  stroke: var(--violet);
  stroke-width: 4;
}

.map-node.current {
  fill: var(--lime);
  stroke: var(--teal-deep);
}

.map-node.alert {
  fill: var(--red);
  stroke: white;
}

.map-overlay {
  position: absolute;
  right: 14px;
  bottom: 14px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  padding: 12px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.map-overlay strong,
.map-overlay span {
  display: block;
}

.map-overlay span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
}

.location-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 12px;
}

.location-actions button {
  min-height: 48px;
  padding: 8px;
}

.message-list {
  min-height: 390px;
  align-content: start;
}

.message {
  max-width: 84%;
  border-radius: 8px;
  padding: 12px 14px;
  line-height: 1.35;
}

.message.incoming {
  justify-self: start;
  background: white;
  border: 1px solid var(--line);
}

.message.outgoing {
  justify-self: end;
  background: var(--teal-deep);
  color: white;
}

.message-form {
  display: grid;
  grid-template-columns: 1fr 78px;
  gap: 8px;
  margin-top: 14px;
}

.message-form input {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
}

.bottom-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 10px;
  background: #111816;
}

.bottom-nav button {
  min-width: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #aebbb7;
  font-size: 12px;
  font-weight: 900;
}

.bottom-nav button.is-active {
  background: #20312d;
  color: var(--lime);
}

body.a11y-mode {
  --bg: #ffffff;
  --ink: #050505;
  --muted: #333333;
  --line: #000000;
  --teal: #005f51;
  --teal-deep: #003d34;
  --lime: #ffff00;
}

body.a11y-mode .app-screen,
body.a11y-mode .top-bar,
body.a11y-mode .status-cell,
body.a11y-mode .feed-row,
body.a11y-mode .group-card,
body.a11y-mode .brief-grid article,
body.a11y-mode .console-panel,
body.a11y-mode .ops-strip div {
  background: #ffffff;
}

body.a11y-mode .phone-shell {
  border-color: #000000;
}

body.a11y-mode button:focus,
body.a11y-mode input:focus {
  outline: 4px solid #ffff00;
  outline-offset: 2px;
}

@media (max-width: 940px) {
  .workspace {
    grid-template-columns: 1fr;
    padding: 22px 0;
  }

  .context-panel {
    order: 2;
  }

  .phone-stage {
    order: 1;
  }
}

@media (max-width: 560px) {
  .workspace {
    width: min(100% - 18px, 430px);
  }

  .brief-grid,
  .ops-strip {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 28px;
  }

  .phone-shell {
    min-height: 720px;
    border-width: 7px;
    border-radius: 28px;
  }

  .ptt-button {
    width: 190px;
  }
}