:root {
  color-scheme: dark;
  --bg-0: #031018;
  --bg-1: #082130;
  --bg-2: #11374a;
  --panel: rgba(6, 20, 30, 0.8);
  --panel-strong: rgba(5, 18, 27, 0.92);
  --panel-line: rgba(127, 220, 243, 0.18);
  --text: #effbfd;
  --muted: #95b8c6;
  --accent: #8bdcf1;
  --accent-2: #e4fbff;
  --danger: #ff8b78;
  --warning: #ffd47b;
  --good: #8cf3bb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Hiragino Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(139, 220, 241, 0.14), transparent 24%),
    linear-gradient(180deg, var(--bg-2), var(--bg-1) 32%, var(--bg-0));
  transition: background 240ms ease;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px),
    radial-gradient(circle at 76% 12%, rgba(255, 255, 255, 0.1) 0 1px, transparent 1px),
    radial-gradient(circle at 32% 82%, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px);
  background-size: 220px 220px;
  opacity: 0.3;
  transition: opacity 240ms ease;
}

body[data-light-condition="day"] {
  background:
    radial-gradient(circle at top, rgba(139, 220, 241, 0.16), transparent 24%),
    linear-gradient(180deg, #154762, #0a2434 34%, #031018);
}

body[data-light-condition="dusk"],
body[data-light-condition="dawn"] {
  background:
    radial-gradient(circle at top, rgba(255, 178, 118, 0.14), transparent 26%),
    linear-gradient(180deg, #314362, #102030 36%, #04111a);
}

body[data-light-condition="night"] {
  background:
    radial-gradient(circle at top, rgba(119, 164, 205, 0.08), transparent 22%),
    linear-gradient(180deg, #0b1625, #06101a 34%, #02070d);
}

body[data-light-condition="night"]::before {
  opacity: 0.48;
}

.app-shell {
  padding: 18px;
}

.panel {
  border: 1px solid var(--panel-line);
  border-radius: 28px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

.bridge-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 24px;
  background:
    linear-gradient(135deg, rgba(139, 220, 241, 0.1), transparent 40%),
    var(--panel-strong);
}

.banner-strip {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.banner-pill,
.stat-card,
.mission-card,
.status-card,
.control-card,
.console-card,
.strip-card {
  border: 1px solid rgba(139, 220, 241, 0.12);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
}

.banner-pill {
  min-width: 120px;
  padding: 12px 14px;
}

.banner-controls {
  min-width: 290px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.banner-control-line {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 7px;
  flex-wrap: wrap;
}

.banner-inline-label {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.header-button {
  padding: 4px 10px;
  font-size: 0.74rem;
  line-height: 1.1;
}

.difficulty-button {
  color: #f7c87a;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(141, 219, 237, 0.35);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.banner-pill strong,
.stat-card strong,
.status-card strong,
.strip-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.15rem;
}

.layout {
  display: grid;
  grid-template-columns: 320px minmax(360px, 1fr) 380px;
  gap: 18px;
  margin-top: 18px;
  min-height: calc(100vh - 140px);
}

.left-column,
.center-column,
.right-column {
  padding: 20px;
}

.left-column,
.right-column {
  display: flex;
  flex-direction: column;
}

.hero-card {
  padding-bottom: 6px;
}

.eyebrow,
.label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-2);
}

h1,
h2 {
  margin: 10px 0 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 0.95;
}

h2 {
  font-size: 1.45rem;
}

.description,
.mission-card p,
.status,
.support-text,
.contact-list,
.console-card p,
.log {
  color: var(--muted);
  line-height: 1.65;
}

.description {
  margin: 14px 0 0;
}

.mission-card,
.status-card,
.console-card {
  padding: 16px 18px;
}

.command-chain-card {
  margin-top: 18px;
}

.chain-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 10px;
}

.priority-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(139, 220, 241, 0.18);
  color: var(--accent-2);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
}

.priority-pill[data-priority="high"] {
  color: #fff3c5;
  border-color: rgba(255, 212, 123, 0.22);
  background: rgba(255, 212, 123, 0.08);
}

.priority-pill[data-priority="critical"] {
  color: #ffe4dc;
  border-color: rgba(255, 139, 120, 0.28);
  background: rgba(255, 139, 120, 0.08);
}

.chain-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.chain-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(139, 220, 241, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.chain-list span {
  color: var(--accent-2);
}

.chain-list strong {
  color: var(--muted);
  text-align: right;
}

.mission-card {
  margin-top: 18px;
}

.mission-card p,
.console-card p,
.support-text {
  margin: 10px 0 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.stat-card,
.strip-card {
  padding: 14px 15px;
}

.strip-card p {
  margin: 8px 0 0;
  font-size: 0.9rem;
}

.station-meta,
.phase-meta,
.status-brief {
  margin-top: 18px;
}

.phase-meta strong {
  color: var(--warning);
}

.status {
  min-height: 3.2em;
  margin: 10px 0 0;
}

.status[data-tone="good"] {
  color: var(--good);
}

.status[data-tone="bad"] {
  color: var(--danger);
}

.status[data-tone="warning"] {
  color: var(--warning);
}

.topbar,
.log-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  color: var(--muted);
  font-size: 0.92rem;
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot.sub {
  background: var(--accent-2);
}

.dot.convoy {
  background: #99d9a4;
}

.dot.escort {
  background: var(--danger);
}

.dot.flagship {
  background: var(--warning);
}

.station-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 11px 12px;
  font: inherit;
  font-weight: 700;
  color: #04212c;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease, opacity 140ms ease;
}

button:hover,
button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(139, 220, 241, 0.24);
}

button.active {
  background: linear-gradient(135deg, var(--warning), #fff3c5);
}

button.completed {
  background: linear-gradient(135deg, var(--good), #dffff0);
  box-shadow: 0 0 0 1px rgba(140, 243, 187, 0.2) inset;
}

button.dim {
  background: linear-gradient(135deg, #708792, #afc4cc);
}

.station-tab {
  padding-top: 13px;
  padding-bottom: 13px;
}

.station-tab.active {
  background: linear-gradient(135deg, #ffd57c, #fff1c7);
}

.plot-frame {
  position: relative;
  padding: 14px 14px 42px;
  border-radius: 26px;
  border: 1px solid rgba(139, 220, 241, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 20%),
    rgba(3, 15, 22, 0.72);
}

.plot-overlay-card {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 250px;
  padding: 12px;
  border-radius: 18px;
  border: 1px solid rgba(139, 220, 241, 0.16);
  background: rgba(3, 15, 22, 0.72);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(10px);
  pointer-events: none;
  z-index: 2;
}

#theatre-plot-canvas {
  margin-top: 8px;
  width: 100%;
  height: auto;
  border-radius: 14px;
}

.plot-stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 14px;
  align-items: start;
}

.center-column.periscope-layout .plot-stage,
.center-column.torpedo-layout .plot-stage {
  grid-template-columns: minmax(0, 1fr) 320px;
}

.plot-side-card {
  align-self: stretch;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 20px;
  border: 1px solid rgba(139, 220, 241, 0.16);
  background:
    radial-gradient(circle at 50% 12%, rgba(139, 220, 241, 0.18), transparent 24%),
    linear-gradient(180deg, #0a2536, #04141d);
}

.screen-bezel {
  position: absolute;
  right: 18px;
  bottom: 14px;
  left: 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: rgba(228, 251, 255, 0.5);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.tactical-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.right-column {
  gap: 14px;
}

.station-panel {
  display: none;
}

.station-panel.active {
  display: block;
}

.duty-card {
  margin-bottom: 14px;
}

.duty-list {
  margin: 10px 0 0;
  display: grid;
  gap: 10px;
}

.duty-list div {
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(139, 220, 241, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.duty-list dt {
  margin: 0;
  color: var(--accent-2);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
}

.duty-list dd {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.compact-duty {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.control-card {
  padding: 14px;
}

.button-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 10px;
}

.button-row.triple {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.button-row.dual {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.button-row.single {
  grid-template-columns: 1fr;
}

.contact-list {
  margin: 10px 0 0;
  padding-left: 18px;
  min-height: 8em;
}

.contact-list li + li {
  margin-top: 8px;
}

.sonar-contact-item {
  list-style: none;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(139, 220, 241, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.sonar-contact-line {
  color: var(--muted);
}

.sonar-stage {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  margin-top: 8px;
}

.sonar-stage-step {
  padding: 5px 6px;
  border-radius: 999px;
  border: 1px solid rgba(139, 220, 241, 0.1);
  background: rgba(255, 255, 255, 0.02);
  color: rgba(228, 251, 255, 0.48);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-align: center;
}

.sonar-stage-step.active {
  border-color: rgba(140, 243, 187, 0.24);
  background: rgba(140, 243, 187, 0.1);
  color: #dffff0;
}

.log-card {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.alarm-card {
  border-color: rgba(255, 139, 120, 0.2);
  background:
    linear-gradient(135deg, rgba(255, 139, 120, 0.08), transparent 42%),
    rgba(255, 255, 255, 0.04);
}

.alarm-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
}

.alarm-timer {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 139, 120, 0.24);
  color: #ffe4dc;
  background: rgba(255, 139, 120, 0.1);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
}

.alarm-task-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.alarm-task-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 14px;
  border: 1px solid rgba(139, 220, 241, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
}

.alarm-task-list li.done {
  border-color: rgba(140, 243, 187, 0.2);
  background: rgba(140, 243, 187, 0.08);
  color: #dffff0;
}

.alarm-task-list li.critical {
  border-color: rgba(255, 139, 120, 0.2);
}

.alarm-task-list strong {
  color: var(--accent-2);
  font-size: 0.84rem;
}

.log {
  margin: 10px 0 0;
  padding-left: 20px;
  max-height: 100%;
  overflow: auto;
}

.log li + li {
  margin-top: 10px;
}

.restart-button {
  white-space: nowrap;
}

.time-scale-button {
  padding: 3px 10px;
  font-size: 11px;
  color: #a5c1cd;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(141, 219, 237, 0.35);
  border-radius: 999px;
  cursor: pointer;
}

.time-scale-button.active {
  color: #08131b;
  background: linear-gradient(135deg, #ffe08b, #bfefff);
  border-color: transparent;
}

.build-version {
  position: fixed;
  right: 14px;
  bottom: 10px;
  z-index: 20;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid rgba(141, 219, 237, 0.16);
  background: rgba(3, 15, 22, 0.58);
  color: rgba(223, 250, 255, 0.7);
  font-size: 11px;
  letter-spacing: 0.08em;
  backdrop-filter: blur(8px);
  pointer-events: none;
}

@media (max-width: 1320px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .right-column {
    min-height: auto;
  }

  .center-column.periscope-layout .plot-stage,
  .center-column.torpedo-layout .plot-stage {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .app-shell {
    padding: 12px;
  }

  .bridge-banner,
  .left-column,
  .center-column,
  .right-column {
    padding: 16px;
  }

  .bridge-banner,
  .topbar,
  .log-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .stats-grid,
  .station-tabs,
  .tactical-strip,
  .button-row,
  .button-row.triple {
    grid-template-columns: 1fr 1fr;
  }

  .plot-overlay-card {
    position: static;
    width: auto;
    margin-top: 12px;
    pointer-events: none;
  }
}