:root {
  --void: #060a12;
  --hull: #0d1421;
  --panel: #121c2f;
  --edge: #23324e;
  --edge-strong: #3a5688;
  --ink: #e9effc;
  --ink-dim: #97a9c9;
  --signal: #5ad1ff;
  --signal-bright: #86e0ff;
  --beacon: #ffc266;
  --alert: #ff8397;
  --radius: 9px;
  --monospace: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --backdrop:
    radial-gradient(880px 460px at 88% -12%, rgba(90, 209, 255, 0.1), transparent 68%),
    radial-gradient(680px 400px at 4% 112%, rgba(255, 194, 102, 0.06), transparent 70%);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background-color: var(--void);
  background-image: var(--backdrop);
  background-attachment: fixed;
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.45;
  overflow: hidden;
}

h1,
h2,
p,
ul,
form {
  margin: 0;
}

input[type="text"],
textarea {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--edge);
  border-radius: 7px;
  background-color: var(--hull);
  color: var(--ink);
  font: inherit;
}

textarea {
  resize: none;
}

input::placeholder,
textarea::placeholder {
  color: #6f809f;
}

button {
  padding: 7px 14px;
  border: 1px solid transparent;
  border-radius: 7px;
  background-color: var(--signal);
  color: var(--void);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:hover:not(:disabled) {
  background-color: var(--signal-bright);
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

input:focus-visible,
textarea:focus-visible,
button:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 1px;
}

.eyebrow {
  color: var(--signal);
  font-family: var(--monospace);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.channel {
  font-size: 19px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--ink-dim);
  font-family: var(--monospace);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.badge {
  padding: 1px 8px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  color: var(--ink);
  font-size: 11px;
  letter-spacing: 0;
}

.notice {
  min-height: 16px;
  color: var(--beacon);
  font-size: 12px;
}

body.sidebar {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 14px 14px 12px;
  border-right: 1px solid var(--edge);
}

.members-section {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
}

.members {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 2px;
  padding: 0;
  overflow-y: auto;
  list-style: none;
}

.member {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 6px;
}

.member-self {
  background-color: var(--panel);
}

.member-dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--member-color, var(--signal));
}

.member-name {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.member-marker {
  color: var(--ink-dim);
  font-size: 12px;
}

.nickname-form {
  display: flex;
  gap: 6px;
}

.callsign-section .notice {
  margin-top: 6px;
}

.reading + .reading {
  margin-top: 8px;
}

.reading-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
  color: var(--ink-dim);
  font-family: var(--monospace);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.reading-value {
  color: var(--ink);
  letter-spacing: 0;
}

.location-name {
  overflow: hidden;
  margin-bottom: 6px;
  font-weight: 650;
  letter-spacing: -0.01em;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.coordinates {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
}

.location-section .reading-label {
  margin-bottom: 0;
}

.travel-button {
  width: 100%;
  margin-top: 10px;
}

.space-view-button {
  width: 100%;
  margin-top: 10px;
}

.refuel-button {
  width: 100%;
  margin-top: 6px;
  border-color: var(--edge-strong);
  background-color: transparent;
  color: var(--ink-dim);
}

.refuel-button:hover:not(:disabled) {
  border-color: var(--signal);
  background-color: transparent;
  color: var(--ink);
}

.gauge {
  display: block;
  overflow: hidden;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background-color: var(--edge-strong);
}

.gauge-fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background-color: var(--signal);
}

.gauge[data-band="degraded"] .gauge-fill {
  background-color: var(--beacon);
}

.gauge[data-band="critical"] .gauge-fill {
  background-color: var(--alert);
}

.panel-footer {
  margin-top: auto;
}

.status {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--ink-dim);
  font-family: var(--monospace);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: currentColor;
}

.status[data-state="online"] {
  color: var(--signal);
}

.status[data-state="offline"] {
  color: var(--alert);
}

body.messages {
  position: relative;
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--edge);
}

.space-view {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  background-color: var(--void);
  background-image: var(--backdrop);
  background-attachment: fixed;
}

.space-view[hidden] {
  display: none;
}

.destinations {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 18px 18px;
  background-color: var(--void);
  background-image: var(--backdrop);
  background-attachment: fixed;
}

.destinations[hidden] {
  display: none;
}

.destinations-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.destinations-header .section-title {
  margin-bottom: 0;
}

.destinations-list {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 4px;
  padding: 0;
  overflow-y: auto;
  list-style: none;
}

.destination {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: baseline;
  gap: 10px;
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  background-color: var(--panel);
  color: var(--ink);
  font-weight: 400;
  text-align: left;
}

.destination:hover:not(:disabled) {
  border-color: var(--edge-strong);
  background-color: var(--hull);
}

.destination[data-current="true"] {
  border-color: var(--signal);
}

.destination-name {
  overflow: hidden;
  font-weight: 650;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.destination-marker {
  color: var(--ink-dim);
  font-weight: 400;
}

.destination-kind,
.destination-coordinates {
  color: var(--ink-dim);
  font-family: var(--monospace);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.destination-kind {
  text-transform: uppercase;
}

.destinations-close {
  padding: 4px 10px;
  border-color: var(--edge);
  background-color: transparent;
  color: var(--ink-dim);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.destinations-close:hover:not(:disabled) {
  border-color: var(--edge-strong);
  background-color: transparent;
  color: var(--ink);
}

.log {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px 18px;
  overflow-y: auto;
}

.message {
  padding: 8px 12px 9px;
  border: 1px solid var(--edge);
  border-left: 3px solid var(--author-color, var(--signal));
  border-radius: var(--radius);
  background-color: var(--panel);
}

.message-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 2px;
}

.message-author {
  color: var(--author-color, var(--signal));
  font-size: 13px;
  font-weight: 650;
}

.message-time {
  color: var(--ink-dim);
  font-family: var(--monospace);
  font-size: 11px;
}

.message-text {
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.transmission-notice {
  align-self: center;
  padding: 2px 10px;
  color: var(--ink-dim);
  font-family: var(--monospace);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.empty {
  margin: auto;
  color: var(--ink-dim);
  font-size: 13px;
}

.log::-webkit-scrollbar,
.members::-webkit-scrollbar,
.destinations-list::-webkit-scrollbar {
  width: 9px;
}

.log::-webkit-scrollbar-thumb,
.members::-webkit-scrollbar-thumb,
.destinations-list::-webkit-scrollbar-thumb {
  border-radius: 9px;
  background-color: var(--edge);
}

body.composer {
  padding: 10px 14px 12px;
}

.composer-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
}

.identity {
  color: var(--ink-dim);
  font-family: var(--monospace);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.identity-name {
  color: var(--signal);
}

.composer-row {
  display: flex;
  flex: 1;
  align-items: stretch;
  gap: 8px;
  min-height: 0;
}

.composer-row textarea {
  flex: 1;
}

body.unsupported {
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
}

body.unsupported h1 {
  margin-bottom: 8px;
  font-size: 20px;
}

body.unsupported p {
  color: var(--ink-dim);
}