:root {
  --bg: #0f1216;
  --panel: #181d24;
  --panel-2: #1f2630;
  --border: #2a323d;
  --text: #e6e9ee;
  --muted: #8a94a3;
  --accent: #5b9dff;
  --accent-2: #7c5bff;
  --ok: #3ddc97;
  --in: #3ddc97;
  --out: #5b9dff;
  --danger: #ff6b6b;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

code {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.85em;
  background: rgba(255, 255, 255, 0.06);
  padding: 1px 5px;
  border-radius: 4px;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 16px 60px;
}

/* ---------- header ---------- */
.header {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 1px solid var(--border);
  padding-bottom: 18px;
  margin-bottom: 18px;
}

.header-title h1 {
  margin: 0 0 4px;
  font-size: 1.5rem;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  max-width: 52ch;
  font-size: 0.9rem;
}

.identity {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.field-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  text-align: right;
}

.name-input {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 1rem;
  min-width: 180px;
  text-align: right;
}

.name-input:focus {
  outline: none;
  border-color: var(--accent);
}

.identity-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  justify-content: flex-end;
  font-size: 0.8rem;
  color: var(--muted);
}

.dot::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  margin-right: 6px;
}

.dot.ok::before {
  background: var(--ok);
}

/* ---------- layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 16px;
  align-items: start;
}

@media (max-width: 760px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .identity {
    align-items: flex-start;
  }
  .identity-meta,
  .field-label,
  .name-input {
    text-align: left;
    justify-content: flex-start;
  }
}

.col-main {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

/* ---------- panel ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
}

.panel-title {
  margin: 0 0 12px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ---------- peer list ---------- */
.peer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.peer {
  width: 100%;
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 4px 10px;
  background: var(--panel-2);
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 8px 10px;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.12s, background 0.12s;
}

.peer:hover {
  border-color: var(--border);
}

.peer.selected {
  border-color: var(--accent);
  background: rgba(91, 157, 255, 0.12);
}

.peer-avatar {
  grid-row: span 2;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  font-weight: 700;
  font-size: 0.8rem;
}

.peer.broadcast .peer-avatar {
  background: linear-gradient(135deg, #ffae57, #ff6b6b);
}

.peer-name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.peer-sub {
  grid-column: 2 / 4;
  font-size: 0.75rem;
  color: var(--muted);
}

.empty {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 10px 2px 2px;
}

/* ---------- composer ---------- */
.composer-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.text-input {
  flex: 1;
  min-width: 160px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.95rem;
}

.text-input:focus {
  outline: none;
  border-color: var(--accent);
}

.file-input {
  flex: 1;
  min-width: 160px;
  color: var(--muted);
  font-size: 0.85rem;
}

.file-input::file-selector-button {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 12px;
  margin-right: 10px;
  cursor: pointer;
}

.select {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
}

.btn {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 0.9rem;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.12s, background 0.12s, opacity 0.12s;
}

.btn:hover:not(:disabled) {
  border-color: var(--accent);
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #08121f;
  font-weight: 600;
}

.btn.primary:hover:not(:disabled) {
  background: #6fabff;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn.tiny {
  padding: 3px 10px;
  font-size: 0.75rem;
  margin-left: auto;
}

.to-badge {
  color: var(--accent);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 600;
}

.divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 14px 0 12px;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.hint {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 4px 2px 12px;
}

.hint.subtle {
  font-size: 0.78rem;
  opacity: 0.8;
  margin-bottom: 0;
}

/* ---------- transfers ---------- */
.transfer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.transfer-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  margin-bottom: 5px;
}

.transfer-name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 40%;
}

.transfer-meta {
  color: var(--muted);
  font-size: 0.8rem;
}

.transfer-pct {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  font-weight: 600;
}

.progress {
  height: 8px;
  background: var(--panel-2);
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.15s ease;
}

.progress-bar.done {
  background: var(--ok);
}

/* ---------- log ---------- */
.log-panel {
  display: flex;
  flex-direction: column;
}

.log {
  display: flex;
  flex-direction: column;
  gap: 7px;
  max-height: 360px;
  overflow-y: auto;
  padding-right: 4px;
}

.log-row {
  display: flex;
  gap: 10px;
  font-size: 0.88rem;
  align-items: baseline;
}

.log-time {
  color: var(--muted);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  padding-top: 1px;
}

.log-body {
  min-width: 0;
}

.log-row.system .log-body {
  color: var(--muted);
  font-style: italic;
}

.log-who {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-right: 8px;
}

.log-row.in .log-who {
  color: var(--in);
}

.log-row.out .log-who {
  color: var(--out);
}

.log-text {
  word-break: break-word;
}

.log-binary {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.dl {
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1px 8px;
  font-size: 0.78rem;
}

.dl:hover {
  border-color: var(--accent);
}

.sha {
  color: var(--muted);
}