:root {
  --navy: #0b2545;
  --navy-light: #13315c;
  --accent: #1f9d55;
  --accent-blue: #2f7dd1;
  --danger: #c0392b;
  --warning: #b45309;
  --bg: #f4f6f8;
  --border: #d9dee3;
  --text: #1b2733;
  --text-muted: #64748b;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  color: var(--text);
  background: var(--bg);
}

#topbar {
  height: 52px;
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 1000;
  position: relative;
}

.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 16px; }
.brand-mark { font-size: 20px; }

#statusRow { display: flex; gap: 8px; }

.status-pill {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
}
.status-connecting { background: #7a5c00; }
.status-connected { background: #1f9d55; }
.status-disconnected { background: var(--danger); }

.admin-link {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.25);
}
.admin-link:hover { background: rgba(255,255,255,0.22); }

#layout {
  display: flex;
  height: calc(100% - 52px);
}

#sidebar {
  width: 340px;
  flex-shrink: 0;
  background: #fff;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}
.tab-btn {
  flex: 1;
  padding: 12px 8px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
}
.tab-btn.active {
  color: var(--navy);
  border-bottom-color: var(--accent-blue);
}

.tab-panel { display: none; flex: 1; overflow-y: auto; padding: 10px 12px; }
.tab-panel.active { display: flex; flex-direction: column; }

.panel-hint { font-size: 11.5px; color: var(--text-muted); margin-bottom: 8px; line-height: 1.4; }

#searchInput, #liveSearchInput, #vesselFilter {
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 8px;
}
#searchInput:focus, #liveSearchInput:focus { outline: 2px solid var(--accent-blue); outline-offset: -1px; }

.coord-format-select {
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.25);
}
.coord-format-select option { color: var(--text); }

.vessel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  flex: 1;
}

.vessel-item {
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 6px;
  cursor: pointer;
  transition: background 0.1s;
}
.vessel-item:hover { background: #eef3f8; border-color: var(--accent-blue); }

.vessel-item .vname { font-weight: 600; font-size: 13.5px; }
.vessel-item .vmeta { font-size: 11.5px; color: var(--text-muted); margin-top: 2px; }
.vessel-item .vbadge {
  display: inline-block;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  margin-left: 6px;
}
.vessel-item .vbadge.expired { background: #94a3b8; }
.vessel-item .vbadge.distress { background: var(--danger); }
.vessel-item .vbadge.geofence { background: var(--warning); }

.empty-note { color: var(--text-muted); font-size: 12.5px; padding: 12px 4px; }

.detail-panel {
  position: absolute;
  inset: 0;
  background: #fff;
  display: flex;
  flex-direction: column;
  padding: 12px;
  overflow-y: auto;
}
.detail-panel.hidden { display: none; }

.back-btn {
  align-self: flex-start;
  border: none;
  background: none;
  color: var(--accent-blue);
  font-size: 13px;
  cursor: pointer;
  margin-bottom: 10px;
  padding: 4px 0;
}

.detail-title { font-size: 18px; font-weight: 700; margin: 0 0 2px; }
.detail-sub { color: var(--text-muted); font-size: 12.5px; margin-bottom: 12px; }

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
  font-size: 12.5px;
  margin-bottom: 14px;
}
.detail-grid .label { color: var(--text-muted); }
.detail-grid .value { font-weight: 600; }

.section-title {
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  margin: 14px 0 8px;
  font-weight: 700;
}

.track-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 6px;
  font-size: 12.5px;
}
.track-item button {
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
  background: #fff;
  border-radius: 5px;
  padding: 4px 8px;
  font-size: 11.5px;
  cursor: pointer;
}
.track-item button:hover { background: var(--accent-blue); color: #fff; }
.track-item button.active-track { border-color: var(--accent); color: var(--accent); }

#map { flex: 1; position: relative; }

.vessel-icon {
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.4));
}
.vessel-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
}
.vessel-glyph { flex-shrink: 0; }
.vessel-label {
  margin-top: 2px;
  font-size: 10px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy);
  background: rgba(255, 255, 255, 0.82);
  padding: 0px 4px;
  border-radius: 3px;
  white-space: nowrap;
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.vessel-label.selected {
  background: var(--navy);
  color: #fff;
}

.vessel-popup .vname { font-weight: 700; font-size: 13px; margin-bottom: 4px; }
.vessel-popup table { font-size: 11.5px; border-collapse: collapse; }
.vessel-popup td { padding: 1px 6px 1px 0; vertical-align: top; }
.vessel-popup td.label { color: var(--text-muted); white-space: nowrap; }
.vessel-popup .popup-link {
  display: inline-block;
  margin-top: 6px;
  font-size: 11.5px;
  color: var(--accent-blue);
  cursor: pointer;
}

.leaflet-control-layers-toggle { width: 32px !important; height: 32px !important; }

/* ---------- buttons ---------- */

.btn-primary, .btn-secondary {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary { background: var(--accent-blue); color: #fff; }
.btn-primary:hover { background: #1f5fa8; }
.btn-secondary { background: #fff; border-color: var(--border); color: var(--text); }
.btn-secondary:hover { background: #f4f6f8; }
.full-width { width: 100%; margin-bottom: 10px; }

/* ---------- modal (add/edit marker) ---------- */

.modal {
  position: fixed;
  inset: 0;
  background: rgba(11,37,69,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}
.modal.hidden { display: none; }
.modal-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  width: 360px;
  max-width: calc(100vw - 40px);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
}
.modal-card h3 { margin: 0 0 16px; font-size: 16px; }
.modal-card form { display: flex; flex-direction: column; gap: 10px; }
.modal-card label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; font-weight: 600; color: var(--text-muted); }
.modal-card input, .modal-card select, .modal-card textarea {
  padding: 8px 9px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 6px; }
.login-error {
  background: #fdecea;
  color: var(--danger);
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 12.5px;
}

/* ---------- custom markers ---------- */

.custom-marker-icon { filter: drop-shadow(0 1px 2px rgba(0,0,0,0.4)); cursor: pointer; }
.marker-popup .mname { font-weight: 700; font-size: 13px; margin-bottom: 4px; }
.marker-popup table { font-size: 11.5px; border-collapse: collapse; }
.marker-popup td { padding: 1px 6px 1px 0; vertical-align: top; }
.marker-popup td.label { color: var(--text-muted); white-space: nowrap; }
.marker-popup .popup-actions { margin-top: 6px; display: flex; gap: 8px; }
.marker-popup .popup-actions a { font-size: 11.5px; color: var(--accent-blue); cursor: pointer; }

.context-popup { font-size: 12.5px; }
.context-popup .coord-line { font-weight: 600; margin-bottom: 6px; }
.context-popup button {
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
  background: #fff;
  border-radius: 5px;
  padding: 5px 10px;
  font-size: 11.5px;
  cursor: pointer;
}
.context-popup button:hover { background: var(--accent-blue); color: #fff; }

/* ---------- alerts ---------- */

.alert-bell {
  cursor: pointer;
  border: none;
  position: relative;
  font-size: 13px;
}
.alert-bell-count {
  display: inline-block;
  background: var(--danger);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  border-radius: 999px;
  padding: 0 5px;
  margin-left: 2px;
}

.alert-toasts {
  position: fixed;
  top: 62px;
  right: 12px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 300px;
  max-width: calc(100vw - 24px);
  pointer-events: none;
}
.alert-toast {
  background: #fff;
  border-left: 4px solid var(--accent-blue);
  border-radius: 6px;
  box-shadow: 0 6px 20px rgba(11,37,69,0.22);
  padding: 10px 12px;
  cursor: pointer;
  pointer-events: auto;
  animation: alertToastIn 0.18s ease-out;
}
.alert-toast-geofence { border-left-color: var(--warning); }
.alert-toast-distress { border-left-color: var(--danger); background: #fff5f4; }
.alert-toast-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.alert-toast-kind { font-size: 11px; font-weight: 700; letter-spacing: 0.03em; color: var(--text-muted); }
.alert-toast-distress .alert-toast-kind { color: var(--danger); }
.alert-toast-geofence .alert-toast-kind { color: var(--warning); }
.alert-toast-close { border: none; background: none; font-size: 15px; line-height: 1; cursor: pointer; color: var(--text-muted); }
.alert-toast-msg { font-size: 12.5px; }
.alert-toast-time { font-size: 10.5px; color: var(--text-muted); margin-top: 4px; }
@keyframes alertToastIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.alert-panel {
  position: fixed;
  top: 60px;
  right: 12px;
  width: 320px;
  max-width: calc(100vw - 24px);
  max-height: 70vh;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 12px 30px rgba(11,37,69,0.25);
  z-index: 2500;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.alert-panel.hidden { display: none; }
.alert-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  font-weight: 700;
}
.alert-panel .vessel-list { padding: 8px; max-height: 60vh; }

.vessel-distress-pulse .vessel-glyph {
  animation: distressPulse 1s ease-in-out infinite;
}
@keyframes distressPulse {
  0%, 100% { filter: drop-shadow(0 0 2px var(--danger)); }
  50% { filter: drop-shadow(0 0 10px var(--danger)); }
}