/* ── Reset y variables ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0f172a;
  --surface:     #1e293b;
  --surface-2:   #334155;
  --surface-3:   #475569;
  --accent:      #3b82f6;
  --accent-dark: #2563eb;
  --success:     #22c55e;
  --warning:     #f59e0b;
  --danger:      #ef4444;
  --text:        #f1f5f9;
  --text-muted:  #94a3b8;
  --border:      #334155;
  --radius:      10px;
  --radius-sm:   6px;
  --shadow:      0 8px 32px rgba(0, 0, 0, .5);
  --navbar-h:    52px;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

/* ── Utilidades ──────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Login ───────────────────────────────────────────────────────────────── */
#login-screen {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 50% 0%, #1e3a5f 0%, var(--bg) 70%);
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow);
}

.login-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  margin-bottom: 32px;
}

.login-logo h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.5px;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color .15s;
}

.field input:focus {
  border-color: var(--accent);
}

.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 11px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  transition: background .15s;
}

.btn-primary:hover { background: var(--accent-dark); }
.btn-primary:disabled { opacity: .6; cursor: not-allowed; }

.btn-spinner { display: inline-block; animation: spin .7s linear infinite; }

.error-msg {
  margin-top: 12px;
  color: var(--danger);
  font-size: 13px;
  text-align: center;
}

.error-msg.ok { color: var(--success); }

.auth-switch {
  margin-top: 16px;
  display: flex;
  gap: 8px;
  justify-content: center;
  font-size: 12px;
  color: var(--text-muted);
}

.auth-switch a { color: var(--text-muted); text-decoration: none; }
.auth-switch a:hover { color: var(--accent); }

.store-links {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: center;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 12px;
  font-weight: 500;
  transition: color .15s, border-color .15s;
}
.store-badge:hover { color: var(--accent); border-color: var(--accent); }

/* ── Navbar ──────────────────────────────────────────────────────────────── */
.navbar {
  height: var(--navbar-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  position: relative;
  z-index: 1000;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 15px;
  color: var(--accent);
  flex-shrink: 0;
}

.nav-center {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  overflow: hidden;
}

#nav-username {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.geo-badge {
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 20px;
  background: var(--surface-2);
  flex-shrink: 0;
}

.geo-badge.ok    { background: #14532d; color: #86efac; }
.geo-badge.warn  { background: #451a03; color: #fcd34d; }
.geo-badge.error { background: #450a0a; color: #fca5a5; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  padding: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: color .15s, border-color .15s, background .15s;
}

.icon-btn:hover {
  color: var(--text);
  border-color: var(--surface-3);
  background: var(--surface-2);
}

.icon-btn.spinning svg { animation: spin .7s linear infinite; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  padding: 5px 12px;
  font-size: 13px;
  cursor: pointer;
  transition: color .15s, border-color .15s;
}

.btn-outline:hover { color: var(--danger); border-color: var(--danger); }

/* ── Layout principal ────────────────────────────────────────────────────── */
.layout {
  display: flex;
  height: calc(100vh - var(--navbar-h));
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 10px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.badge {
  background: var(--accent);
  color: #fff;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  padding: 1px 7px;
  min-width: 22px;
  text-align: center;
}

.refresh-indicator {
  font-size: 11px;
  color: var(--text-muted);
  padding: 6px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.spinner-small { display: inline-block; animation: spin .7s linear infinite; }

.contact-list {
  flex: 1;
  overflow-y: auto;
  list-style: none;
  padding: 6px 0;
}

.contact-list::-webkit-scrollbar { width: 4px; }
.contact-list::-webkit-scrollbar-track { background: transparent; }
.contact-list::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 2px; }

.contact-separator {
  padding: 10px 16px 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--surface-3);
}

.contact-empty {
  padding: 24px 16px;
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  margin: 0 6px 2px;
  transition: background .12s;
}

.contact-item:hover    { background: var(--surface-2); }
.contact-item.selected { background: var(--surface-2); border-left: 3px solid var(--accent); padding-left: 11px; }

.contact-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  flex-shrink: 0;
  text-transform: uppercase;
}

.contact-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.contact-info {
  flex: 1;
  overflow: hidden;
}

.contact-name {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.contact-dot.online  { background: var(--success); }
.contact-dot.recent  { background: var(--warning); }
.contact-dot.offline { background: var(--surface-3); }

.contact-actions {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity .15s;
  margin-left: 4px;
}
.contact-item:hover .contact-actions { opacity: 1; }

.contact-action-btn {
  width: 24px;
  height: 24px;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: background .1s, color .1s;
  padding: 0;
}
.contact-action-btn:hover { background: var(--surface-3); color: var(--text); }
.contact-action-btn.danger:hover { color: var(--danger); }

.sidebar-footer {
  padding: 8px 14px;
  font-size: 11px;
  color: var(--surface-3);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

/* ── Mapa ────────────────────────────────────────────────────────────────── */
#map {
  flex: 1;
  min-width: 0;
  background: #1a2744;
}

/* ── Markers Leaflet ─────────────────────────────────────────────────────── */
.user-marker-wrap {
  position: relative;
  width: 20px;
  height: 20px;
}

.user-dot {
  position: absolute;
  inset: 0;
  background: #3b82f6;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px rgba(59,130,246,.4);
  z-index: 2;
}

.user-pulse {
  position: absolute;
  inset: -6px;
  background: rgba(59, 130, 246, .35);
  border-radius: 50%;
  animation: pulse 2s ease-out infinite;
  z-index: 1;
}

.contact-marker-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2.5px solid rgba(255,255,255,.8);
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.4);
  cursor: pointer;
  text-transform: uppercase;
}

/* ── Popup Leaflet ───────────────────────────────────────────────────────── */
.leaflet-popup-content-wrapper {
  background: var(--surface) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  box-shadow: var(--shadow) !important;
}

.leaflet-popup-tip { background: var(--surface) !important; }

.leaflet-popup-content { margin: 10px 14px !important; }

.popup-name {
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 4px;
}

.popup-time {
  font-size: 11px;
  color: var(--text-muted);
}

.popup-coords {
  font-size: 11px;
  color: var(--surface-3);
  margin-top: 3px;
}

/* ── Toast ───────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface-2);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 13px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  z-index: 9999;
  pointer-events: none;
  transition: opacity .3s;
}

.toast.error { background: #450a0a; border-color: #7f1d1d; color: #fca5a5; }

/* ── Animaciones ─────────────────────────────────────────────────────────── */
@keyframes spin  { to { transform: rotate(360deg); } }
@keyframes pulse { 0% { transform: scale(.8); opacity: .8; } 100% { transform: scale(2.2); opacity: 0; } }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .layout { flex-direction: column-reverse; }

  .sidebar {
    width: 100%;
    height: 220px;
    border-right: none;
    border-top: 1px solid var(--border);
  }

  .contact-list { display: flex; flex-direction: row; padding: 6px; gap: 6px; overflow-x: auto; overflow-y: hidden; }
  .contact-item { flex-direction: column; text-align: center; min-width: 72px; padding: 8px 6px; gap: 6px; margin: 0; }
  .contact-info { display: none; }
  .contact-dot  { display: none; }
  .sidebar-footer { display: none; }
}

/* ── Modal de emparejamiento ─────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 16px;
}

.modal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 14px;
  font-weight: 700;
}

.modal-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
  transition: color .15s, border-color .15s;
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content {
  padding: 20px 16px;
}

.modal-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.qr-box {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  min-height: 240px;
}

.qr-box canvas,
.qr-box img { border-radius: 4px; }

.status-msg {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.status-msg.ok  { background: #14532d; color: #86efac; }
.status-msg.err { background: #450a0a; color: #fca5a5; }