/* =============================================================================
   ORBCOMM Manager — app.css
   Dark theme: #0d1117 / #161b22 / #1c2128 | Accent: #00d4c8
   ============================================================================= */

/* ─── Reset & Variables ───────────────────────────────────────────────────── */
:root {
  --bg:          #0d1117;
  --panel:       #161b22;
  --card:        #1c2128;
  --border:      #30363d;
  --border-soft: #21262d;
  --text:        #e6edf3;
  --text-muted:  #7d8590;
  --text-dim:    #484f58;
  --accent:      #00d4c8;
  --accent-dim:  #00a89e;
  --blue:        #388bfd;
  --green:       #3fb950;
  --yellow:      #d29922;
  --red:         #f85149;
  --orange:      #db6d28;
  --purple:      #8b949e;
  --sidebar-w:   240px;
  --topbar-h:    56px;
  --radius:      6px;
  --radius-lg:   10px;
  --shadow:      0 4px 16px rgba(0,0,0,.4);
  --font:        -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --mono:        'SF Mono', 'Fira Code', 'Consolas', 'Liberation Mono', monospace;
  --transition:  .18s ease;
}

/* ─── Light Theme ─────────────────────────────────────────────────────────── */
[data-theme="light"] {
  --bg:          #f0f2f5;
  --panel:       #ffffff;
  --card:        #ffffff;
  --border:      #d0d7de;
  --border-soft: #e4e9ef;
  --text:        #1a1f27;
  --text-muted:  #57606a;
  --text-dim:    #aab0b7;
  --accent:      #0099a8;
  --accent-dim:  #007a88;
  --blue:        #0969da;
  --green:       #1a7f37;
  --yellow:      #9a6700;
  --red:         #d1242f;
  --orange:      #bc4c00;
  --purple:      #6e40c9;
  --shadow:      0 4px 16px rgba(0,0,0,.10);
}

[data-theme="light"] body {
  background: var(--bg);
  color: var(--text);
}

[data-theme="light"] .nav-item:hover {
  background: rgba(0,0,0,.05);
}
[data-theme="light"] .nav-item.active {
  background: rgba(0,153,168,.10);
}
[data-theme="light"] tbody tr:hover {
  background: rgba(0,0,0,.03);
}
[data-theme="light"] .btn-secondary:hover:not(:disabled) {
  background: rgba(0,0,0,.05);
  border-color: var(--text-dim);
}
[data-theme="light"] .btn-ghost:hover:not(:disabled) {
  background: rgba(0,0,0,.05);
}
[data-theme="light"] .page-btn:hover {
  background: rgba(0,0,0,.05);
}
[data-theme="light"] .modal-close:hover {
  background: rgba(0,0,0,.07);
}
[data-theme="light"] .modal-backdrop {
  background: rgba(0,0,0,.4);
}
[data-theme="light"] .leaflet-container {
  background: #e8edf2;
}
[data-theme="light"] .login-wrap {
  background: radial-gradient(ellipse at 60% 30%, rgba(0,153,168,.08) 0%, transparent 60%),
              var(--bg);
}
[data-theme="light"] .login-alert {
  background: rgba(209,36,47,.08);
  border-color: rgba(209,36,47,.25);
}
[data-theme="light"] .sidebar-logo .logo-icon,
[data-theme="light"] .login-logo .logo-icon {
  color: #ffffff;
}
[data-theme="light"] .btn-primary {
  color: #ffffff;
}
[data-theme="light"] .page-btn.active {
  color: #ffffff;
}

/* ─── Theme Toggle Button ─────────────────────────────────────────────────── */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text-muted);
  cursor: pointer;
  font-size: .95rem;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--panel);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 14px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dim); text-decoration: underline; }

hr { border: none; border-top: 1px solid var(--border); margin: 1rem 0; }

/* ─── Layout ──────────────────────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 200;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-logo {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: .6rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -.3px;
  color: var(--text);
}
.sidebar-logo .logo-icon {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 900; color: #0d1117; /* overridden by light theme */
}

.sidebar-section { padding: .5rem 0; }
.sidebar-section-title {
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: .6rem 1rem .3rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .5rem 1rem;
  color: var(--text-muted);
  font-size: .875rem;
  border-radius: 0;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
  text-decoration: none;
  border-left: 3px solid transparent;
}
.nav-item:hover {
  background: rgba(255,255,255,.04);
  color: var(--text);
  text-decoration: none;
}
.nav-item.active {
  background: rgba(0,212,200,.08);
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}
.nav-item svg { width: 16px; height: 16px; opacity: .8; flex-shrink: 0; }
.nav-item.active svg { opacity: 1; }

.sidebar-bottom {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: .5rem 0;
}

/* Topbar */
.topbar {
  position: fixed;
  top: 0;
  left: var(--sidebar-w);
  right: 0;
  height: var(--topbar-h);
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 100;
  gap: 1rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .875rem;
  color: var(--text-muted);
}
.breadcrumb .crumb-sep { color: var(--text-dim); }
.breadcrumb .crumb-active { color: var(--text); font-weight: 600; }

.topbar-right {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.poller-badge {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .75rem;
  color: var(--text-muted);
  padding: .25rem .6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
}
.poller-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--text-dim);
  animation: none;
}
.poller-badge.ok .dot  { background: var(--green); animation: pulse 2s infinite; }
.poller-badge.err .dot { background: var(--red); }

.cred-select select {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: .25rem .5rem;
  font-size: .8rem;
  cursor: pointer;
}

/* Main content */
.main {
  margin-left: var(--sidebar-w);
  margin-top: var(--topbar-h);
  padding: 1.5rem;
  min-height: calc(100vh - var(--topbar-h));
  width: calc(100% - var(--sidebar-w));
}

/* ─── Cards & Stats ───────────────────────────────────────────────────────── */
.page-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  border-top: 3px solid var(--accent);
}
.stat-card.blue   { border-top-color: var(--blue); }
.stat-card.green  { border-top-color: var(--green); }
.stat-card.yellow { border-top-color: var(--yellow); }
.stat-card.red    { border-top-color: var(--red); }
.stat-card.cyan   { border-top-color: var(--accent); }

.stat-label {
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  margin-bottom: .4rem;
}
.stat-value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.stat-sub {
  font-size: .75rem;
  color: var(--text-muted);
  margin-top: .3rem;
}

/* Panel genérico */
.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.panel-header {
  padding: .875rem 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}
.panel-title {
  font-size: .9rem;
  font-weight: 600;
  color: var(--text);
}
.panel-body { padding: 1rem; }

/* ─── Tablas ──────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .8rem;
}
thead tr {
  background: var(--panel);
  border-bottom: 2px solid var(--border);
}
thead th {
  padding: .6rem .75rem;
  text-align: left;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  white-space: nowrap;
}
tbody tr {
  border-bottom: 1px solid var(--border-soft);
  transition: background var(--transition);
}
tbody tr:hover { background: rgba(255,255,255,.03); }
tbody td {
  padding: .55rem .75rem;
  color: var(--text);
  vertical-align: middle;
}
.td-mono { font-family: var(--mono); font-size: .75rem; color: var(--text-muted); }
.td-link { color: var(--accent); cursor: pointer; }
.td-link:hover { text-decoration: underline; }

/* ─── Badges ──────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .15rem .5rem;
  border-radius: 999px;
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.badge::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
}
.badge-online  { color: var(--green);  background: rgba(63,185,80,.12); }
.badge-offline { color: var(--text-muted); background: rgba(125,133,144,.1); }
.badge-error   { color: var(--red);    background: rgba(248,81,73,.12); }
.badge-warn    { color: var(--yellow); background: rgba(210,153,34,.12); }
.badge-info    { color: var(--blue);   background: rgba(56,139,253,.12); }
.badge-purple  { color: #a371f7;       background: rgba(163,113,247,.12); }

/* ─── Botones ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .4rem .85rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: .8rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), opacity var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn svg { width: 14px; height: 14px; }

.btn-primary {
  background: var(--accent);
  color: #0d1117;
  border-color: var(--accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  text-decoration: none;
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover:not(:disabled) {
  background: rgba(255,255,255,.06);
  border-color: var(--text-dim);
}
.btn-danger {
  background: transparent;
  color: var(--red);
  border-color: var(--red);
}
.btn-danger:hover:not(:disabled) {
  background: rgba(248,81,73,.12);
}
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) {
  background: rgba(255,255,255,.06);
  color: var(--text);
}
.btn-sm { padding: .25rem .55rem; font-size: .72rem; }
.btn-xs { padding: .15rem .4rem;  font-size: .68rem; }

/* ─── Formularios ─────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-label {
  display: block;
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: .3rem;
}
.form-control, .form-select, .form-textarea {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: .85rem;
  padding: .45rem .7rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,212,200,.15);
}
.form-control::placeholder { color: var(--text-dim); }
.form-textarea { resize: vertical; min-height: 80px; }
.form-select { cursor: pointer; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.form-hint { font-size: .72rem; color: var(--text-muted); margin-top: .2rem; }
.form-error { font-size: .72rem; color: var(--red); margin-top: .2rem; }

/* Input group */
.input-group { display: flex; }
.input-group .form-control { border-radius: var(--radius) 0 0 var(--radius); }
.input-group .btn { border-radius: 0 var(--radius) var(--radius) 0; }

/* Filtros barra */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: flex-end;
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.filter-bar .form-group { margin-bottom: 0; }
.filter-bar .form-label { font-size: .7rem; }

/* ─── Paginación ──────────────────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .6rem 1rem;
  font-size: .78rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: .5rem;
}
.pagination-info { }
.pagination-controls { display: flex; align-items: center; gap: .35rem; }
.page-btn {
  padding: .25rem .55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text-muted);
  font-size: .78rem;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.page-btn:hover { background: rgba(255,255,255,.06); color: var(--text); }
.page-btn.active { background: var(--accent); color: #0d1117; border-color: var(--accent); font-weight: 700; }
.page-btn:disabled { opacity: .3; cursor: not-allowed; }
.per-page-sel { display: flex; align-items: center; gap: .4rem; }
.per-page-sel select {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: .2rem .4rem;
  font-size: .78rem;
}

/* ─── Modales ─────────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(1,4,9,.75);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.modal-backdrop.open {
  opacity: 1;
  pointer-events: all;
}
.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  width: 95%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform .2s;
}
.modal-backdrop.open .modal { transform: translateY(0); }
.modal-lg { max-width: 800px; }
.modal-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title { font-size: .95rem; font-weight: 700; }
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  padding: .2rem;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}
.modal-close:hover { color: var(--text); background: rgba(255,255,255,.08); }
.modal-body { padding: 1.25rem; }
.modal-footer {
  padding: .75rem 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: .5rem;
}

/* ─── Toast ───────────────────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  pointer-events: none;
}
.toast {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: .75rem 1rem;
  box-shadow: var(--shadow);
  font-size: .82rem;
  color: var(--text);
  min-width: 260px;
  max-width: 380px;
  pointer-events: all;
  animation: slideIn .25s ease;
  display: flex;
  align-items: flex-start;
  gap: .5rem;
}
.toast.success { border-left-color: var(--green); }
.toast.error   { border-left-color: var(--red); }
.toast.warn    { border-left-color: var(--yellow); }
.toast-msg { flex: 1; }
.toast-close {
  background: none; border: none;
  color: var(--text-muted); cursor: pointer;
  font-size: .9rem; line-height: 1; margin-top: .05rem;
}

/* ─── Mapa ────────────────────────────────────────────────────────────────── */
#map { width: 100%; height: 540px; border-radius: var(--radius); }
.leaflet-container { background: #0a0e14; }
.map-popup {
  font-family: var(--font);
  font-size: .8rem;
  line-height: 1.5;
  color: #222;
}
.map-popup strong { display: block; font-size: .85rem; margin-bottom: .2rem; }

/* ─── Charts ──────────────────────────────────────────────────────────────── */
.chart-container { position: relative; }
.chart-toolbar {
  display: flex;
  gap: .35rem;
  flex-wrap: wrap;
}

/* ─── Tabs ────────────────────────────────────────────────────────────────── */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  gap: .1rem;
  margin-bottom: 1rem;
}
.tab-btn {
  padding: .5rem .9rem;
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ─── Code / Mono blocks ──────────────────────────────────────────────────── */
.code-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .75rem;
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--text-muted);
  white-space: pre-wrap;
  word-break: break-all;
  overflow-y: auto;
  max-height: 320px;
}

/* ─── Columnas configurables (toggle) ─────────────────────────────────────── */
.col-toggle-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: .5rem 0;
}
.col-toggle {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .8rem;
  cursor: pointer;
  user-select: none;
}
.col-toggle input[type=checkbox] { accent-color: var(--accent); }

/* ─── Login page ──────────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 60% 30%, rgba(0,212,200,.07) 0%, transparent 60%),
              var(--bg);
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  width: 360px;
  box-shadow: var(--shadow);
}
.login-logo {
  text-align: center;
  margin-bottom: 1.5rem;
}
.login-logo .logo-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 900; color: #0d1117; /* overridden by light theme */
  margin-bottom: .5rem;
}
.login-logo h1 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}
.login-logo p { font-size: .8rem; color: var(--text-muted); }

.lang-selector {
  display: flex;
  gap: .4rem;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.lang-btn {
  padding: .3rem .65rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text-muted);
  font-size: .75rem;
  cursor: pointer;
  text-decoration: none;
  transition: border-color var(--transition), color var(--transition);
  display: flex; align-items: center; gap: .25rem;
}
.lang-btn:hover, .lang-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}
.lang-flag { font-size: 1em; }

.login-alert {
  background: rgba(248,81,73,.1);
  border: 1px solid rgba(248,81,73,.3);
  color: var(--red);
  border-radius: var(--radius);
  padding: .5rem .75rem;
  font-size: .8rem;
  margin-bottom: 1rem;
}

/* ─── Utilidades ──────────────────────────────────────────────────────────── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: .25rem; }
.gap-2 { gap: .5rem; }
.gap-3 { gap: .75rem; }
.gap-4 { gap: 1rem; }
.mt-1 { margin-top: .25rem; }
.mt-2 { margin-top: .5rem; }
.mt-3 { margin-top: .75rem; }
.mt-4 { margin-top: 1rem; }
.mb-1 { margin-bottom: .25rem; }
.mb-2 { margin-bottom: .5rem; }
.mb-3 { margin-bottom: .75rem; }
.mb-4 { margin-bottom: 1rem; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: .78rem; }
.text-xs { font-size: .68rem; }
.text-mono { font-family: var(--mono); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-green  { color: var(--green); }
.text-red    { color: var(--red); }
.text-yellow { color: var(--yellow); }
.text-blue   { color: var(--blue); }
.text-accent { color: var(--accent); }
.w-full { width: 100%; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.hidden { display: none !important; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .65s linear infinite;
}

/* ─── Animaciones ─────────────────────────────────────────────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .35; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ─── Responsive básico ───────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform .25s; }
  .sidebar.open { transform: translateX(0); }
  .topbar { left: 0; }
  .main { margin-left: 0; width: 100%; }
  .form-row { grid-template-columns: 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .login-card { width: 95%; padding: 1.5rem 1rem; }
}

/* =============================================================================
   THEME TOGGLE — JavaScript snippet (copiar en app.js o al final del HTML)
   =============================================================================

(function () {
  const STORAGE_KEY = 'orbcomm-theme';

  // Aplicar tema guardado inmediatamente (evita parpadeo)
  const saved = localStorage.getItem(STORAGE_KEY) || 'dark';
  document.documentElement.setAttribute('data-theme', saved);

  document.addEventListener('DOMContentLoaded', function () {
    const btn = document.getElementById('theme-toggle');
    if (!btn) return;

    function updateIcon() {
      const isDark = document.documentElement.getAttribute('data-theme') === 'dark';
      btn.textContent = isDark ? '☀️' : '🌙';
      btn.title = isDark ? 'Cambiar a tema claro' : 'Cambiar a tema oscuro';
    }

    updateIcon();

    btn.addEventListener('click', function () {
      const current = document.documentElement.getAttribute('data-theme');
      const next = current === 'dark' ? 'light' : 'dark';
      document.documentElement.setAttribute('data-theme', next);
      localStorage.setItem(STORAGE_KEY, next);
      updateIcon();
    });
  });
})();

   HTML del botón (colocar dentro de .topbar-right):
   <button class="theme-toggle" id="theme-toggle" title="Cambiar tema">☀️</button>
   ============================================================================= */