/* === INVERCAR ADMIN - Dark Premium === */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161f;
  --bg-card-hover: #1c1c28;
  --bg-input: #1a1a25;
  --border: rgba(255,255,255,0.06);
  --border-light: rgba(255,255,255,0.1);
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59,130,246,0.15);
  --gradient-1: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --text-primary: #f0f0f5;
  --text-secondary: #8888a0;
  --text-muted: #55556a;
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.6);
  --radius: 14px;
  --radius-sm: 10px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', -apple-system, sans-serif; background: var(--bg-primary); color: var(--text-primary); -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }

/* === LOGIN === */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}
.login-screen::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 50% 40%, var(--accent-glow) 0%, transparent 50%);
  pointer-events: none;
}
.login-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 48px 40px;
  border-radius: 20px;
  width: 100%;
  max-width: 420px;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-lg);
}
.login-box h1 { margin-bottom: 4px; }
.login-box > p { color: var(--text-secondary); margin-bottom: 28px; font-size: 0.95rem; }

/* === FORMS === */
.form-group { margin-bottom: 16px; text-align: left; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.85rem; color: var(--text-secondary); }
.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.93rem;
  transition: var(--transition);
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { min-height: 80px; resize: vertical; }
select.form-control option { background: var(--bg-card); color: var(--text-primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 15px rgba(59,130,246,0.3); }
.btn-gradient { background: var(--gradient-1); color: white; }
.btn-gradient:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(59,130,246,0.35); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #16a34a; }
.btn-danger { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.2); }
.btn-danger:hover { background: var(--danger); color: white; }
.btn-outline { background: transparent; border: 1px solid var(--border-light); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); }
.btn-sm { padding: 7px 14px; font-size: 0.82rem; }
.btn-block { width: 100%; }

/* === LAYOUT === */
#adminApp { display: flex; min-height: 100vh; }

/* === SIDEBAR === */
.admin-sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  z-index: 100;
  transition: var(--transition);
}
.sidebar-brand {
  padding: 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}
.sidebar-brand img { height: 280px; width: auto; max-height: 280px; object-fit: contain; }
.sidebar-nav { list-style: none; padding: 16px 12px; flex: 1; overflow-y: auto; }
.sidebar-nav li { margin-bottom: 2px; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 16px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.sidebar-nav a:hover { color: var(--text-primary); background: rgba(255,255,255,0.04); }
.sidebar-nav a.active { color: var(--accent); background: var(--accent-glow); font-weight: 600; }
.sidebar-nav a svg { flex-shrink: 0; opacity: 0.7; }
.sidebar-nav a:hover svg, .sidebar-nav a.active svg { opacity: 1; }
.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}
.sidebar-footer a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.sidebar-footer a svg { flex-shrink: 0; }
.sidebar-footer a:hover { color: var(--danger); }

/* === MAIN AREA === */
.admin-main { flex: 1; margin-left: 260px; min-height: 100vh; }
.admin-header {
  background: rgba(10,10,15,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}
.admin-header span { color: var(--text-secondary); font-size: 0.9rem; }
.sidebar-toggle { display: none; background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--text-primary); }
.admin-content { padding: 28px; }

/* === STAT CARDS === */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 22px;
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.stat-card:hover { border-color: rgba(59,130,246,0.15); }
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 80px; height: 80px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
.stat-card .icon { font-size: 1.5rem; margin-bottom: 10px; }
.stat-card .number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-card .label { color: var(--text-secondary); font-size: 0.82rem; margin-top: 4px; }

/* === TABLE === */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.admin-table th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: 14px 18px;
  text-align: left;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}
.admin-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.admin-table tr:hover td { background: rgba(255,255,255,0.02); }
.admin-table tr:last-child td { border-bottom: none; }

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.badge-success { background: rgba(34,197,94,0.12); color: #4ade80; border: 1px solid rgba(34,197,94,0.2); }
.badge-warning { background: rgba(245,158,11,0.12); color: #fbbf24; border: 1px solid rgba(245,158,11,0.2); }
.badge-danger { background: rgba(239,68,68,0.12); color: #f87171; border: 1px solid rgba(239,68,68,0.2); }
.badge-info { background: rgba(59,130,246,0.12); color: #60a5fa; border: 1px solid rgba(59,130,246,0.2); }

/* === MODAL === */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 36px;
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.modal h2 { margin-bottom: 24px; font-size: 1.2rem; }

/* === TOOLBAR === */
.admin-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}
.admin-toolbar h2 { font-size: 1.3rem; font-weight: 700; }

/* === SECTION CARD === */
.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  transition: var(--transition);
}
.content-card:hover { border-color: rgba(59,130,246,0.1); }
.content-card h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 16px;
}

/* === CONFIG ROW === */
.config-row {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.config-row:last-child { border-bottom: none; }
.config-row label { min-width: 130px; color: var(--text-muted); font-size: 0.85rem; font-weight: 600; }
.config-row .form-control { flex: 1; }

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-card-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .admin-sidebar {
    transform: translateX(-100%);
    width: 280px;
    box-shadow: var(--shadow-lg);
  }
  .admin-sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .sidebar-toggle { display: block; }
  .admin-content { padding: 16px; }
  .stat-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .form-row { grid-template-columns: 1fr; }
  .admin-table { font-size: 0.82rem; }
  .admin-table th, .admin-table td { padding: 10px 12px; }
  .modal { padding: 24px; margin: 12px; }
  .login-box { padding: 32px 24px; margin: 16px; }
  .config-row { flex-direction: column; align-items: stretch; gap: 6px; }
  .config-row label { min-width: auto; }
  #marcasGrid { grid-template-columns: 1fr !important; }
}

@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .admin-toolbar { flex-direction: column; align-items: stretch; }
  .admin-toolbar h2 { font-size: 1.1rem; }
}

/* === TOAST NOTIFICATION === */
.admin-toast {
  position: fixed;
  top: 24px; right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 18px 24px;
  min-width: 300px;
  max-width: 420px;
  z-index: 9999;
  box-shadow: var(--shadow-lg);
  transform: translateX(120%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}
.admin-toast.show { transform: translateX(0); }
.admin-toast .toast-content { display: flex; align-items: center; gap: 12px; }
.admin-toast .toast-icon { font-size: 1.4rem; flex-shrink: 0; }
.admin-toast .toast-text { font-size: 0.9rem; font-weight: 500; }
.admin-toast .toast-bar {
  position: absolute;
  bottom: 0; left: 0;
  height: 3px;
  border-radius: 0 0 var(--radius) var(--radius);
  animation: toastBar 3s linear forwards;
}
.admin-toast.success .toast-bar { background: var(--success); }
.admin-toast.error .toast-bar { background: var(--danger); }
.admin-toast.success { border-left: 3px solid var(--success); }
.admin-toast.error { border-left: 3px solid var(--danger); }
@keyframes toastBar { from { width: 100%; } to { width: 0%; } }

/* === DRAG DROP ZONE === */
.drop-zone {
  border: 2px dashed var(--border-light);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-input);
}
.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--accent);
  background: var(--accent-glow);
}
.drop-zone .drop-icon { font-size: 2.5rem; margin-bottom: 12px; }
.drop-zone p { color: var(--text-secondary); font-size: 0.9rem; }
.drop-zone small { color: var(--text-muted); font-size: 0.8rem; }
.drop-zone input[type="file"] { display: none; }
.preview-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.preview-thumb {
  width: 70px; height: 70px;
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}
.preview-thumb img { width: 100%; height: 100%; object-fit: cover; }
.preview-thumb .remove-preview {
  position: absolute;
  top: 2px; right: 2px;
  background: rgba(0,0,0,0.7);
  color: white;
  border: none;
  border-radius: 50%;
  width: 20px; height: 20px;
  font-size: 0.7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* === SEARCH BAR VEHICLES === */
.vehicles-search {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.vehicles-search .form-control { background: var(--bg-input); }

/* === FUNNEL === */
.funnel { display: flex; flex-direction: column; align-items: center; gap: 0; margin: 20px 0; }
.funnel-step {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 0;
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
  position: relative;
  clip-path: polygon(0 0, 100% 0, 95% 100%, 5% 100%);
  transition: var(--transition);
}
.funnel-step:hover { filter: brightness(1.15); }
.funnel-step .funnel-count {
  font-size: 1.4rem;
  font-weight: 800;
}
.funnel-step .funnel-label { font-size: 0.82rem; opacity: 0.9; }
.funnel-step .funnel-pct { font-size: 0.75rem; opacity: 0.7; }