:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --bg-card: rgba(23, 32, 54, 0.7);
  --bg-card-hover: rgba(30, 42, 70, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-blue: #3b82f6;
  --accent-blue-glow: rgba(59, 130, 246, 0.35);
  --accent-green: #10b981;
  --accent-green-glow: rgba(16, 185, 129, 0.4);
  --accent-amber: #f59e0b;
  --accent-amber-glow: rgba(245, 158, 11, 0.4);
  --accent-red: #ef4444;
  --accent-red-glow: rgba(239, 68, 68, 0.4);
  --accent-purple: #8b5cf6;
  --accent-purple-glow: rgba(139, 92, 246, 0.4);

  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 20% 15%, rgba(59, 130, 246, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 80% 85%, rgba(16, 185, 129, 0.08) 0%, transparent 40%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

#app {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  padding: 16px;
}

.auth-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 0;
}

/* Header & Navbar */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-blue), #1d4ed8);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
  box-shadow: 0 0 16px var(--accent-blue-glow);
}

.brand-text h1 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-text p {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.header-user-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-badge {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.user-badge .user-name {
  font-size: 0.85rem;
  font-weight: 600;
}

.user-badge .user-role {
  font-size: 0.7rem;
  padding: 1px 8px;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
  font-weight: 600;
  text-transform: uppercase;
}

.btn-icon {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Nav Tabs */
.nav-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  background: var(--bg-card);
  padding: 6px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow-x: auto;
}

.nav-tab {
  flex: 1;
  min-width: 110px;
  padding: 10px 14px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
}

.nav-tab.active {
  background: var(--accent-blue);
  color: #fff;
  box-shadow: 0 4px 12px var(--accent-blue-glow);
}

/* Cards */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ==========================================================================
   Controle Remoto RF 4 Botões (Abre, Fecha, Trava, Destrava)
   ========================================================================== */

.rf-remote-frame {
  max-width: 480px;
  width: 100%;
  margin: 0 auto;
  background: rgba(15, 23, 42, 0.7);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
  padding: 28px 20px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), inset 0 1px 2px rgba(255, 255, 255, 0.15);
  position: relative;
}

.rf-antenna-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.rf-led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #334155;
  transition: var(--transition);
}

.rf-led.active {
  background: #34d399;
  box-shadow: 0 0 12px #34d399;
}

/* Grid com os 4 Botões */
.rf-buttons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.rf-cmd-btn {
  aspect-ratio: 1 / 1;
  min-height: 130px;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(255, 255, 255, 0.1);
  background: var(--bg-secondary);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

.rf-cmd-btn:hover:not(:disabled) {
  transform: translateY(-3px) scale(1.02);
}

.rf-cmd-btn:active:not(:disabled) {
  transform: translateY(2px) scale(0.97);
}

.rf-cmd-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  filter: grayscale(0.5);
}

/* Botão ABRIR */
.btn-rf-abre {
  background: linear-gradient(145deg, rgba(16, 185, 129, 0.15), rgba(5, 150, 105, 0.3));
  border-color: rgba(16, 185, 129, 0.4);
}
.btn-rf-abre:hover:not(:disabled) {
  box-shadow: 0 0 30px var(--accent-green-glow);
  border-color: var(--accent-green);
}
.btn-rf-abre .rf-btn-icon { color: #34d399; }

/* Botão FECHAR */
.btn-rf-fecha {
  background: linear-gradient(145deg, rgba(239, 68, 68, 0.15), rgba(220, 38, 38, 0.3));
  border-color: rgba(239, 68, 68, 0.4);
}
.btn-rf-fecha:hover:not(:disabled) {
  box-shadow: 0 0 30px var(--accent-red-glow);
  border-color: var(--accent-red);
}
.btn-rf-fecha .rf-btn-icon { color: #f87171; }

/* Botão TRAVAR */
.btn-rf-trava {
  background: linear-gradient(145deg, rgba(245, 158, 11, 0.15), rgba(217, 119, 6, 0.3));
  border-color: rgba(245, 158, 11, 0.4);
}
.btn-rf-trava:hover:not(:disabled) {
  box-shadow: 0 0 30px var(--accent-amber-glow);
  border-color: var(--accent-amber);
}
.btn-rf-trava .rf-btn-icon { color: #fbbf24; }

/* Botão DESTRAVAR */
.btn-rf-destrava {
  background: linear-gradient(145deg, rgba(59, 130, 246, 0.15), rgba(37, 99, 235, 0.3));
  border-color: rgba(59, 130, 246, 0.4);
}
.btn-rf-destrava:hover:not(:disabled) {
  box-shadow: 0 0 30px var(--accent-blue-glow);
  border-color: var(--accent-blue);
}
.btn-rf-destrava .rf-btn-icon { color: #60a5fa; }

.rf-btn-icon {
  font-size: 2.2rem;
  line-height: 1;
}

.rf-btn-title {
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.rf-btn-sub {
  font-size: 0.68rem;
  color: var(--text-secondary);
}

/* Status Pill */
.status-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
  transition: var(--transition);
}

.status-badge-pill.status-allowed {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.status-badge-pill.status-blocked {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
}

.status-badge-pill.status-cooldown {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fbbf24;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
  display: inline-block;
  box-shadow: 0 0 10px currentColor;
}

.pulse-animation {
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.gate-schedule-info {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  max-width: 480px;
  width: 100%;
  margin: 0 auto;
  text-align: center;
}

.gate-schedule-info p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.gate-schedule-info strong {
  color: var(--text-primary);
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-blue-glow);
  background: rgba(15, 23, 42, 0.9);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-blue);
  color: #fff;
  box-shadow: 0 4px 12px var(--accent-blue-glow);
}

.btn-primary:hover:not(:disabled) {
  background: #2563eb;
  transform: translateY(-1px);
}

.btn-success {
  background: var(--accent-green);
  color: #fff;
  box-shadow: 0 4px 12px var(--accent-green-glow);
}

.btn-danger {
  background: var(--accent-red);
  color: #fff;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.15);
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Day Selector Chips */
.weekday-selector {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.day-chip {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: var(--transition);
}

.day-chip:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.day-chip.selected {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
  box-shadow: 0 2px 8px var(--accent-blue-glow);
}

/* Switch */
.switch-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: #334155;
  transition: .3s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-blue);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.data-table th {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  white-space: nowrap;
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-success { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }
.badge-info { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 24px;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

/* Toasts */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
  max-width: 360px;
  width: calc(100% - 40px);
}

.toast {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 12px;
  backdrop-filter: blur(12px);
}

.toast-success { border-left: 4px solid var(--accent-green); }
.toast-error { border-left: 4px solid var(--accent-red); }
.toast-warning { border-left: 4px solid var(--accent-amber); }
.toast-info { border-left: 4px solid var(--accent-blue); }

.app-footer {
  text-align: center;
  padding: 20px 0 10px;
  font-size: 0.78rem;
  color: var(--text-muted);
}