/* =============================================
   GPS Fleet Manager - Stylesheet Principal
   ============================================= */

:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #e8f0fe;
    --success: #34a853;
    --warning: #fbbc04;
    --danger: #ea4335;
    --info: #4285f4;
    --dark: #202124;
    --gray-900: #3c4043;
    --gray-700: #5f6368;
    --gray-500: #9aa0a6;
    --gray-300: #dadce0;
    --gray-100: #f1f3f4;
    --white: #ffffff;
    --shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--gray-100);
    color: var(--dark);
    line-height: 1.6;
}

/* ===== LAYOUT ===== */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--dark);
    color: var(--white);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-header .logo {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.sidebar-header h2 {
    font-size: 16px;
    font-weight: 600;
}

.sidebar-header small {
    color: var(--gray-500);
    font-size: 11px;
}

.sidebar-nav {
    padding: 12px 0;
}

.nav-section {
    padding: 8px 20px 4px;
    font-size: 11px;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 1px;
    margin-top: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--gray-300);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border-left: 3px solid transparent;
    font-size: 14px;
}

.nav-item:hover {
    background: rgba(255,255,255,0.08);
    color: var(--white);
}

.nav-item.active {
    background: rgba(26, 115, 232, 0.15);
    color: var(--primary);
    border-left-color: var(--primary);
}

.nav-item .icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.nav-item .badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
}

/* ===== TOP BAR ===== */
.topbar {
    background: var(--white);
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.topbar-left h1 {
    font-size: 18px;
    font-weight: 600;
}

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

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--gray-700);
    position: relative;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--gray-100);
}

.btn-icon .notification-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: var(--radius);
    cursor: pointer;
}

.user-info:hover {
    background: var(--gray-100);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
}

/* ===== PAGE CONTENT ===== */
.page-content {
    padding: 24px;
    flex: 1;
}

/* ===== CARDS ===== */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-300);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

/* ===== STATS GRID ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.stat-icon.blue { background: var(--primary-light); color: var(--primary); }
.stat-icon.green { background: #e6f4ea; color: var(--success); }
.stat-icon.yellow { background: #fef7e0; color: #f9a825; }
.stat-icon.red { background: #fce8e6; color: var(--danger); }

.stat-info h4 {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.2;
}

.stat-info p {
    font-size: 13px;
    color: var(--gray-700);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}
.btn-primary:hover { background: var(--primary-dark); }

.btn-success {
    background: var(--success);
    color: white;
}
.btn-success:hover { background: #2d9249; }

.btn-danger {
    background: var(--danger);
    color: white;
}
.btn-danger:hover { background: #d33828; }

.btn-warning {
    background: var(--warning);
    color: var(--dark);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}
.btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-500);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 16px;
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--gray-700);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    transition: var(--transition);
    background: var(--white);
    color: var(--dark);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235f6368' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

/* ===== TABLE ===== */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th, table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-300);
    font-size: 14px;
}

table th {
    font-weight: 600;
    color: var(--gray-700);
    background: var(--gray-100);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

table tbody tr:hover {
    background: var(--primary-light);
}

/* ===== STATUS BADGES ===== */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-online { background: #e6f4ea; color: var(--success); }
.status-offline { background: var(--gray-100); color: var(--gray-500); }
.status-em-rota { background: #e8f0fe; color: var(--primary); }
.status-disponivel { background: #e6f4ea; color: var(--success); }
.status-manutencao { background: #fef7e0; color: #f9a825; }
.status-inativo { background: #fce8e6; color: var(--danger); }

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.dot-online { background: var(--success); }
.dot-offline { background: var(--gray-500); }
.dot-em-rota { background: var(--primary); animation: pulse 2s infinite; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ===== MAP ===== */
.map-container {
    height: calc(100vh - 180px);
    min-height: 500px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.map-container #map {
    height: 100%;
    width: 100%;
}

.map-sidebar {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 320px;
    max-height: calc(100% - 20px);
    overflow-y: auto;
    z-index: 800;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.vehicle-list-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-300);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
}

.vehicle-list-item:hover {
    background: var(--primary-light);
}

.vehicle-list-item .vehicle-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.vehicle-list-item .vehicle-details h4 {
    font-size: 14px;
    font-weight: 600;
}

.vehicle-list-item .vehicle-details p {
    font-size: 12px;
    color: var(--gray-700);
}

/* ===== MODAL ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-300);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 20px;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--gray-100);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-300);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ===== ALERTS/TOAST ===== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    border-radius: var(--radius);
    color: white;
    font-size: 14px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 300px;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-warning { background: #f9a825; color: var(--dark); }
.toast-info { background: var(--info); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ===== LOGIN PAGE ===== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}

.login-card .logo-section {
    text-align: center;
    margin-bottom: 32px;
}

.login-card .logo-section .logo-icon {
    width: 64px;
    height: 64px;
    background: var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    margin: 0 auto 12px;
}

.login-card .logo-section h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
}

.login-card .logo-section p {
    color: var(--gray-700);
    font-size: 14px;
}

.login-error {
    background: #fce8e6;
    color: var(--danger);
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 13px;
    margin-bottom: 16px;
    display: none;
}

/* ===== CLIENTE APP ===== */
.cliente-app {
    max-width: 480px;
    margin: 0 auto;
    min-height: 100vh;
    background: var(--white);
}

.cliente-header {
    background: var(--primary);
    color: white;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cliente-header h2 {
    font-size: 18px;
}

.cliente-status-bar {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--gray-100);
    font-size: 13px;
}

.cliente-map {
    height: 300px;
    background: var(--gray-300);
}

.cliente-map #clienteMap {
    height: 100%;
    width: 100%;
}

.cliente-info {
    padding: 20px;
}

.cliente-info .info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.info-item {
    background: var(--gray-100);
    padding: 12px;
    border-radius: var(--radius);
    text-align: center;
}

.info-item .value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.info-item .label {
    font-size: 12px;
    color: var(--gray-700);
}

.cliente-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0 20px 20px;
}

.btn-track {
    width: 100%;
    padding: 16px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-lg);
}

.btn-track.tracking {
    background: var(--danger);
    animation: pulseBtn 2s infinite;
}

@keyframes pulseBtn {
    0%, 100% { box-shadow: 0 0 0 0 rgba(234, 67, 53, 0.4); }
    50% { box-shadow: 0 0 0 12px rgba(234, 67, 53, 0); }
}

/* ===== ALERTS LIST ===== */
.alert-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-300);
    transition: var(--transition);
}

.alert-item:hover {
    background: var(--gray-100);
}

.alert-item.unread {
    background: var(--primary-light);
}

.alert-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.alert-icon.velocidade { background: #fce8e6; color: var(--danger); }
.alert-icon.cerca_virtual { background: #fef7e0; color: #f9a825; }
.alert-icon.parada { background: #e8f0fe; color: var(--info); }

.alert-content h4 {
    font-size: 14px;
    font-weight: 500;
}

.alert-content p {
    font-size: 12px;
    color: var(--gray-700);
}

.alert-time {
    font-size: 11px;
    color: var(--gray-500);
    white-space: nowrap;
    margin-left: auto;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .map-sidebar {
        position: static;
        width: 100%;
    }
    
    .map-container {
        height: 400px;
        min-height: 300px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== LOADING ===== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-300);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.empty-state .icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.empty-state h3 {
    font-size: 18px;
    color: var(--gray-700);
    margin-bottom: 8px;
}

/* ===== HISTORY TIMELINE ===== */
.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-300);
}

.timeline-item {
    position: relative;
    padding-bottom: 20px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid white;
    box-shadow: var(--shadow);
}

.timeline-item.completed::before {
    background: var(--success);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}