:root {
    /* Paleta Principal */
    --primary-blue: #1a237e; /* Azul Escuro Premium */
    --secondary-blue: #283593;
    --dark-blue: #0d1b2a;
    --gold: #d4af37; /* Dourado discreto */
    --gold-light: #f1c40f;
    --light-gray: #f4f6f8;
    --white: #ffffff;
    
    /* Textos */
    --text-main: #2c3e50;
    --text-muted: #7f8c8d;
    --text-light: #f4f6f8;
    
    /* Status e Alertas */
    --danger: #e74c3c;
    --success: #2ecc71;
    --warning: #f39c12;

    /* Sombras e Animações */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --primary-blue: #111b2b;
    --secondary-blue: #1c2a43;
    --dark-blue: #0a0f18;
    --light-gray: #1e293b;
    --white: #0f172a;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Segoe UI', sans-serif;
}

body {
    background-color: var(--light-gray);
    color: var(--text-main);
    overflow-x: hidden;
    transition: var(--transition);
}

/* UI Premium e Animações Suaves */
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Scrollbar customizada */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--light-gray);
}
::-webkit-scrollbar-thumb {
    background: var(--secondary-blue);
    border-radius: 4px;
}

/* ===== Layout Principal ===== */
#app-container {
    display: none; /* Escondido até login */
    width: 100vw;
    height: 100vh;
}

#app-container.active {
    display: flex;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--primary-blue);
    color: var(--white);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    z-index: 100;
}

.sidebar-header {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header i {
    color: var(--gold);
    font-size: 24px;
}

.sidebar-header h2 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.nav-menu {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.nav-item {
    padding: 14px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-weight: 500;
}

.nav-item:hover, .nav-item.active {
    color: var(--white);
    background: rgba(255,255,255,0.1);
    border-left: 4px solid var(--gold);
}

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

.sidebar-footer {
    padding: 20px 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    font-weight: bold;
}

.logout-btn {
    width: 100%;
    padding: 10px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--white);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.logout-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.topbar {
    height: 70px;
    background: var(--white);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    box-shadow: var(--shadow-sm);
    z-index: 10;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.icon-btn {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.icon-btn:hover {
    color: var(--primary-blue);
}

.badge {
    position: absolute;
    top: -5px;
    right: -8px;
    background: var(--danger);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: bold;
}

.content-area {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

.view-section {
    display: none;
    animation: fadeIn 0.4s ease;
}

.view-section.active {
    display: block;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-title {
    font-size: 24px;
    color: var(--dark-blue);
    font-weight: 700;
}

/* ===== Componentes ===== */
.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-gold {
    background: var(--gold);
    color: var(--dark-blue);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-gold:hover {
    background: var(--gold-light);
    transform: translateY(-2px);
}

/* Cards do Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-card.danger { border-left-color: var(--danger); }
.stat-card.warning { border-left-color: var(--warning); }
.stat-card.success { border-left-color: var(--success); }
.stat-card.primary { border-left-color: var(--primary-blue); }

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.stat-card.danger .stat-icon { background: rgba(231, 76, 60, 0.1); color: var(--danger); }
.stat-card.warning .stat-icon { background: rgba(243, 156, 18, 0.1); color: var(--warning); }
.stat-card.success .stat-icon { background: rgba(46, 204, 113, 0.1); color: var(--success); }
.stat-card.primary .stat-icon { background: rgba(26, 35, 126, 0.1); color: var(--primary-blue); }

.stat-details h3 {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 5px;
}

.stat-details p {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-main);
}

/* Gráficos e Tabelas */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-bottom: 30px;
}

.panel {
    background: var(--white);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

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

.panel-title {
    font-size: 18px;
    color: var(--dark-blue);
    font-weight: 600;
}

/* Tabelas Premium */
.table-responsive {
    overflow-x: auto;
}

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

.table th, .table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    color: var(--text-main);
    font-size: 15px;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background-color: var(--light-gray);
}

.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
}

.status-alta { background: rgba(231,76,60,0.1); color: var(--danger); }
.status-media { background: rgba(243,156,18,0.1); color: var(--warning); }
.status-baixa { background: rgba(46,204,113,0.1); color: var(--success); }
.status-pendente { background: rgba(243,156,18,0.1); color: var(--warning); }
.status-resolvido { background: rgba(46,204,113,0.1); color: var(--success); }

/* Login Screen */
#login-screen {
    height: 100vh;
    width: 100vw;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

.login-card {
    background: var(--white);
    width: 100%;
    max-width: 400px;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--gold);
}

.login-logo {
    font-size: 48px;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.login-title {
    font-size: 24px;
    color: var(--dark-blue);
    font-weight: 700;
    margin-bottom: 5px;
}

.login-subtitle {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-main);
    font-weight: 500;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 15px;
    transition: var(--transition);
    background: var(--light-gray);
    color: var(--text-main);
}

.form-control:focus {
    border-color: var(--primary-blue);
    outline: none;
    box-shadow: 0 0 0 3px rgba(26,35,126,0.1);
    background: var(--white);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 10px;
}

.login-btn:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
}

/* Modais e Formulários */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--white);
    width: 100%;
    max-width: 600px;
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: transform 0.3s;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.close-modal {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* QR Code Grid */
.qr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.qr-card {
    background: var(--white);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid #eee;
}

.qr-card h4 {
    margin-bottom: 15px;
    color: var(--dark-blue);
}

.qr-image-container {
    background: #fff;
    padding: 10px;
    border-radius: 8px;
    display: inline-block;
    margin-bottom: 15px;
}

/* Chat Interno */
.chat-container {
    display: flex;
    height: calc(100vh - 180px);
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.chat-sidebar {
    width: 250px;
    border-right: 1px solid #eee;
    background: var(--light-gray);
}

.chat-list {
    overflow-y: auto;
    height: 100%;
}

.chat-user {
    padding: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid #eee;
    cursor: pointer;
    transition: var(--transition);
}

.chat-user:hover, .chat-user.active {
    background: var(--white);
    border-left: 3px solid var(--primary-blue);
}

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: #f8f9fa;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
}

.message.received {
    background: var(--white);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.message.sent {
    background: var(--primary-blue);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.chat-input {
    padding: 20px;
    background: var(--white);
    border-top: 1px solid #eee;
    display: flex;
    gap: 10px;
}

/* Checklist de Ronda */
.checklist-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: var(--light-gray);
    border-radius: 8px;
    margin-bottom: 10px;
}

.checklist-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary-blue);
}

/* Mapa Interativo Placeholder */
.map-container {
    background: var(--white);
    border-radius: 16px;
    padding: 20px;
    height: 500px;
    position: relative;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: radial-gradient(#ddd 1px, transparent 0);
    background-size: 20px 20px;
}

.map-sector {
    position: absolute;
    padding: 10px 20px;
    border-radius: 8px;
    background: var(--primary-blue);
    color: white;
    font-weight: bold;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.map-sector:hover {
    transform: scale(1.05);
}

.map-sector.critical {
    background: var(--danger);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(231,76,60,0.7); }
    70% { box-shadow: 0 0 0 10px rgba(231,76,60,0); }
    100% { box-shadow: 0 0 0 0 rgba(231,76,60,0); }
}

/* Responsividade Mobile-First */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -260px;
        height: 100vh;
    }
    
    .sidebar.mobile-open {
        left: 0;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .chat-container {
        flex-direction: column;
    }

    .chat-sidebar {
        width: 100%;
        height: 150px;
        border-right: none;
        border-bottom: 1px solid #eee;
    }
}

/* AI Floating Action Button */
.ai-fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--dark-blue);
    color: var(--gold);
    border: 2px solid var(--gold);
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.ai-fab:hover {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 15px 35px rgba(212, 175, 55, 0.4);
}