/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores principais */
    --primary-green: #2E7D32;
    --secondary-green: #4CAF50;
    --light-green: #81C784;
    --neutral-gray: #757575;
    --light-gray: #F5F5F5;
    --white: #FFFFFF;
    
    /* Cores de status */
    --error-red: #D32F2F;
    --warning-yellow: #FF9800;
    --info-blue: #1976D2;
    --success-green: #388E3C;
    
    /* Tipografia */
    --font-family: 'Roboto', sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    
    /* Espaçamentos */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Breakpoints */
    --mobile-max: 768px;
    --tablet-max: 1024px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: #333;
    background-color: var(--light-gray);
}

/* Layout Principal */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-header {
    background: var(--primary-green);
    color: var(--white);
    padding: var(--spacing-md);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.app-main {
    display: flex;
    flex: 1;
}

.app-sidebar {
    width: 280px;
    background: var(--white);
    border-right: 1px solid #e0e0e0;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    position: fixed;
    top: 60px;
    left: 0;
    height: calc(100vh - 60px);
    z-index: 90;
    overflow-y: auto;
}

.app-sidebar.open {
    transform: translateX(0);
}

.app-content {
    flex: 1;
    padding: var(--spacing-lg);
    margin-left: 0;
    transition: margin-left 0.3s ease;
}

/* Navegação */
.nav-menu {
    list-style: none;
    padding: var(--spacing-md) 0;
}

.nav-item {
    margin-bottom: var(--spacing-xs);
}

.nav-link {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    color: var(--neutral-gray);
    text-decoration: none;
    transition: all 0.2s ease;
    border-radius: 8px;
    margin: 0 var(--spacing-md);
}

.nav-link:hover {
    background: var(--light-gray);
    color: var(--primary-green);
}

.nav-link.active {
    background: var(--primary-green);
    color: var(--white);
}

.nav-icon {
    width: 24px;
    height: 24px;
    margin-right: var(--spacing-md);
    text-align: center;
}

/* Cards do Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.dashboard-card {
    background: var(--white);
    border-radius: 12px;
    padding: var(--spacing-lg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 1px solid #e0e0e0;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-green);
}

.card-content {
    color: var(--neutral-gray);
}

/* Métricas */
.metrics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.metric-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-radius: 8px;
}

.metric-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-green);
    display: block;
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--neutral-gray);
    margin-top: var(--spacing-xs);
}

/* Alertas */
.alert {
    display: flex;
    align-items: flex-start;
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
}

.alert.critical {
    background: #ffebee;
    border-color: var(--error-red);
}

.alert.warning {
    background: #fff8e1;
    border-color: var(--warning-yellow);
}

.alert.info {
    background: #e3f2fd;
    border-color: var(--info-blue);
}

.alert.success {
    background: #e8f5e8;
    border-color: var(--success-green);
}

.alert-icon {
    width: 20px;
    height: 20px;
    margin-right: var(--spacing-md);
    margin-top: 2px;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.alert-description {
    font-size: var(--font-size-sm);
    color: var(--neutral-gray);
}

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 44px; /* Touch-friendly */
}

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

.btn-primary:hover {
    background: #1B5E20;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

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

/* Formulários */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: #333;
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: var(--font-size-base);
    transition: border-color 0.2s ease;
    min-height: 44px;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

/* Responsividade - Tablet */
@media (min-width: 769px) {
    .dashboard-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .app-sidebar {
        position: static;
        height: auto;
        transform: translateX(0);
    }
    
    .app-content {
        margin-left: 280px;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Responsividade - Desktop */
@media (min-width: 1025px) {
    .dashboard-grid {
        grid-template-columns: 2fr 1fr;
    }
    
    .overview-card {
        grid-row: span 2;
    }
    
    .cultures-card {
        grid-column: span 2;
    }
}

/* Animações */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

/* Estados de carregamento */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utilitários */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden { display: none; }
.visible { display: block; }

/* Modal de Logout */
#logoutModal {
    transition: opacity 0.3s ease-in-out;
}

#logoutModal .bg-white {
    transform: scale(0.9);
    transition: transform 0.3s ease-out;
}

#logoutModal .scale-100 {
    transform: scale(1);
}

/* Animações suaves para botões do modal */
#logoutModal button, #logoutModal a {
    transition: all 0.2s ease-in-out;
}

#logoutModal button:hover, #logoutModal a:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Modo escuro (opcional) */
@media (prefers-color-scheme: dark) {
    :root {
        --light-gray: #121212;
        --neutral-gray: #b0b0b0;
    }
    
    body {
        background-color: #121212;
        color: #ffffff;
    }
    
    /* Modal em modo escuro */
    #logoutModal .bg-white {
        background-color: #1f2937;
        color: #ffffff;
    }
    
    #logoutModal .bg-gray-50 {
        background-color: #111827;
    }
    
    #logoutModal .text-gray-700 {
        color: #d1d5db;
    }
    
    #logoutModal .text-gray-500 {
        color: #9ca3af;
    }
}