/* ========================================
   RESET E VARIÁVEIS CSS
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores Principais - Modo Claro */
    --primary-color: #4CAF50;
    --primary-dark: #388E3C;
    --secondary-color: #2196F3;
    --success-color: #4CAF50;
    --danger-color: #F44336;
    --warning-color: #FF9800;
    --info-color: #2196F3;
    
    /* Backgrounds */
    --bg-primary: #F5F5F5;
    --bg-secondary: #FFFFFF;
    --bg-card: #FFFFFF;
    
    /* Textos */
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-light: #FFFFFF;
    
    /* Bordas */
    --border-color: #E0E0E0;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
    
    /* Espaçamentos */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Transições */
    --transition: all 0.3s ease;
}

/* Modo Escuro */
body.dark-mode {
    --bg-primary: #121212;
    --bg-secondary: #1E1E1E;
    --bg-card: #2C2C2C;
    --text-primary: #E0E0E0;
    --text-secondary: #B0B0B0;
    --border-color: #404040;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.5);
}

/* ========================================
   ESTILOS GLOBAIS
   ======================================== */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

/* ========================================
   HEADER
   ======================================== */
.app-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-light);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.app-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.header-right {
    display: flex;
    gap: var(--spacing-sm);
}

.icon-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.icon-btn:active {
    transform: scale(0.95);
}

/* Seletor de Período */
.period-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    justify-content: center;
}

.period-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    color: var(--text-light);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    min-width: 44px;
    min-height: 44px;
}

.period-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.period-display {
    display: flex;
    gap: var(--spacing-sm);
}

.period-input {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    min-height: 44px;
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.app-main {
    flex: 1;
    padding-bottom: 70px;
}

/* ========================================
   TAB NAVIGATION
   ======================================== */
.tab-navigation {
    display: flex;
    background: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 140px;
    z-index: 999;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    border-bottom: 3px solid transparent;
    min-width: 80px;
}

.tab-btn:hover {
    background: var(--bg-primary);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-icon {
    font-size: 1.5rem;
}

.tab-label {
    font-size: 0.85rem;
    font-weight: 600;
}

/* ========================================
   TAB CONTENT
   ======================================== */
.tab-content {
    padding: var(--spacing-md);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* ========================================
   DASHBOARD - RESUMO RÁPIDO
   ======================================== */
.quick-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.summary-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: var(--transition);
}

.summary-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.card-icon {
    font-size: 2rem;
}

.card-info {
    display: flex;
    flex-direction: column;
}

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

.card-value {
    font-size: 1.2rem;
    font-weight: 700;
}

.income-card {
    border-left: 4px solid var(--success-color);
}

.expense-card {
    border-left: 4px solid var(--danger-color);
}

.balance-card {
    border-left: 4px solid var(--info-color);
}

/* ========================================
   ALERTAS
   ======================================== */
.alerts-container {
    margin-bottom: var(--spacing-lg);
}

.alert {
    background: var(--bg-card);
    border-left: 4px solid;
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.alert-warning {
    border-color: var(--warning-color);
}

.alert-danger {
    border-color: var(--danger-color);
}

.alert-success {
    border-color: var(--success-color);
}

.alert-icon {
    font-size: 1.5rem;
}

.alert-content h4 {
    margin: 0 0 4px 0;
    font-size: 1rem;
}

.alert-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ========================================
   GRÁFICOS
   ======================================== */
.charts-container {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.chart-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.chart-title {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.chart-wrapper {
    position: relative;
    height: 300px;
}

/* ========================================
   META DE ECONOMIA
   ======================================== */
.savings-goal-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.goal-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.goal-input-group label {
    font-weight: 600;
    color: var(--text-primary);
}

.goal-progress {
    margin-top: var(--spacing-md);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
}

.progress-bar {
    height: 24px;
    background: var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color), var(--primary-color));
    transition: width 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: var(--spacing-sm);
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ========================================
   SEÇÕES (RECEITAS/DESPESAS)
   ======================================== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ========================================
   FORMULÁRIOS
   ======================================== */
.form-container {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-title {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-primary);
}

.input-field {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: var(--transition);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.textarea-field {
    resize: vertical;
    min-height: 80px;
}

.form-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* ========================================
   BOTÕES
   ======================================== */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    min-height: 44px;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-light);
}

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

.btn-success {
    background: var(--success-color);
    color: var(--text-light);
}

.btn-success:hover {
    background: #388E3C;
}

.btn-danger {
    background: var(--danger-color);
    color: var(--text-light);
}

.btn-danger:hover {
    background: #D32F2F;
}

.btn-secondary {
    background: var(--text-secondary);
    color: var(--text-light);
}

.btn-secondary:hover {
    background: #616161;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.85rem;
    min-height: 36px;
}

/* ========================================
   LISTA DE ITENS
   ======================================== */
.items-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.item-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid;
    animation: fadeIn 0.3s ease;
}

.item-card.income {
    border-left-color: var(--success-color);
}

.item-card.expense {
    border-left-color: var(--danger-color);
}

.item-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-sm);
}

.item-title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.item-value {
    font-size: 1.1rem;
    font-weight: 700;
}

.item-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.item-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

/* ========================================
   TOTAL
   ======================================== */
.total-section {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
}

.total-label {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.total-value {
    font-size: 1.3rem;
    font-weight: 700;
}

.income-value {
    color: var(--success-color);
}

.expense-value {
    color: var(--danger-color);
}

.info-value {
    color: var(--info-color);
}

/* ========================================
   RESUMO
   ======================================== */
.dizimo-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.card-title {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.dizimo-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.dizimo-toggle {
    display: flex;
    align-items: center;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.toggle-label input[type="checkbox"] {
    display: none;
}

.toggle-slider {
    width: 50px;
    height: 26px;
    background: var(--border-color);
    border-radius: 13px;
    position: relative;
    transition: var(--transition);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    top: 3px;
    left: 3px;
    transition: var(--transition);
}

.toggle-label input:checked + .toggle-slider {
    background: var(--success-color);
}

.toggle-label input:checked + .toggle-slider::before {
    transform: translateX(24px);
}

.toggle-text {
    font-weight: 600;
}

.summary-details {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.summary-row:last-child {
    border-bottom: none;
}

.summary-row.highlight {
    background: var(--bg-primary);
    padding: var(--spacing-md);
    margin: var(--spacing-sm) calc(-1 * var(--spacing-md));
    border-radius: var(--border-radius-sm);
}

.summary-label {
    font-weight: 600;
    color: var(--text-primary);
}

.summary-value {
    font-weight: 700;
}

.indicators {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
}

.indicator.positive {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success-color);
}

.indicator.negative {
    background: rgba(244, 67, 54, 0.1);
    color: var(--danger-color);
}

.indicator-icon {
    font-size: 2rem;
}

.indicator-text {
    font-size: 1.1rem;
    font-weight: 600;
}

/* ========================================
   FOOTER
   ======================================== */
.app-footer {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: 0 -2px 4px rgba(0,0,0,0.1);
    margin-top: auto;
}

.app-footer p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ========================================
   RESPONSIVIDADE
   ======================================== */
@media (min-width: 768px) {
    .app-title {
        font-size: 2rem;
    }
    
    .tab-label {
        font-size: 0.95rem;
    }
    
    .charts-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .goal-input-group {
        flex-direction: row;
        align-items: flex-end;
    }
    
    .goal-input-group label {
        flex: 1;
    }
    
    .goal-input-group .btn {
        flex-shrink: 0;
    }
}

@media (min-width: 1024px) {
    .app-main {
        max-width: 1200px;
        margin: 0 auto;
        width: 100%;
    }
    
    .quick-summary {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========================================
   UTILITÁRIOS
   ======================================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.hidden {
    display: none !important;
}