/* ===== Reset e Configurações Gerais ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores principais */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    
    /* Cores de fundo */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    
    /* Cores de texto */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    
    /* Cores de borda */
    --border-color: #e2e8f0;
    --border-focus: #3b82f6;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Espaçamentos */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transições */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    padding: var(--spacing-md);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* ===== Header ===== */
.header {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) var(--spacing-xl);
}

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

.header h1 {
    color: var(--primary-color);
    font-size: 1.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header h1 i {
    font-size: 2rem;
}

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

/* ===== Main Content ===== */
.main-content {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

/* ===== Form Sections ===== */
.form-section {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--border-color);
}

.form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.form-section h2 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-section h2 i {
    color: var(--primary-color);
}

.form-section h3 {
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.section-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
}

.highlight-section {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 2px solid #bae6fd;
}

/* ===== Form Grid ===== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
    background: var(--bg-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

.form-group input.readonly-field {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: not-allowed;
    font-weight: 600;
}

/* ===== Checkbox e Radio Groups ===== */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.checkbox-label,
.radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.checkbox-label:hover,
.radio-label:hover {
    background: var(--bg-tertiary);
}

.checkbox-label input,
.radio-label input {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
}

.checkbox-label span,
.radio-label span {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.radio-group {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xs);
}

/* ===== Calculated Results ===== */
.calculated-results {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.result-item {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.result-item label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.result-value {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn:active {
    transform: translateY(0);
}

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

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

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

.btn-secondary:hover {
    background: #475569;
}

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

.btn-success:hover {
    background: #059669;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--border-color);
}

/* ===== Histórico ===== */
.historico-container {
    animation: fadeIn var(--transition-normal);
}

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

.historico-header h2 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-container {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

.search-container input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 3rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.search-container input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-container i {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 1.25rem;
}

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

.historico-item {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.historico-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

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

.historico-item-nome {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--text-primary);
}

.historico-item-data {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.historico-item-info {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

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

.historico-empty {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

.historico-empty i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: white;
    font-size: 0.875rem;
}

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

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-sm);
    }

    .header {
        padding: var(--spacing-md);
    }

    .header h1 {
        font-size: 1.25rem;
    }

    .header h1 i {
        font-size: 1.5rem;
    }

    .header-content {
        flex-direction: column;
        align-items: stretch;
    }

    .header-actions {
        flex-direction: column;
    }

    .main-content {
        padding: var(--spacing-md);
    }

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

    .form-section h2 {
        font-size: 1.25rem;
    }

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

    .calculated-results {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .form-actions {
        flex-direction: column;
    }

    .historico-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .historico-item-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .historico-item-info {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .historico-item-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.125rem;
    }

    .btn {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-md);
    }

    .form-section {
        padding-bottom: var(--spacing-md);
    }

    .result-value {
        font-size: 1.25rem;
    }
}

/* ===== Print Styles ===== */
@media print {
    body {
        background: white;
        padding: 0;
    }

    .header-actions,
    .form-actions,
    .btn,
    .footer {
        display: none !important;
    }

    .container {
        max-width: 100%;
    }

    .main-content {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }

    .form-section {
        page-break-inside: avoid;
    }

    .highlight-section {
        border: 2px solid var(--border-color);
    }
}