/* --- Calculla CSS Otimizado (v1.5 - Correção de Proporção do Logo) --- */

/* 1. Reset e Variáveis Globais */
:root {
    /* Cores */
    --primary-color: #2A53C1;
    --primary-dark: #1e3a8a;
    --secondary-color: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #555; /* Escurecido para melhor contraste */
    --background: #ffffff;
    --background-light: #f9fafb;
    --border-color: #e5e7eb;

    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 1rem;

    /* Espaçamentos e Bordas */
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;

    /* Transições */
    --transition-fast: 150ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Classe para esconder visualmente, mas manter para leitores de tela */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 2. Header e Navegação */
.header {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.5rem 0; /* Padding vertical reduzido para um cabeçalho mais compacto */
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
}

/* --- CORREÇÃO DO LOGO (CABEÇALHO) --- */
.logo {
    width: 180px;  /* Controlamos apenas a largura */
    height: auto;    /* A altura se ajusta automaticamente para manter a proporção */
    max-width: 100%; /* Garante que o logo não ultrapasse o contêiner em telas pequenas */
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: rgba(42, 83, 193, 0.1);
}

/* 3. Seções e Títulos */
.hero {
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.highlight {
    color: var(--primary-color);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.calculator-section, .content-section {
    padding: var(--spacing-2xl) 0;
}

.calculator-section:nth-of-type(even) {
    background-color: var(--background-light);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* 4. Calculadoras */
.calculator-container {
    background: var(--background);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
}

.calculator-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.calculator-inputs, .calculator-results {
    padding: var(--spacing-xl);
}

.input-group {
    margin-bottom: var(--spacing-lg);
}

.input-label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.input-field {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(42, 83, 193, 0.1);
}

.shortcut-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.shortcut-btn {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--background);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.calculate-btn {
    width: 100%;
    padding: var(--spacing-lg);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.calculate-btn:hover {
    transform: translateY(-2px);
}

.results-placeholder {
    text-align: center;
    padding: 2rem 0;
}

.results-summary {
    margin-bottom: var(--spacing-xl);
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
    border-bottom: none;
}

.highlight-result {
    background: rgba(16, 185, 129, 0.05);
    padding: var(--spacing-md);
    margin: var(--spacing-md) calc(-1 * var(--spacing-md));
    border-radius: var(--border-radius-md);
}

.result-value {
    font-weight: 600;
}

.highlight-result .result-value {
    color: var(--secondary-color);
    font-weight: 700;
}

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

.projection-table-container {
    margin-top: var(--spacing-2xl);
}

.table-wrapper {
    overflow-x: auto;
}

.projection-table {
    width: 100%;
    border-collapse: collapse;
    text-align: right;
}

.projection-table th, .projection-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.projection-table th:first-child, .projection-table td:first-child {
    text-align: left;
}

.percentage-calculator {
    padding: var(--spacing-xl);
}

.percentage-options {
    display: grid;
    gap: var(--spacing-xl);
}

.option-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.option-card:hover, .option-card.active {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.option-inputs {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.result-display {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.125rem;
    background: rgba(42, 83, 193, 0.1);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    text-align: center;
}

/* 5. Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.blog-card {
    display: block;
    text-decoration: none;
    color: inherit;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.blog-card-content {
    padding: var(--spacing-lg);
}

.blog-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.blog-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.blog-card-link {
    font-weight: 600;
    color: var(--primary-color);
}

/* 6. Conteúdo e Artigos */
.content-article {
    max-width: 800px;
    margin: 0 auto;
}

.content-article h1, .content-article h2, .content-article h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.content-article p, .content-article li {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.content-article ul, .content-article ol {
    padding-left: 1.5rem;
}

/* 7. Footer */
.footer {
    background: var(--background-light);
    color: var(--text-primary);
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

/* --- CORREÇÃO DO LOGO (RODAPÉ) --- */
.footer-logo {
    width: 150px; /* Controlamos apenas a largura */
    height: auto;   /* A altura se ajusta automaticamente */
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--text-secondary);
}

.footer-section h4 {
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-xl);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 8. Media Queries (Responsividade) */
@media (max-width: 968px) {
    .calculator-grid {
        grid-template-columns: 1fr;
    }
    .calculator-inputs {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
}

@media (max-width: 768px) {
    .hero-title { font-size: 2rem; }
    .section-title { font-size: 1.75rem; }
    .footer-content { grid-template-columns: 1fr; }
    .option-inputs { flex-direction: column; align-items: stretch; }
}

/* 9. Correções de Performance e Acessibilidade */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Correções de CLS para evitar pulos no layout */
.logo-link {
    display: inline-block;
    min-height: 45px; /* Espaço reservado para o logo no cabeçalho */
}

.ad-slot-banner {
    display: block;
    min-height: 90px;
    width: 100%;
    max-width: 728px;
    margin-left: auto;
    margin-right: auto;
    background-color: #f0f0f0;
}

/* Estilos de Impressão */
@media print {
    .header, .footer, .ad-slot, .calculate-btn, .shortcut-buttons {
        display: none;
    }
    body {
        background-color: white;
    }
    .calculator-container, .content-article {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
}