/* ===================================
   VARIÁVEIS CSS
   =================================== */
:root {
    --primary: #10b981;
    --primary-dark: #059669;
    --primary-light: #34d399;
    --secondary: #6366f1;
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #10b981;
    --losing-color: #ef4444;
    --neutral-color: #6366f1;
    --winning-color: #10b981;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-dark: #111827;
    --bg-card: #ffffff;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

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

h1 {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.875rem, 4vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.625rem);
    font-weight: 700;
    line-height: 1.3;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.btn-primary,
.btn-secondary,
.btn-cta {
    padding: 16px 32px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--text-light);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-large {
    padding: 20px 48px;
    font-size: 1.125rem;
}

.btn-calculate {
    width: 100%;
    margin-top: var(--spacing-lg);
}

.btn-cta {
    width: 100%;
    background: var(--primary);
    color: white;
    font-weight: 600;
}

.btn-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.hero {
    padding: var(--spacing-4xl) 0 var(--spacing-3xl);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.15));
    color: var(--primary-dark);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.highlight-red {
    color: var(--danger);
    position: relative;
}

.highlight-red::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    right: 0;
    height: 12px;
    background: rgba(239, 68, 68, 0.2);
    z-index: -1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin: var(--spacing-xl) 0;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-2xl);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.trust-note {
    margin-top: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-light);
}

.problem-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
}

.problem-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.problem-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: transform 0.2s;
}

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

.problem-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

.problem-card h3 {
    margin-bottom: var(--spacing-md);
}

.problem-card p {
    font-size: 1rem;
}

.simulator-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

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

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-md);
}

.simulator-container {
    max-width: 1000px;
    margin: 0 auto;
}

.simulator-form-wrapper {
    background: var(--bg-card);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    margin-bottom: var(--spacing-2xl);
}

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

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-size: 1rem;
}

.input-wrapper {
    position: relative;
}

.input-prefix {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 1.125rem;
}

.form-group input[type="text"] {
    width: 100%;
    padding: 16px 16px 16px 48px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    font-size: 1.125rem;
    font-family: inherit;
    font-weight: 600;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.time-selector {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.time-btn {
    padding: 14px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    background: white;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.time-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

.results-container {
    animation: fadeIn 0.5s ease-in;
}

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

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

.results-period {
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
}

.comparison-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.comparison-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    position: relative;
    transition: transform 0.2s;
}

.comparison-card:hover {
    transform: translateY(-4px);
}

.comparison-card.losing {
    border: 3px solid var(--losing-color);
}

.comparison-card.neutral {
    border: 3px solid var(--neutral-color);
}

.comparison-card.winning {
    border: 3px solid var(--winning-color);
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.3);
}

.card-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.card-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-top: var(--spacing-sm);
}

.losing-badge {
    background: rgba(239, 68, 68, 0.1);
    color: var(--losing-color);
}

.neutral-badge {
    background: rgba(99, 102, 241, 0.1);
    color: var(--neutral-color);
}

.winning-badge {
    background: rgba(16, 185, 129, 0.1);
    color: var(--winning-color);
}

.card-amount {
    font-size: 2.5rem;
    font-weight: 900;
    text-align: center;
    margin: var(--spacing-lg) 0;
    color: var(--text-primary);
}

.card-details {
    border-top: 2px solid rgba(0, 0, 0, 0.05);
    padding-top: var(--spacing-md);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    font-size: 0.95rem;
}

.detail-row.small {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.card-difference {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 700;
}

.card-difference.positive {
    background: rgba(16, 185, 129, 0.1);
    color: var(--winning-color);
}

.card-difference.large {
    font-size: 1.125rem;
    padding: var(--spacing-lg);
}

.chart-container {
    background: var(--bg-card);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-2xl);
}

.chart-container h4 {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.impact-alert {
    display: flex;
    gap: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(239, 68, 68, 0.05));
    border: 2px solid var(--losing-color);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-2xl);
}

.alert-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.alert-content h4 {
    color: var(--losing-color);
    margin-bottom: var(--spacing-sm);
}

.alert-content p {
    font-size: 1rem;
}

.cta-section {
    margin-top: var(--spacing-3xl);
}

.cta-section h3 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

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

.cta-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.cta-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    transition: transform 0.2s;
}

.cta-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.cta-card.featured {
    border: 3px solid var(--primary);
}

.cta-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
}

.cta-logo {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.logo-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1.5rem;
    color: white;
}

.logo-placeholder.nubank {
    background: linear-gradient(135deg, #820ad1, #a259e0);
}

.logo-placeholder.inter {
    background: linear-gradient(135deg, #ff7a00, #ff9500);
}

.logo-placeholder.c6 {
    background: linear-gradient(135deg, #000000, #333333);
}

.cta-card h4 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.cta-benefits {
    list-style: none;
    margin: var(--spacing-lg) 0;
}

.cta-benefits li {
    padding: var(--spacing-sm) 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.cta-note {
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--primary);
    font-weight: 600;
}

.safety-note {
    display: flex;
    gap: var(--spacing-md);
    background: rgba(16, 185, 129, 0.05);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.safety-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.safety-note p {
    font-size: 0.875rem;
}

.how-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
}

.how-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.steps-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.step-item {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.step-item::after {
    content: '';
    position: absolute;
    left: 30px;
    top: 70px;
    width: 2px;
    height: calc(100% + 20px);
    background: linear-gradient(180deg, var(--primary), transparent);
}

.step-item:last-child::after {
    display: none;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.step-content h3 {
    margin-bottom: var(--spacing-sm);
}

.detailed-comparison {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.detailed-comparison h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.comparison-table-wrapper {
    overflow-x: auto;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

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

.comparison-table thead {
    background: var(--bg-secondary);
}

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

.comparison-table th {
    font-weight: 700;
    text-align: center;
}

.comparison-table td {
    text-align: center;
}

.comparison-table td:first-child {
    text-align: left;
    font-weight: 600;
}

.losing-col {
    color: var(--losing-color);
}

.neutral-col {
    color: var(--neutral-color);
}

.winning-col {
    color: var(--winning-color);
}

.table-note {
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.faq-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
}

.faq-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.faq-item {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.faq-item h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.faq-item p {
    font-size: 1rem;
}

.final-cta {
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.final-cta h2,
.final-cta p {
    color: white;
}

.final-cta p {
    margin: var(--spacing-lg) 0 var(--spacing-xl);
    font-size: 1.25rem;
}

.cta-subtext {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    opacity: 0.9;
}

.footer {
    background: var(--bg-dark);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

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

.footer-section a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: var(--spacing-sm);
    transition: color 0.2s;
}

.footer-section a:hover {
    color: white;
}

.disclaimer,
.affiliate-disclaimer {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .form-row { grid-template-columns: 1fr; }
    .time-selector { grid-template-columns: repeat(2, 1fr); }
    .comparison-cards { grid-template-columns: 1fr; }
    .cta-cards { grid-template-columns: 1fr; }
    .step-item { flex-direction: column; }
    .step-item::after { left: 30px; top: 70px; }
}

@media (max-width: 480px) {
    .container { padding: 0 var(--spacing-md); }
    .btn-large { padding: 16px 24px; font-size: 1rem; }
    .hero-stats { grid-template-columns: 1fr; }
}