:root {
    --primary: #0066cc;
    --primary-dark: #004d99;
    --secondary: #6c757d;
    --success: #28a745;
    --info: #17a2b8;
    --warning: #ffc107;
    --danger: #dc3545;
    --light: #f8f9fa;
    --dark: #343a40;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-800: #343a40;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

.navbar {
    background-color: #4D3B5E;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 700;
    color: white;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: white;
}

.hero-section {
    background: #39548B;
    background: linear-gradient(90deg,rgba(57, 84, 139, 1) 0%, rgba(178, 48, 98, 1) 80%);
    color: white;
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.hero-section h1 {
    font-weight: 700;
    font-size: 2rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.hero-section p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.section-title {
    color: #4D3B5E;
    font-weight: 700;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #4D3B5E;
}

.card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 2rem;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: #4D3B5E;
    color: white;
    padding: 1.5rem;
    font-weight: 600;
}

.card-header h3 {
    margin-bottom: 0;
    font-weight: 700;
}

.card-header.seo {
    background-color: #4285F4;
}

.card-header.ux {
    background-color: #34A853;
}

.card-header.ui {
    background-color: #FBBC05;
}

.card-header.cro {
    background-color: #EA4335;
}

.card-header.wordpress {
    background-color: #b91572;
}

.card-body {
    padding: 1.5rem;
}

.example-image {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border: 1px solid var(--gray-300);
}

.example-description {
    margin-bottom: 1.5rem;
}

.example-takeaways {
    background-color: var(--gray-100);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1.5rem;
}

.example-takeaways h4 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark);
}

.takeaway-list {
    list-style: none;
    padding-left: 0;
}

.takeaway-list li {
    position: relative;
    margin-bottom: 0.5rem;
    padding-left: 2rem;
}

.takeaway-list li:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--primary);
}

.takeaway-list li.seo:before {
    background-color: #4285F4;
    content: "SEO";
    display: block;
    font-size: 10px;
    width: 26px;
    height: 22px;
    line-height: 20px;
    text-align: center;
    margin-top: -5px;
    color: #fff;
    border-radius: 0 !important;
    font-weight: 600;
}

.takeaway-list li.ux:before {
    background-color: #34A853;
    content: "UX";
    display: block;
    font-size: 10px;
    width: 26px;
    height: 22px;
    line-height: 20px;
    text-align: center;
    margin-top: -5px;
    color: #fff;
    border-radius: 0 !important;
    font-weight: 600;
}

.takeaway-list li.ui:before {
    background-color: #FBBC05;
    content: "UI";
    display: block;
    font-size: 10px;
    width: 26px;
    height: 22px;
    line-height: 20px;
    text-align: center;
    margin-top: -5px;
    color: #fff;
    border-radius: 0 !important;
    font-weight: 600;
}

.takeaway-list li.cro:before {
    background-color: #EA4335;
    content: "CRO";
    display: block;
    font-size: 10px;
    width: 26px;
    height: 22px;
    line-height: 20px;
    text-align: center;
    margin-top: -5px;
    color: #fff;
    border-radius: 0 !important;
    font-weight: 600;
}

.footer {
    background-color: var(--dark);
    color: white;
    padding: 3rem 0;
    margin-top: 3rem;
}

.footer h5 {
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer ul {
    list-style: none;
    padding-left: 0;
}

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

.footer ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer ul li a:hover {
    color: white;
    text-decoration: none;
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #6C5384;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: background-color 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.back-to-top:hover {
    background-color: #4D3B5E;
    color: white;
}

/* Estilos para as abas de navegação */
.nav-tabs {
    border-bottom: 2px solid var(--primary);
    margin-bottom: 2rem;
}

.nav-tabs .nav-link {
    border: none;
    color: var(--secondary);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem 0.5rem 0 0;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link:hover {
    color: var(--primary);
    background-color: var(--gray-100);
}

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

/* Estilos para tabelas */
.table {
    width: 100%;
    margin-bottom: 2rem;
    border-collapse: collapse;
}

.table th {
    background-color: var(--primary);
    color: white;
    font-weight: 600;
    padding: 1rem;
    text-align: left;
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-300);
}

.table tr:hover {
    background-color: var(--gray-100);
}

/* Estilos para listas */
.feature-list {
    list-style: none;
    padding-left: 0;
}

.feature-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
}

.feature-list li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

/* Responsividade */
@media (max-width: 767.98px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .card-header h3 {
        font-size: 1.25rem;
    }
}