/* Base Styles */
:root {
    --primary-color: #3a539b;
    --secondary-color: #1e88e5;
    --accent-color: #ff6d00;
    --light-color: #f5f5f5;
    --dark-color: #333;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --gray-color: #757575;
    --light-gray-color: #e0e0e0;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f9f9f9;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.2;
    color: var(--primary-color);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    border-bottom: 2px solid var(--light-gray-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

h4 {
    font-size: 1.25rem;
    color: var(--dark-color);
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

ul, ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Header & Navigation */
header {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

header h1 {
    color: white;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
}

nav {
    background-color: var(--secondary-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--box-shadow);
}

nav ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

nav li {
    margin: 0 0.5rem;
}

nav a {
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    text-decoration: none;
}

nav a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    text-decoration: none;
}

/* Main Content */
main {
    padding: 2rem 0;
}

.section {
    margin-bottom: 3rem;
}

.card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
}

/* Executive Summary */
.top-recommendations {
    background-color: #f8f9fa;
    border-left: 4px solid var(--accent-color);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.top-recommendations h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.top-recommendations ol {
    margin-bottom: 0;
}

/* Methodology Section */
.criteria-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.criteria-item {
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border-top: 4px solid var(--secondary-color);
}

.criteria-item h3 {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.criteria-item h3 i {
    margin-right: 0.5rem;
    color: var(--secondary-color);
}

/* Website Rankings */
.website-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
    overflow: hidden;
}

.website-header {
    background-color: var(--primary-color);
    color: white;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.website-header h3 {
    color: white;
    margin: 0;
}

.rating {
    background-color: white;
    color: var(--primary-color);
    border-radius: 50px;
    padding: 0.5rem 1rem;
    font-weight: bold;
    display: flex;
    align-items: center;
}

.score {
    font-size: 1.5rem;
    margin-right: 0.25rem;
}

.website-content {
    padding: 1.5rem;
}

.website-content h4 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.website-content h4:first-child {
    margin-top: 0;
}

.website-link {
    margin-top: 1.5rem;
    text-align: right;
}

.button {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
}

.button:hover {
    background-color: var(--primary-color);
    text-decoration: none;
    color: white;
}

.button i {
    margin-left: 0.5rem;
}

/* Tabs for Detailed Analysis */
.tabs {
    margin-top: 1.5rem;
}

.tab-buttons {
    display: flex;
    flex-wrap: wrap;
    border-bottom: 2px solid var(--light-gray-color);
    margin-bottom: 1.5rem;
}

.tab-button {
    background: none;
    border: none;
    padding: 1rem 1.5rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-color);
    transition: var(--transition);
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

.tab-button:hover {
    color: var(--secondary-color);
}

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

.tab-pane {
    display: none;
    padding: 1.5rem;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.tab-pane.active {
    display: block;
}

/* Implementation Strategies */
.strategy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.strategy-item {
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border-left: 4px solid var(--secondary-color);
}

.strategy-item h4 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.table-responsive {
    overflow-x: auto;
    margin: 1.5rem 0;
}

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

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--light-gray-color);
}

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

tr:nth-child(even) {
    background-color: #f8f9fa;
}

/* Special Considerations */
.considerations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.consideration-item {
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border-top: 4px solid var(--accent-color);
}

.consideration-item h3 {
    display: flex;
    align-items: center;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.consideration-item h3 i {
    margin-right: 0.5rem;
}

/* Technology Requirements */
.tech-requirements {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.tech-item {
    text-align: center;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.tech-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

.tech-item i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.tech-item h3 {
    margin-bottom: 0.5rem;
}

/* Additional Resources */
.additional-resources {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.resource-item {
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
}

.resource-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

.resource-item h4 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

footer p {
    margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav li {
        margin: 0.25rem 0;
    }
    
    .criteria-grid,
    .strategy-grid,
    .considerations-grid,
    .tech-requirements,
    .additional-resources {
        grid-template-columns: 1fr;
    }
    
    .tab-buttons {
        flex-direction: column;
    }
    
    .tab-button {
        width: 100%;
        text-align: left;
        border-left: 3px solid transparent;
        border-bottom: none;
        margin-bottom: 0;
    }
    
    .tab-button.active {
        border-left-color: var(--primary-color);
        border-bottom-color: transparent;
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: var(--box-shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color);
}

/* Print Styles */
@media print {
    nav, .back-to-top {
        display: none;
    }
    
    body {
        background-color: white;
    }
    
    .card, .website-card, .tab-pane {
        box-shadow: none;
        border: 1px solid var(--light-gray-color);
    }
    
    .tab-pane {
        display: block;
    }
}