body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 60px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 15px;
    margin-bottom: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.hero-section h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    border: none;
}

.subtitle {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.9;
    font-weight: 300;
}

.hero-badge {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255,255,255,0.2);
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3);
}

/* Section Styling */
section {
    margin-bottom: 50px;
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

h2 {
    color: #2c3e50;
    font-size: 2.2rem;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 15px auto;
    border-radius: 2px;
}

h3 {
    color: #34495e;
    font-size: 1.4rem;
    margin-bottom: 15px;
}

/* Project Overview */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.overview-card {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    transition: transform 0.3s ease;
}

.overview-card:hover {
    transform: translateY(-5px);
}

.overview-card h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

/* Technical Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.feature-card {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
    border-left: 4px solid #667eea;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.feature-card h3 {
    color: #667eea;
    margin-bottom: 15px;
}

.feature-card ul {
    list-style: none;
    padding: 0;
}

.feature-card li {
    padding: 5px 0;
    position: relative;
    padding-left: 20px;
}

.feature-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
}

/* Navigation */
.nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.nav-card {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    padding: 25px;
    border-radius: 12px;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.nav-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    text-decoration: none;
    color: white;
}

.nav-card h3 {
    color: white;
    margin-bottom: 10px;
}

/* Project Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    border-radius: 15px;
    color: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* Mermaid Styling */
.mermaid {
    margin: 30px 0;
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border: 1px solid #e9ecef;
}

/* Links */
a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1.1rem;
    }
    
    section {
        padding: 20px;
    }
    
    .overview-grid,
    .features-grid,
    .nav-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Table Styling */
table {
    border-collapse: collapse;
    width: 100%;
    margin: 20px 0;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

table, th, td {
    border: 1px solid #e9ecef;
}

th, td {
    padding: 15px;
    text-align: left;
}

th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
}

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

tr:hover {
    background-color: #e9ecef;
}