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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.site-logo {
    text-align: center;
    margin-bottom: 15px;
}

.site-logo h1 {
    color: #fff;
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    font-weight: bold;
}

.site-logo h1 span {
    color: #ffd700;
}

/* Navigation */
.nav-menu {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50px;
    padding: 10px 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.nav-menu ul {
    list-style: none;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.nav-menu ul li a {
    text-decoration: none;
    color: #667eea;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: 25px;
    transition: all 0.3s ease;
    display: inline-block;
}

.nav-menu ul li a:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
}

/* Main Content */
.main-content {
    background: #fff;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    margin-bottom: 30px;
    animation: fadeIn 0.6s ease;
}

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

.main-content h2 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 2em;
    border-bottom: 3px solid #667eea;
    padding-bottom: 10px;
}

.main-content h3 {
    color: #764ba2;
    margin-top: 25px;
    margin-bottom: 15px;
    font-size: 1.5em;
}

.main-content p {
    margin-bottom: 15px;
    text-align: justify;
    line-height: 1.8;
}

.main-content ul {
    margin-left: 30px;
    margin-bottom: 15px;
}

.main-content ul li {
    margin-bottom: 10px;
}

/* Welcome Section */
.welcome-section {
    text-align: center;
    padding: 50px 20px;
}

.welcome-section h2 {
    font-size: 2.5em;
    color: #667eea;
    margin-bottom: 20px;
}

.welcome-section p {
    font-size: 1.2em;
    color: #555;
    max-width: 800px;
    margin: 0 auto 30px;
}

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

.feature-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    color: #fff;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.feature-card .icon {
    font-size: 3em;
    margin-bottom: 15px;
}

.feature-card h3 {
    color: #fff;
    margin-bottom: 15px;
    font-size: 1.5em;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.9);
}

/* User Profiles Section */
.users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.user-card {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid #e9ecef;
}

.user-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #667eea;
}

.user-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 0 auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5em;
    color: #fff;
    font-weight: bold;
}

.user-card h3 {
    color: #667eea;
    margin-bottom: 10px;
}

.user-card .user-role {
    color: #764ba2;
    font-size: 0.9em;
    margin-bottom: 10px;
    font-weight: 600;
}

.user-card p {
    color: #666;
    font-size: 0.95em;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    color: #fff;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
}

.footer p {
    margin-bottom: 10px;
    font-size: 1em;
}

.footer a {
    color: #ffd700;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: #fff;
    text-decoration: underline;
}

.footer-divider {
    width: 100px;
    height: 3px;
    background: #ffd700;
    margin: 15px auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
    .site-logo h1 {
        font-size: 2em;
    }

    .nav-menu ul {
        flex-direction: column;
        gap: 10px;
    }

    .main-content {
        padding: 25px;
    }

    .welcome-section h2 {
        font-size: 2em;
    }

    .features-grid,
    .users-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile Specific Styles */
.mobile-container {
    max-width: 100%;
    padding: 10px;
}

.mobile-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 15px;
    text-align: center;
    border-radius: 10px;
    margin-bottom: 20px;
}

.mobile-header h1 {
    color: #fff;
    font-size: 1.8em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.mobile-content {
    background: #fff;
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}