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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* Header */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo h1 {
    font-size: 1.8rem;
    margin-bottom: 0.2rem;
}

.logo h1 a {
    color: white;
    text-decoration: none;
}

.logo .tagline {
    font-size: 0.85rem;
    opacity: 0.9;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

nav a:hover {
    opacity: 0.8;
}

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

/* Hero Section */
.hero {
    background: white;
    padding: 3rem;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #667eea;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
    display: inline-block;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-secondary {
    background: white;
    color: #667eea;
    border: 2px solid #667eea;
}

/* Featured Section */
.featured {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.col {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.col h3 {
    color: #667eea;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #f0f0f0;
}

/* Ranking List */
.ranking-list {
    margin-bottom: 1rem;
}

.rank-item {
    display: flex;
    align-items: center;
    padding: 0.8rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.rank-item:last-child {
    border-bottom: none;
}

.rank {
    font-weight: bold;
    color: #667eea;
    width: 40px;
}

.rank-item a {
    flex: 1;
    color: #333;
    text-decoration: none;
    font-weight: 500;
}

.rank-item a:hover {
    color: #667eea;
}

.score {
    color: #f39c12;
    font-weight: 600;
}

/* Project List */
.project-list, .job-list {
    margin-bottom: 1rem;
}

.project-item, .job-item {
    padding: 1rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.project-item:last-child, .job-item:last-child {
    border-bottom: none;
}

.project-item h4, .job-item h4 {
    margin-bottom: 0.3rem;
}

.project-item h4 a, .job-item h4 a {
    color: #333;
    text-decoration: none;
    font-size: 1rem;
}

.project-item h4 a:hover, .job-item h4 a:hover {
    color: #667eea;
}

.project-item p, .job-item p {
    color: #666;
    font-size: 0.9rem;
}

.meta, .salary {
    font-size: 0.85rem;
    color: #999;
}

.salary {
    color: #27ae60;
    font-weight: 600;
}

.view-all {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    display: inline-block;
    margin-top: 0.5rem;
}

.view-all:hover {
    text-decoration: underline;
}

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-item {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: #666;
    font-size: 1rem;
}

/* Profile Page */
.profile-header {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.profile-avatar {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    font-weight: bold;
    flex-shrink: 0;
}

.profile-info {
    flex: 1;
}

.profile-info h2 {
    color: #333;
    margin-bottom: 0.5rem;
}

.profile-title {
    color: #667eea;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.profile-stats {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

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

.profile-stat-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: #667eea;
}

.profile-stat-label {
    font-size: 0.9rem;
    color: #666;
}

.profile-body {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

.profile-section {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.profile-section h3 {
    color: #667eea;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #f0f0f0;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background: #f0f0f0;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.9rem;
    color: #555;
}

/* Browse Pages */
.page-header {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.page-header h2 {
    color: #667eea;
    margin-bottom: 0.5rem;
}

.filter-bar {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.filter-bar select, .filter-bar input {
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.95rem;
}

.browse-list {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: hidden;
}

.browse-item {
    padding: 1.5rem;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.browse-item:last-child {
    border-bottom: none;
}

.browse-rank {
    font-size: 1.5rem;
    font-weight: bold;
    color: #667eea;
    width: 50px;
    text-align: center;
}

.browse-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.browse-details {
    flex: 1;
}

.browse-details h3 {
    margin-bottom: 0.3rem;
}

.browse-details h3 a {
    color: #333;
    text-decoration: none;
    font-size: 1.1rem;
}

.browse-details h3 a:hover {
    color: #667eea;
}

.browse-details p {
    color: #666;
    font-size: 0.9rem;
}

.browse-score {
    text-align: right;
}

.browse-score-value {
    font-size: 1.3rem;
    color: #f39c12;
    font-weight: bold;
}

.browse-score-label {
    font-size: 0.8rem;
    color: #999;
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
}

.footer-links a:hover {
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        align-items: flex-start;
    }

    nav ul {
        margin-top: 1rem;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .profile-header {
        flex-direction: column;
        text-align: center;
    }

    .profile-body {
        grid-template-columns: 1fr;
    }

    footer .container {
        flex-direction: column;
        text-align: center;
    }
}