/* Google Color Palette - Material Design Colors */
:root {
    --google-blue: #4285F4;
    --google-red: #EA4335;
    --google-yellow: #FBBC04;
    --google-green: #34A853;
    --bg-color: #F8F9FA;
    --card-bg: #FFFFFF;
    --text-primary: #202124;
    --text-secondary: #5F6368;
    --border-color: #DADCE0;
}

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

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

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

/* Header Styles */
header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--google-blue), var(--google-green));
    color: white;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.95;
}

/* Search Bar */
.search-container {
    text-align: center;
    margin-bottom: 30px;
}

#searchBar {
    width: 100%;
    max-width: 600px;
    padding: 15px 20px;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    outline: none;
    transition: all 0.3s ease;
}

#searchBar:focus {
    border-color: var(--google-blue);
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

/* Individual Card */
.card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 4px solid var(--google-blue);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Alternate card colors */
.card:nth-child(4n+1) {
    border-left-color: var(--google-blue);
}

.card:nth-child(4n+2) {
    border-left-color: var(--google-red);
}

.card:nth-child(4n+3) {
    border-left-color: var(--google-yellow);
}

.card:nth-child(4n+4) {
    border-left-color: var(--google-green);
}

.participant-name {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-primary);
    font-weight: 600;
}

.participant-info {
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.participant-info p {
    margin: 8px 0;
    font-size: 0.95rem;
}

.participant-info strong {
    color: var(--text-primary);
}

/* Social Links */
.social-links {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.link-btn {
    flex: 1;
    min-width: 120px;
    padding: 10px 15px;
    text-decoration: none;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.github-btn {
    background-color: #24292e;
    color: white;
}

.github-btn:hover {
    background-color: #1a1e22;
    transform: scale(1.05);
}

.linkedin-btn {
    background-color: #0077B5;
    color: white;
}

.linkedin-btn:hover {
    background-color: #005582;
    transform: scale(1.05);
}

.icon {
    font-size: 1rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px;
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .social-links {
        flex-direction: column;
    }
    
    .link-btn {
        width: 100%;
    }
}