:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-color: #3b82f6; /* Blue accent */
    --border-color: #333333;
    --hover-card-bg: #252525;
    --font-family: 'Inter', sans-serif;
    --transition-speed: 0.2s;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

header {
    margin-bottom: 60px;
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.search-wrapper {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
}

#searchInput {
    width: 100%;
    padding: 12px 48px 12px 20px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color var(--transition-speed);
}

#searchInput:focus {
    border-color: var(--accent-color);
}

.search-icon {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform var(--transition-speed), background-color var(--transition-speed), border-color var(--transition-speed);
    text-decoration: none; /* Make the whole card clickable if desired, but we have a button */
    color: inherit;
    position: relative;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-4px);
    background-color: var(--hover-card-bg);
    border-color: #444;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.project-name {
    font-size: 1.25rem;
    font-weight: 600;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 24px;
    flex-grow: 1;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 20px;
    background-color: #333;
    color: #e0e0e0;
    font-weight: 500;
}

.visit-btn {
    display: inline-block;
    padding: 8px 16px;
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.project-card:hover .visit-btn {
    background-color: var(--text-primary);
    color: var(--bg-color);
    border-color: var(--text-primary);
}

footer {
    margin-top: 80px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

@media (max-width: 600px) {
    .container {
        padding: 30px 16px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}