:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --background-color: #ecf0f1;
    --card-bg-color: #ffffff;
    --text-color: #333;
    --light-text-color: #ffffff;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    background-color: var(--background-color);
    color: var(--text-color);
}

.container {
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 20px;
}

/* --- Hero Header --- */
.hero {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: var(--light-text-color);
    text-align: center;
    padding: 60px 20px;
}

.hero h1 {
    margin: 0;
    font-size: 3em;
    font-weight: 700;
}

.hero p {
    font-size: 1.2em;
    font-weight: 300;
    opacity: 0.9;
}

/* --- Project Grid Layout --- */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

/* --- Project Card Styling --- */
.project-card {
    background-color: var(--card-bg-color);
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.07);
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
    border-left: 5px solid var(--primary-color);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.12);
}

.card-inner {
    padding: 25px 30px;
}

.card-inner h2 {
    margin: 0 0 10px 0;
    font-size: 1.6em;
    color: var(--secondary-color);
}

.access-link {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
}

/* --- Footer --- */
.site-footer {
    text-align: center;
    padding: 25px;
    margin-top: 50px;
    color: #7f8c8d;
    font-size: 0.9em;
}