@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

body, h1, h2, h3, p, ul, form { margin: 0; padding: 0; }
body {
    font-family: 'Poppins', sans-serif;
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}
.container { width: 90%; max-width: 1200px; margin: 0 auto; }

.main-header {
    background-color: #fff; padding: 15px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    border-bottom: 1px solid #eee;
    position: sticky; top: 0; z-index: 1000;
}
.main-header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5em; font-weight: 700; color: #004080; text-decoration: none; }
.main-nav ul { list-style: none; display: flex; align-items: center; gap: 25px; }
.main-nav a { text-decoration: none; color: #333; font-weight: 500; transition: color 0.3s; }
.main-nav a:hover { color: #004080; }

.logout-button {
    background: none; border: none; padding: 0; font-family: inherit; font-size: inherit;
    font-weight: 500; color: #333; cursor: pointer; transition: color 0.3s;
}
.logout-button:hover { color: #004080; }

main { padding: 0; } 

.hero {
    background-color: #004080;
    color: white;
    padding: 100px 0;
    text-align: center;
}
.hero-title { font-size: 3em; font-weight: 700; margin-bottom: 20px; }
.hero-subtitle { font-size: 1.2em; max-width: 700px; margin: 0 auto 30px auto; opacity: 0.9; }

.btn {
    display: inline-block; padding: 12px 30px;
    border-radius: 5px; text-decoration: none;
    font-weight: bold; transition: background-color 0.3s, transform 0.2s;
}
.btn-primary { background-color: #ffcc00; color: #004080; }
.btn-primary:hover { background-color: #ffd633; transform: translateY(-2px); }
.btn-secondary { background-color: #e9ecef; color: #004080; }
.btn-secondary:hover { background-color: #dde2e7; }

.features { padding: 80px 0; }
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.card {
    background-color: #fff; border: 1px solid #e9ecef;
    border-radius: 8px; padding: 30px; text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.04);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-5px); box-shadow: 0 8px 15px rgba(0,0,0,0.08); }
.card h3 { margin-bottom: 15px; color: #004080; font-size: 1.4em; }
.card p { flex-grow: 1; margin-bottom: 20px; color: #666; }

.main-footer {
    flex-shrink: 0; 
    background-color: #343a40;
    color: #f8f9fa;
    padding: 40px 0;
    text-align: center;
}