body{
    font-family:'Segoe UI',sans-serif;
    background:#f9f9f9;
}

.navbar-custom{
    background:#003366;
}

.page-header{
    background:#f4f7fb;
    padding:20px 20px;
    text-align:center;
}

.page-header h1{
    color:#003366;
    font-weight:700;
}

.page-header p{
    color:#666;
    font-size:1.15rem;
}

.divider{
    height:3px;
    background:#ddd;
    margin:35px 0;
}

.phase-title{
    color:#003366;
    font-weight:bold;
}

.phase-subtitle{
    color:#666;
    margin-bottom:25px;
}

.unit-title{
    color:#003366;
    margin:30px 0 15px;
}

.week-card{
    background:white;
    border-radius:12px;
    padding:18px 20px;
    height:100%;
    text-align:center;
    box-shadow:0 5px 15px rgba(0,0,0,.08);
    transition:.3s;
    border-top:6px solid #003366;
}

.week-card:hover{
    transform:translateY(-4px);
    box-shadow:0 10px 25px rgba(0,0,0,.15);
}

.week-card h3{
    color:#003366;
    font-size:1.5rem;
    margin:0 0 4px;
}

.week-card h5{
    margin:6px 0 10px;
}

.week-card p{
    line-height:1.4;
    margin:0;
    color:#555;
}

.basics{
    border-color:#4169E1;
}

.programming{
    border-color:#2E8B57;
}

.intermediate{
    border-color:#4682B4;
}

.bridge{
    border-color:#F4A261;
}

.project{
    border-color:#C97B2A;
}

.presentation{
    border-color:#3CB371;
}

footer{
    margin-top:50px;
    background:#333;
    color:white;
    text-align:center;
    padding:20px;
}