* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: #fff;
    color: #222;
}

/* ===== BANNER ===== */
.course-banner {
    height: 60vh;
    background: linear-gradient(rgba(0,0,0,.6), rgba(0,0,0,.6)),
    url("/images/back.png") center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.banner-content h1 {
    color: #fff;
    font-size: 40px;
}

.banner-content p {
    color: #ddd;
    margin-top: 10px;
}

/* ===== SECTIONS ===== */
.course-section {
    padding: 70px 20px;
}

.light {
    background: #f9fbff;
}

.dark {
    background: #0b2c4d;
    color: #fff;
}

.container {
    max-width: 1200px;
    margin: auto;
}

.center {
    text-align: center;
    margin-bottom: 40px;
}

/* ===== GRID ===== */
.section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.section-grid img {
    width: 100%;
    border-radius: 16px;
}

/* ===== LIST ===== */
.styled-list li {
    margin-bottom: 10px;
    line-height: 1.6;
}

/* ===== CAREER CARDS ===== */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px,1fr));
    gap: 30px;
}

.career-card {
    background: #fff;
    color: #222;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,.1);
    transition: transform .3s;
}

.career-card:hover {
    transform: translateY(-8px);
}

.career-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.career-card h3 {
    padding: 15px 15px 5px;
}

.career-card p {
    padding: 0 15px 20px;
    font-size: 14px;
}

/* ===== TIMELINE ===== */
.timeline {
    display: grid;
    gap: 25px;
}

.timeline-item {
    background: #fff;
    border-left: 6px solid #0b5ed7;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0,0,0,.08);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .section-grid {
        grid-template-columns: 1fr;
    }

    .banner-content h1 {
        font-size: 30px;
    }
}