@charset "utf-8";

* { font-family: 'Bai Jamjuree', sans-serif; }

/* Banner */
.header-parallax {
    height: 40vh;
    background-size: cover; background-position: center; background-attachment: fixed;
    display: flex; justify-content: center; align-items: center; text-align: center;
    position: relative; margin-bottom: 40px;
}
.header-parallax::before {
    content: ''; position: absolute; top:0; left:0; width:100%; height:100%;
    background: rgba(0,0,0,0.6);
}
.header-con { 
    position: relative; z-index: 1; color: #fff; padding: 30px 50px;
    background: rgba(0, 0, 0, 0.5); backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 215, 0, 0.5); border-radius: 10px; 
}
.header-con h1 { font-size: 1.8rem; font-weight: 700; margin-bottom: 10px; color: #FFD700; }
.header-con p { font-size: 1.1rem; color: #ddd; margin: 0; letter-spacing: 1px; }

/* Card Section */
.oit-section { margin-bottom: 40px; }
.oit-card {
    background: #fff; border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden; border: 1px solid rgba(0,0,0,0.05);
}
.card-header-badge {
    background: linear-gradient(135deg, #5A0000, #3a0000);
    padding: 15px 30px; border-bottom: 4px solid #FFD700;
}
.card-header-badge h3 { margin: 0; color: #fff; font-size: 1.3rem; font-weight: 700; }
.card-header-badge i { margin-right: 10px; color: #FFD700; }
.card-body-content { padding: 40px; }

/* Manual Grid */
.manual-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.manual-item {
    display: flex; align-items: flex-start; padding: 25px;
    background: #fdfdfd; border: 1px solid #eee; border-radius: 10px;
    transition: all 0.3s; position: relative;
}
.manual-item:hover {
    transform: translateY(-5px); border-color: #FFD700;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1); background: #fffbf0;
}
.manual-item.highlight { border-left: 5px solid #FFD700; }

.icon-box {
    width: 50px; height: 50px; background: #5A0000; color: #fff;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; margin-right: 20px; flex-shrink: 0;
}

.text-box h5 { font-size: 1.1rem; font-weight: 700; color: #333; margin-bottom: 5px; }
.text-box p { font-size: 0.9rem; color: #666; margin-bottom: 15px; }

.btn-dl {
    display: inline-block; padding: 8px 15px; border-radius: 50px;
    text-decoration: none; font-size: 0.85rem; font-weight: 600;
    transition: 0.2s;
}
.pdf { background: #ffebee; color: #c62828; border: 1px solid #ffcdd2; }
.pdf:hover { background: #c62828; color: #fff; }

/* Images & Slider */
.responsive-img { width: 100%; height: auto; border-radius: 8px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
.shadow-img { box-shadow: 0 5px 15px rgba(0,0,0,0.15); border: 1px solid #eee; }

.carousel-inner { border-radius: 10px; background: #f0f0f0; }
.carousel-item img {
    height: 400px; object-fit: contain; width: 100%; /* ล็อกความสูงรูปให้เท่ากัน */
}
.carousel-control-prev-icon, .carousel-control-next-icon {
    background-color: rgba(0, 0, 0, 0.5); background-size: 50%, 50%;
}

.text-red { color: #8B0000; font-weight: bold; }

/* Responsive */
@media (max-width: 768px) {
    .header-con h1 { font-size: 1.5rem; }
    .card-body-content { padding: 20px; }
    .carousel-item img { height: 250px; }
}