@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: 2rem; 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: 1.4rem; 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(280px, 1fr));
    gap: 20px;
}

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

.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: 15px; flex-shrink: 0;
}

.text-box { flex-grow: 1; }
.text-box h5 { font-size: 1rem; font-weight: 700; color: #333; margin-bottom: 8px; }

.btn-dl {
    font-size: 0.85rem; color: #5A0000; text-decoration: none; font-weight: 600;
    border: 1px solid #5A0000; padding: 5px 12px; border-radius: 20px;
    display: inline-block; transition: 0.2s;
}
.btn-dl:hover { background: #5A0000; color: #fff; }

.btn-dl.word { color: #2b579a; border-color: #2b579a; } /* สีน้ำเงินสำหรับ Word */
.btn-dl.word:hover { background: #2b579a; color: #fff; }

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 2 คอลัมน์ */
    gap: 15px;
}
.gallery-img {
    width: 100%; height: auto; border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1); transition: transform 0.3s;
}
.gallery-img:hover { transform: scale(1.03); z-index: 5; }

.full-width { grid-column: span 2; } /* รูปใหญ่เต็มความกว้าง */

/* Responsive */
@media (max-width: 768px) {
    .header-con h1 { font-size: 1.5rem; }
    .card-body-content { padding: 20px; }
    .gallery-grid { grid-template-columns: 1fr; } /* มือถือเหลือ 1 คอลัมน์ */
    .full-width { grid-column: span 1; }
}