:root {
    --mau-nen: #fdf6e3;
    --mau-vien: #8b4513;
    --mau-chu: #3a3a3a;
    --mau-cung: #a0522d;
    --mau-chinh-tinh: #d90429;
    --mau-phu-tinh-tot: #007bff;
    --mau-phu-tinh-xau: #555;
}

body {
    font-family: 'Times New Roman', serif;
    background-image: url('https://images.pexels.com/photos/176851/pexels-photo-176851.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=2');
    color: var(--mau-chu);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    box-sizing: border-box;
    min-height: 100vh;
}

.form-container {
    background-color: rgba(255, 255, 255, 0.5);
    border: 2px solid var(--mau-vien);
    padding: 25px;
    border-radius: 10px;
    max-width: 500px;
    width: 100%;
    margin-bottom: 40px;
}
.form-container h1 {
    text-align: center;
    color: var(--mau-vien);
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 2em;
}
.form-group {
    margin-bottom: 15px;
}
.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}
.form-group input[type="text"],
.form-group input[type="number"], 
.form-group select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
.d-flex { display: flex; gap: 10px; align-items: center; }
.flex-1 { flex: 1; }
.flex-2 { flex: 2; }
.d-flex-gender {
    display: flex;
    align-items: center;
    gap: 15px;
}
.d-flex-gender > label { margin-bottom: 0; }
.gender-option { display: flex; align-items: center; }
.gender-option label { font-weight: normal; margin-left: 5px; margin-bottom: 0; }
.submit-btn {
    background-color: var(--mau-vien);
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    font-size: 1.2em;
    font-weight: bold;
    margin-top: 20px;
}

.laso-wrapper {
    border: 5px solid var(--mau-vien);
    padding: 10px;
    background-color: #fff;
    max-width: 900px;
    width: 100%;
}
.la-so {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr 1fr;
    border: 2px solid var(--mau-chu);
    aspect-ratio: 1/1;
}
.cung {
    border: 1px solid #ccc;
    padding: 5px;
    font-size: 11px;
    position: relative;
    line-height: 1.3;
}
.cung:nth-child(1) { grid-area: 1 / 4; }
.cung:nth-child(2) { grid-area: 1 / 3; }
.cung:nth-child(3) { grid-area: 1 / 2; }
.cung:nth-child(4) { grid-area: 1 / 1; }
.cung:nth-child(5) { grid-area: 2 / 1; }
.cung:nth-child(6) { grid-area: 3 / 1; }
.cung:nth-child(7) { grid-area: 4 / 1; }
.cung:nth-child(8) { grid-area: 4 / 2; }
.cung:nth-child(9) { grid-area: 4 / 3; }
.cung:nth-child(10) { grid-area: 4 / 4; }
.cung:nth-child(11) { grid-area: 3 / 4; }
.cung:nth-child(12) { grid-area: 2 / 4; }
.thien-ban {
    grid-area: 2 / 2 / 4 / 4;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    border: 1px solid #ccc;
    padding: 5px;
}
.thien-ban p { margin: 4px 0; }
.cung-header { display: flex; justify-content: space-between; font-weight: bold; }
.ten-cung { color: var(--mau-cung); }
.dai-van { font-size: 10px; color: #333; }
.dia-chi { position: absolute; bottom: 5px; right: 5px; font-weight: bold; }

.dien-giai-container {
    max-width: 900px;
    width: 100%;
    margin-top: 30px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}
.dien-giai-container h2, .dien-giai-container .dg-item h3 {
    text-align: center;
}
/* Sửa lại như sau */
.dien-giai-container .dg-item p {
    text-align: center; /* Đổi thành căn giữa */
    line-height: 1.6;
    color: #555;
    margin: 0;
}
.dg-item { margin-bottom: 20px; }
.dg-item h3 { margin: 0 0 5px 0; font-size: 1.2em; color: var(--mau-chu); }
.dg-item .dg-name { color: var(--mau-chinh-tinh); font-weight: bold; }
.hidden { display: none; }