/* កំណត់ Font ឱ្យដូច index.php */
body {
    font-family: 'Kantumruy Pro', 'Khmer OS Battambang', sans-serif;
    background-color: #f0f2f5;
    margin: 0;
}

.header-home {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, var(--primary-color), #8e44ad);
    color: white;
            clip-path: ellipse(150% 100% at 50% 0%); /* បង្កើតរាងកោងខាងក្រោម */
            margin-bottom: 40px;
        }

/* ចានទម្រង់ចុះឈ្មោះ */
.register-card {
    position: relative;
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 95%;
    margin: 0 auto;
}

/* ការរៀបជួរ Input */
.row-group {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.input-control, .button-control {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.form-group {
    margin-bottom: 20px;
}

/* ស្ទីល Label */
label {
    font-weight: 700;
    margin-bottom: 8px;
    color: #651199; /* ពណ៌ Primary */
    font-size: 0.95rem;
}

label i {
    margin-right: 5px;
    color: #bb8d1a; /* ពណ៌ Secondary */
}

/* ស្ទីល Input */
select,
input[type="text"],
input[type="tel"],
input[type="email"],
input[type="password"],
input[type="date"]{
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-family: 'Kantumruy Pro', sans-serif;
    font-size: 1rem;
    transition: all 0.3s;
    background-color: #fcfcfc;
}

input:focus {
    border-color: #651199;
    outline: none;
    box-shadow: 0 0 8px rgba(101, 17, 153, 0.2);
    background-color: white;
}

/* ប៊ូតុងចុះឈ្មោះ */
.action-buttons {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.btn-submit {
    background: linear-gradient(135deg, #651199, #8e44ad);
    color: white;
    padding: 15px 40px;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(101, 17, 153, 0.3);
}

/* Link ទៅកាន់ទំព័រ Login */
.link-login {
    text-decoration: none;
    color: #bb8d1a;
    font-weight: 400;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.link-login:hover {
    color: #651199;
    text-decoration: underline;
}

.footer {
   display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}
.footer p{
    text-align: center;
}

/* ការរៀបចំសម្រាប់ទូរស័ព្ទ */
@media screen and (max-width: 768px) {
    .row-group {
        flex-direction: column;
        gap: 15px;
    }
    
    .register-card {
        padding: 25px 20px;
    }
    
    .dashboard-container {
        width: 95%;
        margin-top: -40px;
    }
}

/* កំណត់ឱ្យ Container របស់ Password រត់ពេញទទឹង */
.password-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
}

/* កំណត់ឱ្យ Input Password រត់ពេញទទឹងដូច Input Tel */
.password-wrapper input[type="password"],
.password-wrapper input[type="text"] {
    width: 100%;
    padding-right: 45px; /* ទុកចន្លោះខាងស្តាំសម្រាប់ដាក់ Icon ភ្នែក */
    box-sizing: border-box; /* ធានាថា Padding មិនធ្វើឱ្យ Input រីកធំជាងមុន */
}

/* កំណត់ទីតាំង Icon ភ្នែកឱ្យនៅខាងស្តាំដៃ ក្នុង Input */
.toggle-password {
    position: absolute;
    right: 10px;
    cursor: pointer;
    user-select: none;
    color: #666;
    font-size: 18px;
    z-index: 10;
}
.password-container {
    position: relative;
    display: flex;
    align-items: center;
}

/* កំណត់ឱ្យ Input មានគម្លាតខាងស្តាំដើម្បីកុំឱ្យជាន់រូបភ្នែក */
.password-container input {
    width: 100%;
    padding-right: 35px; /* បង្កើនគម្លាតខាងស្តាំ */
}
/* បន្ថែមស្ទីលឱ្យប៊ូតុង "ចូលប្រព័ន្ធ" ឱ្យមើលទៅស្អាតដូចក្នុង Register */
button[name="teacher-login"] {
    background: linear-gradient(135deg, #651199, #8e44ad);
    color: white;
    padding: 12px;
    border: none;
    border-radius: 10px;
    font-family: 'Kantumruy Pro', sans-serif;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    transition: 0.3s;
}

/* បន្ថែមស្ទីលសម្រាប់ប្រឡោះបង្ហាញរូបភាព */
        .photo-preview-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-bottom: 25px;
        }
        .image-holder {
            width: 150px;
            height: 180px;
            border: 2px dashed #651199;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background-color: #f8f9fa;
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }
        .image-holder:hover {
            border-color: var(--secondary-color);
            background-color: #f0e6f7;
        }
        .image-holder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: none; /* លាក់រូបភាពសិន បើមិនទាន់រើស */
        }
        .image-holder i {
            font-size: 3rem;
            color: #ccc;
        }
        .upload-label {
            margin-top: 10px;
            font-size: 0.9rem;
            color: #651199;
            font-weight: bold;
            cursor: pointer;
        }

.photo-preview-container {
    text-align: center;
    margin-bottom: 20px;
}
.image-holder {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 2px dashed #ddd;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    cursor: pointer;
    background-color: #f9f9f9;
}
.image-holder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}