@import url('https://fonts.googleapis.com/css?family=Montserrat:400,800');

* {
    box-sizing: border-box;
}

body {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), 
                url('/image/Administrativebuilding.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    font-family: 'Montserrat', sans-serif;
    min-height: 100vh;
    margin: 0;
    padding: 15px;
}

/* หัวข้อใหญ่ด้านบน */
.main-title {
    font-weight: bold;
    color: #ffffff;
    text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
    text-align: center;
    margin-bottom: 25px;
    font-size: 1.8rem;
    line-height: 1.4;
}

.container {
    background-color: #fff;
    border-radius: 15px;
    box-shadow: 0 14px 28px rgba(0,0,0,0.3), 0 10px 10px rgba(0,0,0,0.22);
    position: relative;
    overflow: hidden;
    width: 850px;
    max-width: 100%;
    min-height: 520px;
}

/* --- ฟอร์มและการจัดวาง --- */
.form-container {
    position: absolute;
    top: 0;
    height: 100%;
    transition: all 0.6s ease-in-out;
}

.sign-in-container {
    left: 0;
    width: 50%;
    z-index: 2;
}

form {
    background-color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 0 40px;
    height: 100%;
    text-align: center;
}

form h1 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #333;
}

input {
    background-color: #f1f3f5;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 12px 15px;
    margin: 8px 0;
    width: 100%;
    font-size: 14px;
}

/* --- ปุ่มสีเขียวธีมระบบ --- */
button {
    border-radius: 25px;
    border: 1px solid #2d6a4f;
    background-color: #2d6a4f;
    color: #FFFFFF;
    font-size: 14px;
    font-weight: bold;
    padding: 12px 45px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: 0.3s;
    cursor: pointer;
    margin-top: 10px;
}

button:hover {
    background-color: #1b4332;
    transform: translateY(-2px);
}

button.ghost {
    background-color: transparent;
    border-color: #FFFFFF;
}

/* --- Overlay ส่วนสีเขียวไล่เฉด --- */
.overlay-container {
    position: absolute;
    top: 0;
    left: 50%;
    width: 50%;
    height: 100%;
    overflow: hidden;
    transition: transform 0.6s ease-in-out;
    z-index: 100;
}

.overlay {
    background: linear-gradient(to right, #2d6a4f, #40916c);
    color: #FFFFFF;
    position: relative;
    left: -100%;
    height: 100%;
    width: 200%;
    transform: translateX(0);
    transition: transform 0.6s ease-in-out;
}

.overlay-panel {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 0 40px;
    text-align: center;
    top: 0;
    height: 100%;
    width: 50%;
}

.overlay-right {
    right: 0;
}

/* --- 📱 RESPONSIVE สำหรับมือถือ --- */
@media (max-width: 768px) {
    .main-title {
        font-size: 1.3rem;
    }

    .container {
        min-height: auto;
        display: flex;
        flex-direction: column;
    }

    .overlay-container {
        display: none; /* ซ่อนฝั่งขวาบนมือถือเพื่อความคลีน */
    }

    .form-container {
        position: relative;
        width: 100%;
        height: auto;
        padding: 40px 10px;
    }

    .sign-in-container {
        width: 100%;
    }

    button {
        width: 100%; /* ปุ่มเต็มจอบนมือถือ */
    }
}
.mobile-student-zone {
            display: none;
            width: 100%;
            margin-top: 20px;
            padding-top: 15px;
            border-top: 1px dashed #e0e0e0;
            text-align: center;
        }

        @media dotted,
        screen and (max-width: 768px) {
            .mobile-student-zone {
                display: block;
            }
        }

        /* 🛠️ CSS Reset เฉพาะภายใน Modal เพื่อป้องกัน login.css มารบกวนความสวยงาม */
        #requestModal * {
            box-sizing: border-box !important;
        }

        #requestModal form {
            display: block !important;
            padding: 0 !important;
            background: transparent !important;
            width: 100% !important;
            height: auto !important;
        }

        #requestModal label {
            display: block !important;
            font-weight: 700 !important;
            margin: 0 0 6px 0 !important;
            font-size: 13px !important;
            color: #333333 !important;
            text-align: left !important;
        }

        #requestModal input[type="text"],
        #requestModal input[type="tel"],
        #requestModal input[type="email"],
        #requestModal input[type="date"],
        #requestModal select {
            width: 100% !important;
            height: 44px !important;
            padding: 0 14px !important;
            margin: 0 !important;
            border: 1px solid #dcdfe6 !important;
            border-radius: 10px !important;
            font-size: 14px !important;
            background-color: #eef2f5 !important;
            color: #333333 !important;
            outline: none !important;
            box-shadow: none !important;
        }

        /* คลาสจัดการคอลัมน์ให้เท่ากันเป๊ะ */
        #requestModal .form-row {
            display: flex !important;
            gap: 12px !important;
            margin-bottom: 14px !important;
            width: 100% !important;
        }

        #requestModal .col-equal {
            flex: 1 1 0% !important;
            min-width: 0 !important;
        }