/* css/login.css */

/* พื้นหลังสีดำจางๆ (Backdrop) */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75); /* สีดำโปร่งแสง 75% */
    backdrop-filter: blur(5px); /* เบลอฉากหลัง */
    z-index: 9999; /* อยู่บนสุดเสมอ */
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

/* แสดง Overlay เมื่อมี class .active */
.login-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* กล่อง Login Modal */
.login-modal {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transform: translateY(-20px);
    transition: transform 0.3s ease;
    text-align: center;
}

.login-overlay.active .login-modal {
    transform: translateY(0);
}

.login-header {
    margin-bottom: 25px;
}

.login-header h3 {
    margin: 0;
    color: #333;
    font-weight: bold;
}

.login-header p {
    color: #666;
    margin-top: 5px;
    font-size: 0.9rem;
}

.login-input-group {
    margin-bottom: 20px;
    text-align: left;
}

.login-input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #444;
}

.login-input-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.login-input-group input:focus {
    border-color: #0d6efd;
    outline: none;
}

.login-btn {
    width: 100%;
    padding: 12px;
    background-color: #0d6efd;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s;
}

.login-btn:hover {
    background-color: #0b5ed7;
}

.login-error {
    color: #dc3545;
    font-size: 0.9rem;
    margin-top: 10px;
    display: none;
}

/* Animation เล็กน้อย */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.shake {
    animation: shake 0.4s cubic-bezier(.36,.07,.19,.97) both;
}