/* login.css */
body {
    background: linear-gradient(135deg, #f0f2f5 0%, #e8f5e9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    font-family: "Sarabun", sans-serif;
}

.login-card-container {
    max-width: 400px;
    width: 100%;
    padding: 15px;
}

.logo-section {
    font-size: 3rem;
    color: #198754;
    margin-bottom: 10px;
}

#otpSection {
    display: none;
    overflow: hidden;
    transition: all 0.3s ease-out;
}

.otp-input {
    letter-spacing: 0.5rem;
    font-size: 1.5rem;
    text-align: center;
    font-weight: bold;
    color: #198754;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}