* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Poppins", sans-serif;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

#first_container {

    padding: 60px 50px;
    max-width: 500px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #c41e3a;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(196, 30, 58, 0.2);
}

.subtitle {
    font-size: 1rem;
    color: #666;
    margin-bottom: 35px;
    font-weight: 400;
    line-height: 1.5;
}

form {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
}

label {
    font-weight: 500;
    color: #333;
    font-size: 1rem;
    text-align: left;
    margin-bottom: 5px;
}

.input{
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-family: "Poppins", sans-serif;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    background: white;
}

.input:focus {
    outline: none;
    border-color: #c41e3a;
    box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.1);
}

.input::placeholder {
    color: #aaa;
    font-weight: 300;
}

#error-message {
    display: block;
    min-height: 24px;
    font-size: 0.9rem;
    margin-top: 5px;
    margin-bottom: 10px;
    text-align: left;
    font-weight: 500;
}

#error-message.error {
    color: #c41e3a;
}

#error-message.success {
    color: #28a745;
}

button[type="submit"] {
    background: linear-gradient(135deg, #c41e3a 0%, #d63447 100%);
    color: white;
    font-family: "Poppins", sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 18px 50px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(196, 30, 58, 0.4);
    transition: all 0.3s ease;
    margin-top: 15px;
    width: 100%;
}

button[type="submit"]:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(196, 30, 58, 0.6);
}

button[type="submit"]:active {
    transform: translateY(-1px);
}

.back-link {
    margin-top: 25px;
    margin-bottom: 0;
    font-size: 0.95rem;
}

.back-link a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 400;
}

.back-link a:hover {
    color: #c41e3a;
}

/* Responsive */
@media (max-width: 768px) {
    #first_container {
        padding: 40px 30px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 0.95rem;
    }
    
    input[type="tel"] {
        font-size: 1rem;
        padding: 14px 18px;
    }
    
    button[type="submit"] {
        padding: 16px 40px;
        font-size: 1rem;
    }
}