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

body {
    font-family: 'Source Sans Pro', Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../images/estefania_BG1.jpg') center/cover no-repeat fixed;
}

.login-container {
    width: 90%;
    max-width: 400px;
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.logo-placeholder {
    width: 150px;
    height: 150px;
    margin: 0 auto 30px;
    
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 14px;
}

h2 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-family: 'Dancing Script', cursive;
    font-size: 32px;
}

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

.form-select, .form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-select:focus, .form-control:focus {
    outline: none;
    border-color: #1D809F;
}

.btn-submit {
    width: 100%;
    padding: 12px;
    background: #1D809F;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-submit:hover {
    background: #17667f;
}

.alert {
    padding: 12px;
    margin-bottom: 20px;
    border-radius: 8px;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.copyright {
    text-align: center;
    margin-top: 20px;
    color: #666;
    font-size: 12px;
}

@media (max-width: 480px) {
    .login-container {
        padding: 30px 20px;
    }
    
    .logo-placeholder {
        width: 120px;
        height: 120px;
    }
}