body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9fafb;
    transition: background-color 0.3s, color 0.3s;
}

body.dark-mode {
    background-color: #121212;
    color: #f1f1f1;
}

.form-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 30px;
    border-radius: 12px;
    background-color: #ffffff;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: background-color 0.3s, color 0.3s;
}

body.dark-mode .form-container {
    background-color: #1e1e1e;
    color: #f1f1f1;
    box-shadow: 0 4px 8px rgba(255,255,255,0.05);
}

.form-container label {
    color: #000 !important;
}

.form-container .logo {
    display: block;
    margin: 0 auto 5px auto;
    width: 250px;
    height: auto;
}
body.dark-mode .form-container label {
    color: #ffffff !important;
}

.form-container input {
    color: #000 !important;
    background-color: #fff !important;
    border: 1px solid #ccc !important;
    transition: background-color 0.3s, color 0.3s;
}

body.dark-mode .form-container input {
    color: #ffffff !important;
    background-color: #2c2c2c !important;
    border: 1px solid #555 !important;
}

body.dark-mode .form-container input::placeholder {
    color: #dddddd !important;
}

.ui.teal.button {
    background-color: #FADA00 !important;
    color: #000 !important;
}

.ui.teal.header {
    color: #FADA00 !important;
}

.toggle-dark {
    position: fixed;
    top: 20px;
    right: 20px;
    cursor: pointer;
    font-size: 1.5em;
    color: #FADA00;
}