/* General layout */
body {
    margin: 0;
    font-family: 'Roboto', 'RobotoDraft', Helvetica, Arial, sans-serif;
    background-color: #29292e;
    color: #e5e7eb;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

/* Container */
.container {
    width: 90%;
    max-width: 500px;
    padding: 2rem;
    box-sizing: border-box;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo {
    height: 150px;
}

.subtitle {
    color: #b0b0b5;
    font-size: 1.2rem;
    line-height: 1.4;
}

/* Card */
.card {
    background-color: #242429;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.25);
}

.card h2 {
    margin-top: 0;
    color: #f3f4f6;
    text-align: center;
}

/* Form */
form {
    display: flex;
    flex-direction: column;
    margin-top: 1.5rem;
}

label {
    font-size: 0.9rem;
    color: #c5c6ca;
    margin-bottom: 0.3rem;
}

.required {
    color: #ef5350;
}

input[type='text'] {
    background-color: #1b1b1f;
    border: 1px solid #3c3c44;
    color: #f9fafb;
    padding: 0.75rem;
    border-radius: 8px;
    outline: none;
    font-size: 1rem;
    margin-bottom: 1.2rem;
    transition: border-color 0.2s ease;
}

input[type='text']:focus {
    border-color: #cecece;
}

.error-message {
    color: #f87171;
    font-size: 0.85rem;
    margin-top: 0;
    margin-bottom: 1rem;
    height: 1rem;
}

/* Button */
button {
    background-color: #4caf50;
    color: white;
    font-weight: 600;
    border: none;
    padding: 0.9rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s;
}

button:hover:enabled {
    background-color: #43a047;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 2rem;
    color: #9ca3af;
    font-size: 0.8rem;
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .container {
        max-width: 90%;
        padding: 1.5rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .card {
        padding: 1.5rem;
    }

    .logo {
        height: 100px;
    }

    button {
        padding: 0.8rem;
        font-size: 0.95rem;
    }
}