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

body {
    font-family: 'Courier New', Courier, monospace;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: #f0f0f0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #f0f0f0;
    }
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
    padding: 40px 20px;
    max-width: 600px;
    width: 100%;
}

.card {
    padding: 40px;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    width: 100%;
    background-color: #ffffff;
    color: #222222;
}

@media (prefers-color-scheme: dark) {
    .card {
        background-color: #090D11;
        color: #f0f0f0;
        box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    }
}

.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 30px;
}

.logo-container img {
    max-width: 250px;
    height: auto;
    width: 100%;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

.title {
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 10px;
    letter-spacing: -1px;
}

.subtitle {
    font-size: 1.2rem;
    text-align: center;
    margin-bottom: 20px;
    letter-spacing: 4px;
    opacity: 0.8;
}

.description {
    text-align: center;
    max-width: 500px;
    margin: 0 auto 40px;
    padding: 0 20px;
    line-height: 1.8;
}

.description p {
    margin-bottom: 15px;
    opacity: 0.9;
    font-size: 0.95rem;
}

.description p:last-child {
    margin-bottom: 0;
}

.form-container {
    width: 100%;
    /* max-width: 500px; */
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    opacity: 0.8;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1rem;
    background-color: transparent;
    color: inherit;
    transition: border-color 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .form-group input {
        border-color: rgba(255,255,255,0.2);
    }
}

.form-group input:focus {
    outline: none;
    border-color: #4a90e2;
}

.form-group input::placeholder {
    opacity: 0.5;
}

.error-message {
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 8px;
    display: none;
}

.error-message.show {
    display: block;
}

.success-message {
    color: #27ae60;
    font-size: 0.85rem;
    margin-top: 8px;
    display: none;
}

.success-message.show {
    display: block;
}

.submit-button {
    width: 100%;
    padding: 14px 24px;
    background-color: #222222;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.1s ease;
}

@media (prefers-color-scheme: dark) {
    .submit-button {
        background-color: #f0f0f0;
        color: #1a1a1a;
    }
}

.submit-button:hover:not(:disabled) {
    background-color: #333333;
    transform: translateY(-2px);
}

@media (prefers-color-scheme: dark) {
    .submit-button:hover:not(:disabled) {
        background-color: #e0e0e0;
    }
}

.submit-button:active:not(:disabled) {
    transform: translateY(0);
}

.submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.confirmation-message {
    text-align: center;
    padding: 20px;
    border-radius: 8px;
    background-color: rgba(39, 174, 96, 0.1);
    border: 2px solid rgba(39, 174, 96, 0.3);
    margin-top: 20px;
}

.confirmation-message h2 {
    margin-bottom: 10px;
    color: #27ae60;
}

.confirmation-message p {
    opacity: 0.8;
    line-height: 1.6;
}

.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }
    
    .card {
        padding: 30px 20px;
    }
    
    .title {
        font-size: 1.5rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
}