:root {
    --primary-color: #F1AA3E;
    --primary-hover: #d89935;
    --background: #000000;
    --card-bg: #ffffff;
    --text-primary: #000000;
    --text-secondary: #666666;
    --error-bg: #ef4444;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--background);
    min-height: 100vh;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

.logo {
    width: 160px;
    margin-bottom: 3rem;
}

.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

textarea {
    width: 100%;
    height: 8rem;
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    resize: none;
    font-family: inherit;
    font-size: 0.875rem;
    box-sizing: border-box;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(241, 170, 62, 0.2);
}

button {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

.copyright {
    color: white;
    font-size: 0.875rem;
    margin-top: 2rem;
}

.toast {
    position: fixed;
    top: 1rem;
    right: 1rem;
    background-color: var(--error-bg);
    color: white;
    padding: 1rem;
    border-radius: 0.5rem;
    max-width: 300px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: translateX(120%);
    transition: transform 0.3s ease-in-out;
}

.toast.show {
    transform: translateX(0);
}

.toast-content h4 {
    margin: 0 0 0.25rem 0;
    font-size: 0.875rem;
}

.toast-content p {
    margin: 0;
    font-size: 0.75rem;
    opacity: 0.9;
}

@media (max-width: 640px) {
    .container {
        padding: 1rem;
    }
    
    .card {
        padding: 1.5rem;
    }
}