:root {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --error: #ef4444;
    --success: #10b981;
}

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

.header {
    padding: 30px;
    text-align: center;
    background: #1abc9c;
    color: white;
    font-size: 20px;
  }

body {
    font-family: system-ui, -apple-system, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

nav {
    background-color: var(--bg-secondary);
    padding: 1rem;
    margin-bottom: 2rem;
}

nav ul {
    display: flex;
    gap: 2rem;
    list-style: none;
    justify-content: center;
}

nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: background-color 0.2s;
}

nav a:hover {
    background-color: var(--accent);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.chat-container, .image-container {
    background-color: var(--bg-secondary);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.chat-messages {
    height: 400px;
    overflow-y: auto;
    margin-bottom: 1rem;
    padding: 1rem;
    border: 1px solid var(--text-secondary);
    border-radius: 0.375rem;
}

.message {
    margin-bottom: 1rem;
    padding: 0.75rem;
    border-radius: 0.375rem;
}

.user-message {
    background-color: var(--accent);
    margin-left: 2rem;
}

.assistant-message {
    background-color: var(--bg-primary);
    margin-right: 2rem;
}

.input-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

input, select, textarea {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--text-secondary);
    padding: 0.5rem;
    border-radius: 0.375rem;
    font-size: 1rem;
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--accent);
    border-color: transparent;
}

button {
    background-color: var(--accent);
    color: var(--text-primary);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--accent-hover);
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.generated-image {
    width: 100%;
    height: auto;
    border-radius: 0.375rem;
}

.loading {
    display: none;
    text-align: center;
    padding: 1rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }

    .input-group {
        flex-direction: column;
    }
}

footer {
    text-align: center;
    padding: 3px;
    color: white;
  }