:root {
    --primary-color: #6366f1;
    --secondary-color: #4f46e5;
    --background-color: #f8fafc;
    --text-color: #1e293b;
    --border-color: #e2e8f0;
    --hover-color: #818cf8;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.navbar {
    background-color: white;
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    background-color: var(--primary-color);
    color: white;
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
    flex: 1;
}

.title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.subtitle {
    text-align: center;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 2rem;
}

.generator-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.input-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

textarea {
    width: 100%;
    height: 150px;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    resize: none;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.char-count {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.7;
}

.options {
    display: flex;
    gap: 1rem;
}

select {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    cursor: pointer;
    background-color: white;
}

select:focus {
    outline: none;
    border-color: var(--primary-color);
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

button:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
}

button.generating {
    animation: pulse 1.5s infinite;
}

.preview-section {
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-container {
    width: 100%;
    aspect-ratio: 1;
    border: 2px dashed var(--border-color);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    background-color: #f8fafc;
}

.preview-container.has-image {
    border-style: solid;
}

.preview-container img {
    max-width: 100%;
    max-height: 100%;
    border-radius: 0.5rem;
}

.placeholder {
    text-align: center;
    color: var(--text-color);
    opacity: 0.5;
}

.placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.image-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

footer {
    text-align: center;
    padding: 2rem;
    background-color: white;
    margin-top: auto;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

@media (max-width: 768px) {
    .generator-container {
        grid-template-columns: 1fr;
    }

    .title {
        font-size: 2rem;
    }

    .options {
        flex-direction: column;
    }
}