@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

body {
    font-family: 'Roboto', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #121212;
    color: #e0e0e0;
    margin: 0;
    padding: 2rem;
    min-height: 100vh;
    box-sizing: border-box;
}

.title {
    font-size: 3rem;
    font-weight: 700;
    /* 渐变色应用于文本，不影响 emoji */
    background: linear-gradient(90deg, #fde047, #f97316, #ef4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.2rem; /* 减小与副标题的距离 */
}

.title span {
    background: linear-gradient(90deg, #fde047, #f97316, #ef4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    text-align: center;
    color: #888;
    margin-bottom: 2rem;
    font-size: 1rem;
}

.main-container {
    display: flex;
    gap: 2rem;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

.controls-container {
    flex: 1;
    background: #1e1e1e;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 600px;
}

.result-container {
    flex: 1;
    background: #1e1e1e;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 600px;
    display: flex;
    flex-direction: column;
}

h2 {
    color: #e0e0e0;
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 500;
}

.upload-section, .prompt-section, .api-key-section {
    margin-bottom: 2rem;
}

.upload-area {
    border: 2px dashed #444;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    background: #252525;
    cursor: pointer;
}

.upload-area:hover, .upload-area.drag-over {
    border-color: #f97316;
    background: #2a2a2a;
}

.upload-area p {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}

.upload-area span {
    color: #888;
    font-size: 0.9rem;
}

input[type="file"] {
    display: none;
}

#thumbnails-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.thumbnail-wrapper {
    position: relative;
    padding-top: 100%;
    border-radius: 8px;
    overflow: hidden;
    background: #252525;
}

.thumbnail-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumbnail-wrapper .remove-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    padding: 0;
    line-height: 1;
}

textarea, input[type="password"] {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #444;
    background-color: #252525;
    color: #e0e0e0;
    resize: vertical;
    min-height: 100px;
    box-sizing: border-box;
    margin-bottom: 0.5rem;
    font-family: inherit;
}

input[type="password"] {
    min-height: auto;
}

#generate-btn {
    background: linear-gradient(90deg, #f97316, #ef4444);
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

#generate-btn:not(:disabled):hover {
    transform: translateY(-2px);
}

#generate-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.hidden {
    display: none !important;
}

#result-image-container {
    flex: 1;
    background-color: #252525;
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

#result-image-container img {
    max-width: 100%;
    max-height: 100%;
    border-radius: 8px;
}

#result-image-container p {
    color: #888;
    text-align: center;
}

@media (max-width: 1024px) {
    .main-container {
        flex-direction: column;
    }
    
    .controls-container {
        max-width: none;
    }
    
    body {
        padding: 1rem;
    }
}