@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
    --primary-color: #4285f4;
    --primary-dark: #3367d6;
    --secondary-color: #34a853;
    --accent-color: #fbbc05;
    --danger-color: #ea4335;
    --text-color: #202124;
    --text-light: #5f6368;
    --background-color: #f8f9fa;
    --card-color: #ffffff;
    --border-color: #dadce0;
    --shadow-color: rgba(60, 64, 67, 0.1);
    --card-shadow: 0 1px 2px 0 rgba(60, 64, 67, 0.1), 0 2px 6px 2px rgba(60, 64, 67, 0.06);
    --header-gradient: linear-gradient(135deg, #4285f4, #0d47a1);
    --animation-duration: 0.3s;
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background: var(--header-gradient);
    color: white;
    padding: 1.5rem 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 50px;
    width: auto;
}

header h1 {
    font-size: 1.8rem;
    font-weight: 500;
    margin: 0;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.card {
    background-color: var(--card-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform var(--animation-duration), box-shadow var(--animation-duration);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px 0 rgba(60, 64, 67, 0.1), 0 8px 16px 4px rgba(60, 64, 67, 0.08);
}

.card-header {
    padding: 1rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 1.5rem;
}

.card-body p {
    margin-bottom: 1rem;
}

.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.alert-danger {
    background-color: #fce8e6;
    color: var(--danger-color);
    border: 1px solid #fad2cf;
}

.file-upload-container {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
}

.file-upload {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--animation-duration), background-color var(--animation-duration);
}

.file-upload:hover, .file-upload.highlight {
    border-color: var(--primary-color);
    background-color: rgba(66, 133, 244, 0.05);
}

.file-input {
    display: none;
}

.file-upload-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.file-upload-text {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.small-text {
    font-size: 0.875rem;
    color: var(--text-light);
}

.file-name {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background-color: var(--background-color);
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--text-light);
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

.file-name.has-file {
    color: var(--text-color);
    font-weight: 500;
    background-color: #e8f0fe;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--animation-duration), transform var(--animation-duration);
    border: none;
    text-decoration: none;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-primary:disabled {
    background-color: #b8c2cc;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background-color: #e8f0fe;
    color: var(--primary-color);
}

.btn-secondary:hover {
    background-color: #d4e4fc;
}

.btn-success {
    background-color: var(--secondary-color);
    color: white;
}

.btn-success:hover {
    background-color: #2d9047;
}

.template-download {
    margin-top: 1.5rem;
    text-align: center;
}

.progress {
    height: 8px;
    background-color: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    max-width: 100%;
    transition: width 0.3s ease;
}

.progress-bar.error {
    background-color: #f44336;
    max-width: 100%;
}

.progress-message {
    margin-top: 10px;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
    max-width: 100%;
}

.stats-area {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 15px 0;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.stat-label {
    font-weight: bold;
}

.badge {
    padding: 5px 10px;
    border-radius: 4px;
    color: white;
    font-size: 14px;
}

.bg-success {
    background-color: #28a745;
}

.bg-danger {
    background-color: #dc3545;
}

.failed-list {
    margin-top: 15px;
    margin-bottom: 15px;
}

.failed-list-content {
    background-color: #f8f9fa;
    border: 1px solid #ddd;
    padding: 10px;
    border-radius: 4px;
    max-height: 200px;
    overflow-y: auto;
    font-size: 14px;
    white-space: pre-wrap;
}

.download-link {
    margin-top: 15px;
}

.hidden {
    display: none;
}

footer {
    text-align: center;
    margin-top: 2rem;
    padding: 1.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.sample-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.sample-image {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.sample-caption {
    font-style: italic;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .logo-container {
        flex-direction: column;
        text-align: center;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
    
    .card-header {
        padding: 0.75rem 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .file-upload {
        padding: 1.5rem 1rem;
    }
}