:root {
    --primary-color: #ff0000;
    --primary-dark: #cc0000;
    --secondary-color: #282828;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --medium-gray: #e0e0e0;
    --dark-gray: #666;
    --success-color: #4caf50;
    --error-color: #f44336;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-gray);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

header p {
    font-size: 1.1rem;
    color: var(--dark-gray);
}

.main-nav {
    display: flex;
    justify-content: center;
    margin-top: 20px;
    gap: 20px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 15px;
    border-radius: 4px;
    text-decoration: none;
    color: var(--dark-gray);
    background-color: var(--light-gray);
    transition: all 0.2s;
    gap: 5px;
}

.nav-link:hover {
    background-color: var(--medium-gray);
}

.nav-link.active {
    background-color: var(--primary-color);
    color: white;
}

.input-section {
    background-color: white;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.input-group {
    display: flex;
    margin-bottom: 15px;
}

.input-group input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid var(--medium-gray);
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
}

.input-group button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0 20px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s;
}

.input-group button:hover {
    background-color: var(--primary-dark);
}

.textarea-group {
    margin-bottom: 15px;
}

.textarea-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-gray);
}

.textarea-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--medium-gray);
    border-radius: 4px;
    font-size: 1rem;
    resize: vertical;
    font-family: var(--font-main);
}

.submit-group {
    margin-top: 20px;
    text-align: center;
}

.submit-group button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.submit-group button:hover {
    background-color: var(--primary-dark);
}

.options {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.option-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.option-group label {
    font-weight: 500;
    color: var(--dark-gray);
}

.option-group select {
    padding: 8px 12px;
    border: 1px solid var(--medium-gray);
    border-radius: 4px;
    background-color: white;
    font-size: 0.9rem;
}

.translation-info {
    font-size: 0.8rem;
    color: var(--dark-gray);
    margin-top: 5px;
    font-style: italic;
    background-color: #f8f8f8;
    padding: 3px 8px;
    border-radius: 4px;
    display: inline-block;
}

.loading-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 0;
}

.loading-details {
    color: var(--dark-gray);
    font-size: 0.9rem;
    margin-top: 10px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 0, 0, 0.1);
    border-radius: 50%;
    border-top: 4px solid var(--primary-color);
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.result-section {
    background-color: white;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--medium-gray);
    flex-wrap: wrap;
    gap: 15px;
}

.result-header h2 {
    font-size: 1.3rem;
    color: var(--secondary-color);
    word-break: break-word;
}

.result-actions {
    display: flex;
    gap: 10px;
}

.btn-download, .btn-copy {
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: background-color 0.2s;
}

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

.btn-download:hover {
    background-color: #3d8b40;
}

.btn-copy {
    background-color: var(--medium-gray);
    color: var(--text-color);
}

.btn-copy:hover {
    background-color: #d0d0d0;
}

.transcript-container {
    max-height: 400px;
    overflow-y: auto;
    background-color: var(--light-gray);
    padding: 15px;
    border-radius: 4px;
    border: 1px solid var(--medium-gray);
}

pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.error-section {
    background-color: #ffebee;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    text-align: center;
}

.error-icon {
    font-size: 3rem;
    color: var(--error-color);
    margin-bottom: 15px;
}

.error-section h3 {
    font-size: 1.5rem;
    color: var(--error-color);
    margin-bottom: 10px;
}

.error-section p {
    color: #d32f2f;
    margin-bottom: 10px;
}

.error-details {
    background-color: #fff;
    border: 1px solid #ffcdd2;
    border-radius: 4px;
    padding: 15px;
    margin-top: 15px;
    text-align: left;
}

.error-details p {
    margin-bottom: 10px;
}

.error-details .solution {
    background-color: #e8f5e9;
    padding: 10px;
    border-radius: 4px;
    color: #2e7d32;
    border-left: 4px solid #4caf50;
}

.note {
    background-color: #fff9c4;
    padding: 10px;
    border-radius: 4px;
    margin-top: 10px;
    color: #ff6f00;
    border-left: 4px solid #ffc107;
}

/* Batch results styles */
.result-summary {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--dark-gray);
}

.success-count {
    color: var(--success-color);
    font-weight: bold;
}

.error-count {
    color: var(--error-color);
    font-weight: bold;
}

.batch-results {
    margin-top: 20px;
}

.success-section, .error-results-section {
    margin-bottom: 30px;
}

.success-section h3, .error-results-section h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--medium-gray);
    display: flex;
    align-items: center;
    gap: 10px;
}

.success-section h3 {
    color: var(--success-color);
}

.error-results-section h3 {
    color: var(--error-color);
}

.result-item {
    background-color: var(--light-gray);
    border-radius: 6px;
    padding: 15px;
    margin-bottom: 15px;
}

.result-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
    flex-wrap: wrap;
    gap: 10px;
}

.result-item-header h4 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--secondary-color);
    flex: 1;
}

.result-item-actions {
    display: flex;
    gap: 10px;
}

.transcript-preview {
    background-color: white;
    padding: 10px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--dark-gray);
    margin-top: 10px;
    white-space: pre-wrap;
    word-break: break-word;
}

.error-item {
    background-color: #ffebee;
    border-radius: 6px;
    padding: 15px;
    margin-bottom: 15px;
}

.error-url {
    font-weight: bold;
    margin-bottom: 5px;
    word-break: break-all;
}

.error-message {
    color: var(--error-color);
}

footer {
    text-align: center;
    padding: 20px 0;
    color: var(--dark-gray);
    font-size: 0.9rem;
}

.hidden {
    display: none;
}

/* 캐시 관련 스타일 */
.cached-info {
    font-size: 0.8rem;
    color: var(--dark-gray);
    font-style: italic;
    margin-left: 10px;
}

/* 진행 표시줄 스타일 */
.progress-container {
    width: 100%;
    height: 20px;
    background-color: var(--medium-gray);
    border-radius: 10px;
    margin: 15px 0;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 10px;
    transition: width 0.5s ease-in-out;
}

/* 로딩 인디케이터 개선 */
#loadingIndicator {
    text-align: center;
    padding: 30px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

#loadingIndicator p {
    margin-bottom: 10px;
    color: var(--dark-gray);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .input-group {
        flex-direction: column;
    }

    .input-group input {
        border-radius: 4px;
        margin-bottom: 10px;
    }

    .input-group button {
        border-radius: 4px;
        padding: 10px;
    }

    .options {
        flex-direction: column;
        gap: 15px;
    }

    .result-header {
        flex-direction: column;
        align-items: flex-start;
    }
}