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

html {
    color-scheme: light dark;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.6;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg-primary: #ffffff;
        --bg-secondary: #f5f5f5;
        --text-primary: #000000;
        --text-secondary: #666666;
        --border-color: #e0e0e0;
        --input-bg: #ffffff;
        --input-border: #cccccc;
        --button-bg: #000000;
        --button-text: #ffffff;
        --button-hover: #333333;
        --accent: #000000;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #121212;
        --bg-secondary: #1e1e1e;
        --text-primary: #ffffff;
        --text-secondary: #999999;
        --border-color: #333333;
        --input-bg: #1e1e1e;
        --input-border: #444444;
        --button-bg: #ffffff;
        --button-text: #000000;
        --button-hover: #cccccc;
        --accent: #ffffff;
    }
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

.badge {
    display: inline-block;
    background: var(--accent);
    color: var(--bg-primary);
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 8px;
    vertical-align: middle;
}

.section {
    margin-bottom: 32px;
}

.section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.upload-area {
    border: 1px dashed var(--border-color);
    border-radius: 6px;
    padding: 32px;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
}

.upload-area:hover {
    background-color: var(--bg-secondary);
    border-color: var(--text-primary);
}

.upload-area.dragover {
    background-color: var(--bg-secondary);
    border-color: var(--text-primary);
}

.upload-text {
    font-weight: 500;
    margin-bottom: 4px;
}

.upload-subtext {
    color: var(--text-secondary);
    font-size: 13px;
}

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

.model-selector {
    margin-bottom: 20px;
}

.model-selector label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    background-color: var(--input-bg);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
}

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

.device-info {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.device-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: border-color 0.2s, opacity 0.2s;
}

.device-badge:hover:not(.disabled) {
    border-color: var(--text-secondary);
}

.device-badge.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.device-badge.active {
    border-color: var(--accent);
    font-weight: 500;
}

.device-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-secondary);
}

.device-badge.active .device-dot {
    background: #22c55e;
}

.files-list {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    display: none;
    max-height: 300px;
    overflow-y: auto;
}

.files-list.active {
    display: block;
    margin-bottom: 20px;
}

.file-item {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

.file-item:last-child {
    border-bottom: none;
}

.file-item-info {
    flex: 1;
}

.file-item-name {
    font-weight: 500;
    margin-bottom: 2px;
    word-break: break-all;
}

.file-item-size {
    color: var(--text-secondary);
    font-size: 12px;
}

.file-item-status {
    margin-left: 10px;
    font-size: 12px;
    color: var(--text-secondary);
}

.file-progress {
    width: 60px;
    height: 4px;
    background: var(--bg-secondary);
    border-radius: 2px;
    overflow: hidden;
    margin-left: 10px;
}

.file-progress-fill {
    height: 100%;
    background: var(--accent);
    width: 0%;
    transition: width 0.3s;
}

.button-group {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

button {
    padding: 10px 16px;
    border: 1px solid var(--button-bg);
    border-radius: 4px;
    background-color: var(--button-bg);
    color: var(--button-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
}

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

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--border-color);
}

.status {
    padding: 12px;
    border-radius: 4px;
    font-size: 13px;
    display: none;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.status.active {
    display: block;
}

.spinner {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid var(--text-secondary);
    border-top-color: var(--text-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
}

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

.progress-container {
    display: none;
    margin-bottom: 20px;
}

.progress-container.active {
    display: block;
}

.progress-label {
    font-size: 13px;
    margin-bottom: 6px;
    display: flex;
    justify-content: space-between;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background-color: var(--bg-secondary);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--text-primary);
    width: 0%;
    transition: width 0.3s ease;
}

.downloads-list {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.record-btn {
    padding: 10px 16px;
    border: 1px solid var(--button-bg);
    border-radius: 4px;
    background-color: var(--button-bg);
    color: var(--button-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.record-btn.recording {
    background-color: #dc2626;
    border-color: #dc2626;
}

.record-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.record-time {
    font-variant-numeric: tabular-nums;
}

.download-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    border-bottom: 1px solid var(--border-color);
}

.download-item:last-child {
    border-bottom: none;
}

.download-name {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.download-size {
    font-variant-numeric: tabular-nums;
}

.results-container {
    display: none;
}

.results-container.active {
    display: block;
}

.copy-all-container {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 12px;
}

.result-item {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 16px;
    margin-bottom: 16px;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.result-filename {
    font-weight: 500;
    word-break: break-all;
    flex: 1;
    font-size: 14px;
}

.result-actions {
    display: flex;
    gap: 8px;
    margin-left: 12px;
}

.result-btn {
    padding: 6px 12px;
    font-size: 12px;
    white-space: nowrap;
}

.result-text {
    color: var(--text-primary);
    line-height: 1.6;
    overflow-wrap: break-word;
    white-space: pre-wrap;
    font-size: 14px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    background-color: var(--bg-secondary);
    padding: 12px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    max-height: 400px;
    overflow-y: auto;
}

.stats {
    background-color: var(--bg-secondary);
    padding: 12px;
    border-radius: 4px;
    margin-top: 16px;
    font-size: 13px;
    border: 1px solid var(--border-color);
}

.stats-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
}

.stats-row:last-child {
    margin-bottom: 0;
}

.stats-label {
    color: var(--text-secondary);
}

.stats-value {
    font-weight: 500;
}

.perf-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.perf-stat {
    background: var(--bg-secondary);
    padding: 12px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.perf-stat-value {
    font-size: 20px;
    font-weight: 600;
}

.perf-stat-label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-top: 4px;
}

@media (max-width: 640px) {
    .container {
        padding: 16px;
    }

    h1 {
        font-size: 20px;
    }

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

    button {
        width: 100%;
    }

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

    .result-actions {
        margin-left: 0;
        margin-top: 8px;
        width: 100%;
    }

    .result-btn {
        flex: 1;
    }

    .device-info {
        flex-direction: column;
    }
}

footer {
    text-align: center;
    padding: 24px;
    font-size: 12px;
    color: var(--text-secondary);
}

footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

footer a:hover {
    color: var(--text-primary);
}