/* =============================================
   LRC Lyrics Maker - CSS Styles
   ============================================= */

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

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a2332;
    --bg-input: #0d1320;
    --border-color: #2a3a50;
    --text-primary: #ffffff;
    --text-secondary: #8b9cb5;
    --accent-primary: #d4a024;
    --accent-secondary: #e8b830;
    --accent-gradient: linear-gradient(135deg, #e8b830 0%, #d4a024 100%);
    --success-color: #22c55e;
    --error-color: #ff6b6b;
    --warning-color: #ffd93d;
    --sync-color: #3b82f6;
    --synced-color: #22c55e;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 700px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    flex-wrap: wrap;
    gap: 15px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 8px 32px rgba(212, 160, 36, 0.3);
}

.logo-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-title .highlight {
    color: var(--accent-primary);
}

.logo-subtitle {
    font-size: 10px;
    color: var(--text-secondary);
    letter-spacing: 2px;
    font-weight: 500;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 8px;
    background: var(--bg-card);
    padding: 6px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
}

.lang-btn:hover {
    background: var(--bg-input);
}

.lang-btn.active {
    background: var(--accent-gradient);
    color: var(--bg-primary);
}

.lang-btn .flag {
    font-size: 18px;
}

.lang-btn .lang-code {
    font-size: 12px;
    font-weight: 600;
}

.flag-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
    border-radius: 2px;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Upload Section */
.upload-section {
    margin-bottom: 10px;
}

.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-card);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--accent-primary);
    background: rgba(212, 160, 36, 0.05);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 15px;
    opacity: 0.7;
}

.upload-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 5px;
}

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

.filename {
    margin-top: 15px;
    font-size: 14px;
    color: var(--accent-primary);
    font-weight: 500;
    word-break: break-all;
}

/* Import Section */
.import-section {
    text-align: center;
    padding: 15px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.import-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.import-btn:hover {
    border-color: var(--accent-primary);
    background: rgba(212, 160, 36, 0.1);
}

.import-icon {
    font-size: 18px;
}

/* Player Section */
.player-section {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.metadata-display {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    gap: 8px;
}

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

.meta-value {
    color: var(--accent-primary);
    font-size: 13px;
    font-weight: 600;
}

.meta-input {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--accent-primary);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 8px;
    min-width: 150px;
}

.meta-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.player-controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.play-btn {
    background: var(--accent-gradient);
    color: var(--bg-primary);
    border: none;
    padding: 14px 30px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(212, 160, 36, 0.3);
}

.play-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(212, 160, 36, 0.4);
}

.progress-container {
    width: 100%;
}

.progress-bar {
    width: 100%;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-input);
    border-radius: 4px;
    outline: none;
    cursor: pointer;
}

.progress-bar::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(212, 160, 36, 0.5);
}

.progress-bar::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.time-display {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.speed-control {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}

.speed-control select {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px 10px;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
}

/* Editor Section */
.editor-section {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.section-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-primary);
    letter-spacing: 2px;
}

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

.action-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.action-btn:hover {
    border-color: var(--error-color);
    color: var(--error-color);
}

.editor-instructions {
    background: rgba(212, 160, 36, 0.1);
    padding: 12px 15px;
    border-radius: 10px;
    margin-bottom: 15px;
    font-size: 13px;
    color: var(--text-secondary);
    border-left: 3px solid var(--accent-primary);
}

.editor-instructions kbd {
    background: var(--bg-card);
    padding: 3px 8px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 12px;
    border: 1px solid var(--border-color);
}

/* Lyrics Input Area */
.lyrics-input-area {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.lyrics-input-area textarea {
    width: 100%;
    min-height: 200px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 15px;
    font-size: 14px;
    color: var(--text-primary);
    font-family: inherit;
    resize: vertical;
    line-height: 1.8;
}

.lyrics-input-area textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(212, 160, 36, 0.1);
}

.lyrics-input-area textarea::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.parse-btn {
    align-self: flex-end;
    padding: 12px 24px;
    background: var(--accent-gradient);
    color: var(--bg-primary);
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.parse-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(212, 160, 36, 0.3);
}

/* Sync Area */
.sync-area {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.sync-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.sync-btn {
    flex: 1;
    min-width: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 24px;
    background: var(--sync-color);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.sync-btn:hover:not(:disabled) {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

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

.sync-icon {
    font-size: 20px;
}

.skip-btn {
    padding: 16px 24px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.skip-btn:hover:not(:disabled) {
    border-color: var(--warning-color);
    color: var(--warning-color);
}

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

.back-btn {
    padding: 16px 24px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.back-btn:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

.current-line-indicator {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    padding: 10px;
    background: var(--bg-card);
    border-radius: 8px;
}

.current-line-indicator span:first-child {
    margin-right: 8px;
}

/* Lyrics Lines */
.lyrics-lines {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 400px;
    overflow-y: auto;
    padding: 10px;
    background: var(--bg-input);
    border-radius: 12px;
}

.lyric-line {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    background: var(--bg-card);
    border-radius: 10px;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

.lyric-line.current {
    border-color: var(--sync-color);
    background: rgba(59, 130, 246, 0.1);
}

.lyric-line.synced {
    border-color: var(--synced-color);
}

.lyric-line.synced .line-timestamp {
    color: var(--synced-color);
}

.line-number {
    min-width: 30px;
    font-size: 12px;
    color: var(--text-muted, #666);
    font-weight: 600;
}

.line-timestamp {
    min-width: 70px;
    font-size: 13px;
    font-family: monospace;
    color: var(--text-secondary);
    padding: 4px 8px;
    background: var(--bg-input);
    border-radius: 4px;
}

.line-text {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
}

/* Preview Section */
.preview-section {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.toggle-preview-btn {
    padding: 8px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.toggle-preview-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.preview-content {
    background: var(--bg-input);
    border-radius: 10px;
    padding: 15px;
    max-height: 300px;
    overflow-y: auto;
}

.preview-content pre {
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-size: 12px;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
}

/* Export Section */
.export-section {
    text-align: center;
    padding: 20px;
}

.export-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    background: var(--accent-gradient);
    color: var(--bg-primary);
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 30px rgba(212, 160, 36, 0.35);
}

.export-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 40px rgba(212, 160, 36, 0.45);
}

.export-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.export-icon {
    font-size: 20px;
}

.export-note {
    margin-top: 15px;
    font-size: 13px;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    text-align: center;
    padding: 25px 0;
    margin-top: 20px;
}

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

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 15px 25px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.success {
    border-color: var(--success-color);
}

.toast.error {
    border-color: var(--error-color);
}

/* Export Buttons Container */
.export-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.embed-btn {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%) !important;
}

.embed-btn:hover {
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4) !important;
}

/* Responsive */
@media (max-width: 480px) {
    .container {
        padding: 15px;
    }

    .header {
        justify-content: center;
    }

    .logo {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .logo-text {
        align-items: center;
    }

    .logo-title {
        font-size: 18px;
    }

    .sync-controls {
        flex-direction: column;
    }

    .sync-btn,
    .skip-btn,
    .back-btn {
        width: 100%;
    }

    .lyric-line {
        flex-wrap: wrap;
    }

    .line-text {
        width: 100%;
        margin-top: 8px;
    }
}