/* Reset y variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a1628;
    --bg-secondary: #1a2744;
    --bg-tertiary: #2a3a5c;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-gold: #d4a574;
    --accent-gold-hover: #c49464;
    --accent-green: #22c55e;
    --accent-green-light: #4ade80;
    --accent-amber: #f59e0b;
    --border-color: #3d5a80;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --radius: 8px;
    --radius-lg: 12px;
}

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

/* App Container */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 300px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
}

.sidebar-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--accent-gold);
}

.subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Progress Bar */
.progress-container {
    margin-top: 1rem;
}

.progress-bar {
    height: 8px;
    background-color: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-green));
    border-radius: 4px;
    width: 0%;
    transition: width 0.5s ease;
}

.progress-text {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    text-align: center;
}

/* Sections Navigation */
.sections-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.section-group {
    margin-bottom: 0.25rem;
}

.section-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background-color: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius);
    transition: background-color 0.2s;
}

.section-header:hover {
    background-color: var(--bg-tertiary);
}

.section-icon {
    font-size: 0.7rem;
    color: var(--text-muted);
    transition: transform 0.2s;
}

.section-title {
    flex: 1;
    text-align: left;
}

.section-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    background-color: var(--bg-primary);
    padding: 0.125rem 0.5rem;
    border-radius: 10px;
}

/* Section Items */
.section-items {
    max-height: 1000px;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.section-items.collapsed {
    max-height: 0;
}

.section-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem 0.5rem 2rem;
    cursor: pointer;
    border-radius: var(--radius);
    transition: background-color 0.2s;
    font-size: 0.85rem;
}

.section-item:hover {
    background-color: var(--bg-tertiary);
}

.section-item.active {
    background-color: var(--accent-gold);
    color: var(--bg-primary);
}

.section-item.active .item-title {
    color: var(--bg-primary);
}

.section-item.completed .item-check {
    color: var(--accent-green);
}

.item-check {
    width: 18px;
    color: var(--text-muted);
}

.item-number {
    font-weight: 500;
    min-width: 24px;
}

.item-title {
    color: var(--text-secondary);
    font-size: 0.8rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 200;
    width: 40px;
    height: 40px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--text-primary);
    transition: transform 0.2s;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 300px;
    padding: 2rem;
    max-width: 900px;
}

.section-view {
    max-width: 800px;
    margin: 0 auto;
}

/* Section Header */
.section-header-main {
    margin-bottom: 2rem;
}

.nav-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.nav-btn {
    width: 40px;
    height: 40px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s, transform 0.1s;
}

.nav-btn:hover {
    background-color: var(--bg-tertiary);
}

.nav-btn:active {
    transform: scale(0.95);
}

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

.section-title-main {
    flex: 1;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent-gold);
}

.section-status {
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-content: center;
}

/* Custom Checkbox */
.checkbox-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-container input {
    display: none;
}

.checkmark {
    width: 22px;
    height: 22px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.checkbox-container input:checked + .checkmark {
    background-color: var(--accent-green);
    border-color: var(--accent-green);
}

.checkbox-container input:checked + .checkmark::after {
    content: '✓';
    color: white;
    font-size: 14px;
    font-weight: bold;
}

.checkbox-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.date-completed {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Sections */
.manuscript-section,
.description-section,
.recording-section,
.notes-section,
.score-photo-section {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.manuscript-section h3,
.description-section h3,
.recording-section h3,
.notes-section h3,
.score-photo-section h3 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Manuscript */
.manuscript-container {
    background-color: #f5f0e6;
    border-radius: var(--radius);
    padding: 1rem;
    text-align: center;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.manuscript-container img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

/* Description */
#sectionDescription {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Recording */
.recording-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius);
    transition: border-color 0.2s;
}

.upload-area:hover {
    border-color: var(--accent-gold);
}

.upload-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-gold);
    border: none;
    border-radius: var(--radius);
    color: var(--bg-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.upload-btn:hover {
    background-color: var(--accent-gold-hover);
}

.upload-icon {
    font-size: 1.2rem;
}

.upload-hint {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.player-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius);
}

.player-container audio {
    flex: 1;
    height: 40px;
}

.remove-audio-btn {
    width: 32px;
    height: 32px;
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.remove-audio-btn:hover {
    background-color: #ef4444;
    border-color: #ef4444;
    color: white;
}

/* Notes */
#notesTextarea {
    width: 100%;
    min-height: 150px;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    line-height: 1.6;
    resize: vertical;
    transition: border-color 0.2s;
}

#notesTextarea:focus {
    outline: none;
    border-color: var(--accent-gold);
}

#notesTextarea::placeholder {
    color: var(--text-muted);
}

.notes-footer {
    margin-top: 0.5rem;
    text-align: right;
}

.autosave-indicator {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.autosave-indicator.saving {
    color: var(--accent-amber);
}

.autosave-indicator.saved {
    color: var(--accent-green);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .mobile-menu-btn {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding: 1rem;
        padding-top: 4rem;
    }

    .section-title-main {
        font-size: 1.2rem;
    }

    .nav-buttons {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Overlay for mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 90;
}

.sidebar-overlay.active {
    display: block;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}

/* Backup Buttons */
.backup-buttons {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.backup-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0.5rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.backup-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.backup-btn span {
    font-size: 0.9rem;
}

/* Notifications */
.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.9rem;
    box-shadow: var(--shadow);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

.notification-success {
    border-left: 4px solid var(--accent-green);
}

.notification-error {
    border-left: 4px solid #ef4444;
}

.notification-info {
    border-left: 4px solid var(--accent-gold);
}

/* Audio Options */
.audio-options {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem;
}

.audio-separator {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.record-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: #dc2626;
    border: none;
    border-radius: var(--radius);
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.record-btn:hover {
    background-color: #b91c1c;
}

.record-icon {
    font-size: 1.2rem;
}

/* Recorder Active State */
.recorder-active {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
}

.recording-indicator {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    background-color: rgba(220, 38, 38, 0.1);
    border-radius: var(--radius);
}

.rec-dot {
    width: 12px;
    height: 12px;
    background-color: #dc2626;
    border-radius: 50%;
    animation: pulse-rec 1s ease-in-out infinite;
}

@keyframes pulse-rec {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.rec-text {
    color: #dc2626;
    font-weight: 600;
    font-size: 0.9rem;
}

.rec-time {
    color: var(--text-primary);
    font-family: monospace;
    font-size: 1.1rem;
}

.stop-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 2rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.stop-btn:hover {
    background-color: var(--border-color);
}

.stop-btn span {
    font-size: 0.8rem;
}

/* Score Photo Section */
.photo-upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius);
    transition: border-color 0.2s;
}

.photo-upload-area:hover {
    border-color: var(--accent-gold);
}

.photo-upload-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-gold);
    border: none;
    border-radius: var(--radius);
    color: var(--bg-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.photo-upload-btn:hover {
    background-color: var(--accent-gold-hover);
}

.photo-icon {
    font-size: 1.2rem;
}

.photo-preview-container {
    position: relative;
}

.photo-preview-container img {
    width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: var(--radius);
    background-color: var(--bg-tertiary);
}

.remove-photo-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 32px;
    height: 32px;
    background-color: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: background-color 0.2s;
}

.remove-photo-btn:hover {
    background-color: #ef4444;
}

/* Mobile backup buttons */
@media (max-width: 768px) {
    .backup-buttons {
        flex-direction: column;
    }

    .notification {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
    }

    .audio-options {
        flex-direction: column;
        gap: 0.75rem;
    }

    .audio-separator {
        display: none;
    }
}