/* === SECTION CONTENT STYLES === */
.section-content-wrapper {
    padding: var(--space-lg);
    background: linear-gradient(135deg, var(--surface), var(--bg));
    border-radius: var(--radius-md);
    margin-top: var(--space-md);
}

.exercise-list {
    display: grid;
    gap: var(--space-lg);
    margin-top: var(--space-md);
}

.exercise-item {
    background: var(--surface);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--primary);
    transition: all 0.3s ease;
}

.exercise-item:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.15);
}

.exercise-item h5 {
    color: var(--primary);
    margin: 0 0 var(--space-sm) 0;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.exercise-item ul {
    margin: 0;
    padding-left: var(--space-md);
    color: var(--text-secondary);
}

.exercise-item li {
    margin-bottom: var(--space-xs);
    line-height: 1.5;
}

.exercise-item li strong {
    color: var(--text);
    font-weight: 600;
}

/* Practice Section Enhanced Styling */
.practice-section {
    background: linear-gradient(135deg, var(--surface), var(--bg));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.practice-section:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.1);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    cursor: pointer;
    background: linear-gradient(90deg, transparent, rgba(6, 182, 212, 0.05));
    transition: all 0.3s ease;
}

.section-header:hover {
    background: linear-gradient(90deg, rgba(6, 182, 212, 0.05), rgba(6, 182, 212, 0.1));
}

.section-number {
    background: var(--primary);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.section-info {
    flex: 1;
    padding: 0 var(--space-lg);
}

.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--space-xs);
}

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

.section-controls {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.section-timer-display {
    font-family: 'Courier New', monospace;
    background: var(--surface);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    min-width: 60px;
    text-align: center;
    font-weight: 600;
}

.timer-btn {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    border: none;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.timer-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.timer-btn.active {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.section-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.section-content.show {
    max-height: 2000px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .section-header {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .section-controls {
        width: 100%;
        justify-content: center;
    }
    
    .exercise-list {
        grid-template-columns: 1fr;
    }
}

/* === SECTION TABS STYLING === */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: var(--space-lg);
    gap: var(--space-xs);
}

.tab {
    background: var(--surface);
    border: none;
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    transition: all 0.3s ease;
    color: var(--text-secondary);
    font-weight: 500;
}

.tab:hover {
    background: var(--bg);
    color: var(--text);
}

.tab.active {
    background: var(--primary);
    color: white;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(6, 182, 212, 0.3);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === EXERCISE GRIDS === */
.exercise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.exercise-item {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
}

.exercise-item:hover {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--surface), var(--primary-bg));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.15);
}

.exercise-item input[type=checkbox] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

.exercise-item input[type=checkbox]:checked + label,
.exercise-item:has(input[type=checkbox]:checked) {
    background: var(--success-light);
    border-color: var(--success);
    color: var(--success-dark);
}

/* === RHYTHM PATTERNS === */
.rhythm-item {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
}

.rhythm-item:hover {
    border-color: var(--primary);
    background: var(--primary-bg);
}

.rhythm-item.selected {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

/* === KEY SELECTION === */
.key-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-sm);
    margin: var(--space-lg) 0;
}

.key-btn {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    cursor: pointer;
    text-align: center;
    font-weight: 600;
    transition: all 0.3s ease;
}

.key-btn:hover {
    border-color: var(--primary);
    background: var(--primary-bg);
}

.key-btn.selected {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: scale(1.05);
}

/* === MOBILE RESPONSIVE === */
@media (max-width: 768px) {
    .tabs {
        flex-direction: column;
    }
    
    .tab {
        border-radius: var(--radius-sm);
        margin-bottom: var(--space-xs);
    }
    
    .exercise-grid {
        grid-template-columns: 1fr;
    }
    
    .key-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* === MODAL SYSTEM === */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    transition: all 0.3s ease;
}

.modal.hidden {
    opacity: 0;
    visibility: hidden;
    display: none;
}

.modal-content {
    background: linear-gradient(135deg, var(--surface), var(--bg));
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    max-width: 95vw;
    max-height: 90vh;
    width: 800px;
    overflow: hidden;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: scale(0.9) translateY(-20px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--space-xl);
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, var(--primary-bg), transparent);
}

.modal-title {
    color: var(--text);
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-subtitle {
    color: var(--text-secondary);
    margin: var(--space-xs) 0 0 0;
    font-size: 0.9rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: var(--surface);
    color: var(--text);
}

.modal-body {
    padding: var(--space-xl);
    max-height: 60vh;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
    padding: var(--space-xl);
    border-top: 1px solid var(--border);
    background: var(--surface);
}

/* === TAB NAVIGATION === */
.tab-navigation {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: var(--space-lg);
}

.tab-button {
    background: none;
    border: none;
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.tab-button:hover {
    color: var(--text);
    background: var(--surface);
}

.tab-button.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background: var(--primary-bg);
}

.tab-content {
    display: block;
}

.tab-content.hidden {
    display: none;
}

/* === FORM STYLES === */
.content-section {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.section-title {
    color: var(--text);
    margin: 0 0 var(--space-lg) 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group label {
    color: var(--text);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-input, .form-select {
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    color: var(--text);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

textarea.form-input {
    resize: vertical;
    min-height: 80px;
}

.quick-actions {
    text-align: center;
    padding: var(--space-xl);
}

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

.mb-3 {
    margin-bottom: var(--space-lg);
}

/* === MOBILE RESPONSIVE === */
@media (max-width: 768px) {
    .modal-content {
        width: 95vw;
        margin: var(--space-md);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-header, .modal-body, .modal-footer {
        padding: var(--space-lg);
    }
    
    .tab-navigation {
        flex-direction: column;
    }
    
    .tab-button {
        text-align: left;
        border-bottom: 1px solid var(--border);
        border-radius: 0;
    }
}

/* === ALL SESSIONS MODAL === */
.all-sessions-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.session-item {
    transition: all 0.3s ease;
}

.session-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.15);
}

.session-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.session-stats {
    display: flex;
    gap: var(--space-sm);
}

.session-duration, .session-completion {
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.8rem;
}

.session-sections {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-sm);
}

.session-notes {
    background: var(--bg);
    border-left: 3px solid var(--primary);
    padding: var(--space-sm);
    margin-top: var(--space-sm);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: var(--surface);
    color: var(--text);
}

/* Mobile optimization for session modal */
@media (max-width: 768px) {
    .session-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }
    
    .session-stats {
        width: 100%;
        justify-content: space-between;
    }
}

/* === ENHANCED PRACTICE HISTORY STYLES === */
.session-card {
    transition: all 0.3s ease;
}

.session-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.2);
}

.section-edit-card {
    transition: all 0.3s ease;
}

.section-edit-card:hover {
    border-color: var(--primary);
}

.sections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-sm);
}

.session-practice {
    background: var(--primary-bg);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    border-left: 4px solid var(--primary);
}

.session-sections {
    background: var(--surface);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.section-edit-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 600;
    color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg);
    color: var(--text);
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.modal-footer {
    display: flex;
    justify-content: space-between;
    padding: var(--space-lg);
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.btn {
    padding: var(--space-md) var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    font-family: inherit;
}

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

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

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border: 2px solid var(--border);
}

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

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

.btn-danger:hover {
    background: var(--danger-dark);
}

.btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .section-edit-fields {
        grid-template-columns: 1fr;
    }
    
    .sections-grid {
        grid-template-columns: 1fr;
    }
    
    .session-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
    }
    
    .session-actions {
        width: 100%;
        justify-content: center;
    }
    
    .modal-footer {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .modal-content {
        margin: var(--space-md);
        max-width: calc(100vw - 2rem);
    }
}

/* Enhanced animations */
@keyframes modalSlideIn {
    from {
        transform: scale(0.95) translateY(-20px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.modal {
    animation: fadeIn 0.3s ease;
}

.modal-content {
    animation: modalSlideIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}