/* MADOLA Components Styles - UI Components & Interactive Elements */

/* ========================================
   Menu Bar
   ======================================== */

.menubar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface-glass-2);
    color: var(--text-primary);
    padding: 0.85rem 1.25rem;
    border-radius: var(--panel-radius);
    border: 1px solid var(--surface-border);
    box-shadow: var(--shadow-soft);
    backdrop-filter: var(--glass-blur);
    gap: 1.5rem;
}

.menubar-left,
.menubar-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.menubar-left {
    flex: 1;
    min-width: 0;
}

.menubar-brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding-right: 1rem;
    margin-left: -0.5rem;
    border-right: 1px solid rgba(15, 23, 42, 0.08);
}

.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 16px;
    overflow: hidden;
    background: transparent;
    box-shadow: none;
}

.brand-icon img,
.brand-icon svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
    display: block;
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.brand-name {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.brand-tagline {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.menubar-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.menubar-right {
    justify-content: flex-end;
}

.menubar-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(15, 23, 42, 0.08);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #2ecc71;
    box-shadow: 0 0 0 6px rgba(46, 204, 113, 0.15);
}

.status-label {
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.menu-section--compact {
    gap: 0.5rem;
}

.menu-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.menu-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: var(--text-primary);
    padding: 0.5rem 0.95rem;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: transform var(--transition-snappy), box-shadow var(--transition-snappy), background var(--transition-snappy), border-color var(--transition-snappy), color var(--transition-snappy);
    box-shadow: 0 15px 30px -24px rgba(15, 23, 42, 0.45);
    backdrop-filter: saturate(180%) blur(12px);
}

.menu-btn:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.85);
    border-color: rgba(15, 23, 42, 0.14);
    box-shadow: 0 18px 36px -22px rgba(15, 23, 42, 0.28);
}

.menu-btn:active {
    transform: translateY(0);
    background: rgba(255, 255, 255, 0.55);
    box-shadow: 0 10px 20px -18px rgba(15, 23, 42, 0.3);
}

.menu-btn--subtle {
    background: transparent;
    color: var(--text-secondary);
    border-color: rgba(15, 23, 42, 0.12);
    box-shadow: none;
}

.menu-btn--subtle:hover {
    background: rgba(255, 255, 255, 0.4);
    border-color: rgba(15, 23, 42, 0.16);
    color: var(--text-primary);
}

.btn-icon {
    font-size: 1rem;
    opacity: 0.85;
}

/* ========================================
   Sidebar Panel
   ======================================== */

.sidebar-panel {
    display: flex;
    flex-direction: row;
    width: auto;
    background: var(--surface-glass-1);
    color: inherit;
    flex-shrink: 0;
    border-radius: var(--panel-radius);
    border: 1px solid var(--surface-border);
    box-shadow: var(--shadow-soft);
    backdrop-filter: var(--glass-blur);
    overflow: hidden;
}

.sidebar-icon-bar {
    display: flex;
    flex-direction: column;
    width: 64px;
    min-width: 64px;
    background: linear-gradient(200deg, var(--accent-color) 0%, var(--accent-color-hover) 100%);
    flex-shrink: 0;
    box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.12);
}

.sidebar-header {
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    display: flex;
    justify-content: center;
    flex-shrink: 0;
}

.sidebar-toggle-btn {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 6px;
    transition: transform var(--transition-snappy), background var(--transition-snappy);
}

.sidebar-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.16);
    transform: translateY(-1px);
}

.sidebar-tabs {
    display: flex;
    flex-direction: column;
    flex: 1;
    background: transparent;
    padding: 0.5rem;
    gap: 0.5rem;
}

.sidebar-tab {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 0;
    background: rgba(255, 255, 255, 0.08);
    border: none;
    border-radius: 16px;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    font-size: 0.95rem;
    transition: transform var(--transition-snappy), background var(--transition-snappy), color var(--transition-snappy), box-shadow var(--transition-snappy);
    text-align: center;
    flex-shrink: 0;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.sidebar-tab:hover {
    background: rgba(255, 255, 255, 0.16);
    color: rgba(255, 255, 255, 0.92);
    transform: translateY(-1px);
}

.sidebar-tab.active {
    background: rgba(255, 255, 255, 0.28);
    color: white;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35), 0 12px 24px -18px rgba(15, 23, 42, 0.6);
}

.tab-icon {
    font-size: 1.35rem;
}

.sidebar-content-panel {
    width: 0;
    min-width: 0;
    max-width: 0;
    overflow: hidden;
    background: var(--surface-glass-2);
    transition: width 0.3s ease, min-width 0.3s ease, max-width 0.3s ease;
    display: flex;
    flex-direction: column;
    color: var(--text-primary);
    box-shadow: 
        inset 1px 0 0 rgba(255, 255, 255, 0.5), 
        10px 0 30px -10px rgba(0,0,0,0.05);
    border-right: 1px solid var(--surface-border);
}

.sidebar-content-panel.expanded {
    width: 260px;
    min-width: 160px;
    max-width: 420px;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
}

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

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

.sidebar-content-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--surface-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-content-header h3 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin: 0;
    letter-spacing: 0.04em;
}

.sidebar-tab-content h4 {
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    letter-spacing: 0.6px;
    font-weight: 600;
}

/* Formatting Toolbar */
.formatting-toolbar {
    margin-bottom: 1.5rem;
}

.formatting-toolbar h4 {
    margin-top: 1rem;
}

.formatting-toolbar h4:first-child {
    margin-top: 0;
}

.toolbar-buttons {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    flex-wrap: wrap;
}

.greek-symbols {
    margin-top: 1rem;
}

.greek-symbols h4 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

/* Settings Content */
.settings-content {
    color: var(--text-primary);
}

.setting-item {
    margin-bottom: 1rem;
}

.setting-item label {
    display: block;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-primary); /* Updated to text-primary for better visibility */
    font-weight: 600;
}

/* Theme Toggle */
.menu-btn--icon {
    padding: 0;
    width: 44px;
    height: 44px;
    justify-content: center;
    gap: 0;
}

.theme-toggle-btn {
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(15, 23, 42, 0.08);
}

.theme-toggle-btn:hover {
    background: rgba(15, 23, 42, 0.12);
    border-color: rgba(15, 23, 42, 0.15);
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.theme-toggle-icon {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
    color: var(--text-primary);
}

.theme-toggle-btn:active .theme-toggle-icon {
    transform: rotate(180deg);
}

/* Color Theme Buttons */
.color-theme-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
    gap: 0.55rem;
}

.color-theme-btn {
    width: 100%;
    height: 42px;
    border: 2px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: transform var(--transition-snappy), box-shadow var(--transition-snappy), border-color var(--transition-snappy);
    position: relative;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.color-theme-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.color-theme-btn.active {
    border-color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.5), 0 4px 12px rgba(0, 0, 0, 0.2);
    transform: translateY(-1px) scale(1.03);
}

.color-theme-btn.active::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

/* About Content */
.about-content {
    color: var(--text-primary);
    line-height: 1.6;
}

.about-content p {
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.about-content ul {
    margin-left: 1.25rem;
    margin-top: 0.5rem;
}

.about-content li {
    margin-bottom: 0.4rem;
    font-size: 0.85rem;
}

/* AI Placeholder */
.ai-placeholder {
    color: var(--text-secondary);
    text-align: center;
    padding: 2rem 1rem;
}

.ai-placeholder p {
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 0.5rem;
}

/* ========================================
   Buttons & Controls
   ======================================== */

.editor-controls, .output-controls {
    display: flex;
    gap: 0.5rem;
}

.control-btn {
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: var(--text-primary);
    padding: 0.45rem 0.9rem;
    border-radius: var(--control-radius);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: transform var(--transition-snappy), background var(--transition-snappy), border-color var(--transition-snappy), box-shadow var(--transition-snappy), color var(--transition-snappy);
    box-shadow: 0 15px 32px -24px rgba(15, 23, 42, 0.38);
    backdrop-filter: saturate(180%) blur(12px);
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(15, 23, 42, 0.16);
    transform: translateY(-1px);
    box-shadow: 0 18px 36px -22px rgba(15, 23, 42, 0.28);
}

.control-btn.primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-color-hover) 100%);
    border-color: rgba(255, 255, 255, 0.28);
    color: white;
    box-shadow: 0 18px 40px -22px rgba(52, 152, 219, 0.6);
}

.control-btn.primary:hover {
    background: linear-gradient(135deg, var(--accent-color-hover) 0%, var(--accent-color) 100%);
    transform: translateY(-1px);
    box-shadow: 0 22px 48px -20px rgba(41, 128, 185, 0.55);
}

.control-btn:active {
    transform: translateY(0);
    box-shadow: 0 12px 24px -20px rgba(15, 23, 42, 0.3);
}

.format-btn {
    background: rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: #0f172a; /* Hardcoded dark color to ensure visibility in light mode */
    padding: 0.25rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 700;
    transition: transform var(--transition-snappy), background var(--transition-snappy), border-color var(--transition-snappy), box-shadow var(--transition-snappy);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    min-width: 32px;
    padding: 0 0.4rem;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.format-btn strong,
.format-btn em,
.format-btn span {
    color: inherit;
}

.format-btn:hover {
    background: rgba(15, 23, 42, 0.12);
    border-color: rgba(15, 23, 42, 0.15);
    transform: translateY(-1px);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1), 0 4px 12px rgba(0, 0, 0, 0.1);
    color: #000000;
}

.clear-btn {
    background: rgba(231, 76, 60, 0.12);
    border: 1px solid rgba(231, 76, 60, 0.3);
    color: #e74c3c;
    font-size: 0.8rem;
    cursor: pointer;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    transition: transform var(--transition-snappy), background var(--transition-snappy), box-shadow var(--transition-snappy), border-color var(--transition-snappy);
    font-weight: 500;
}

.clear-btn:hover {
    background: rgba(231, 76, 60, 0.2);
    border-color: rgba(231, 76, 60, 0.38);
    transform: translateY(-1px);
    box-shadow: 0 14px 28px -24px rgba(231, 76, 60, 0.45);
}

.refresh-btn {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    padding: 5px;
    opacity: 0.7;
    transition: opacity 0.2s, transform 0.2s;
    color: var(--text-secondary);
}

.refresh-btn:hover {
    opacity: 1;
    transform: rotate(90deg);
    color: var(--text-primary);
}

/* ========================================
   Symbol & Greek Letter Buttons
   ======================================== */

.symbol-grid-compact {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(28px, 1fr));
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.symbol-btn-sm {
    background: rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 8px;
    padding: 0.25rem;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    color: #0f172a; /* Hardcoded dark color */
    display: flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    width: 100%;
    transition: transform var(--transition-snappy), background var(--transition-snappy), border-color var(--transition-snappy), box-shadow var(--transition-snappy);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.symbol-btn-sm:hover {
    background: rgba(15, 23, 42, 0.12);
    border-color: rgba(15, 23, 42, 0.15);
    transform: translateY(-1px);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1), 0 4px 12px rgba(0, 0, 0, 0.1);
    color: #000000;
}

.symbol-btn-sm:active {
    transform: translateY(0);
}

/* ========================================
   Tab System
   ======================================== */

.tab-container {
    display: inline-flex;
    gap: 0.35rem;
    background: rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 999px;
    padding: 0.35rem;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 0.55rem 1.15rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 999px;
    transition: color var(--transition-snappy), background var(--transition-snappy), box-shadow var(--transition-snappy), transform var(--transition-snappy);
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.6);
    transform: translateY(-1px);
}

.tab-btn.active {
    color: white;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-color-hover) 100%);
    box-shadow: 0 18px 36px -20px rgba(41, 128, 185, 0.45);
    transform: translateY(-1px);
    font-weight: 600;
}

.tab-content {
    display: none;
    flex: 1;
    overflow: hidden;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
}

/* ========================================
   Select Dropdowns
   ======================================== */

.example-selector {
    display: flex;
    align-items: center;
}

.example-select {
    padding: 0.55rem 0.9rem;
    border: 1px solid rgba(15, 23, 42, 0.12);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.92);
    font-size: 0.9rem;
    min-width: 200px;
    cursor: pointer;
    transition: border-color var(--transition-snappy), box-shadow var(--transition-snappy), background var(--transition-snappy);
    box-shadow: 0 12px 25px -22px rgba(15, 23, 42, 0.35);
}

.example-select:focus {
    outline: none;
    border-color: rgba(52, 152, 219, 0.65);
    box-shadow: 0 0 0 4px rgba(52, 152, 219, 0.18);
}

/* ========================================
   Resize Handles
   ======================================== */

.resize-handle {
    width: 6px;
    background: rgba(15, 23, 42, 0.08);
    cursor: col-resize;
    position: relative;
    flex-shrink: 0;
    transition: background var(--transition-snappy), box-shadow var(--transition-snappy);
    border-radius: 999px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.resize-handle::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 32px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.12);
}

.resize-handle:hover {
    background: var(--accent-color);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.32), 0 0 0 4px rgba(52, 152, 219, 0.12);
}

.resize-handle.resizing {
    background: var(--accent-color-hover);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.resize-handle.hidden {
    width: 0;
    visibility: hidden;
    opacity: 0;
}

/* ========================================
   Modals
   ======================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 21, 37, 0.55);
    backdrop-filter: blur(16px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 2rem;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: rgba(255, 255, 255, 0.92);
    border-radius: 24px;
    box-shadow: 0 36px 68px -32px rgba(15, 23, 42, 0.55);
    border: 1px solid rgba(15, 23, 42, 0.08);
    max-width: 520px;
    width: min(520px, 100%);
    max-height: 80vh;
    overflow-y: auto;
    backdrop-filter: var(--glass-blur);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 1.75rem;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.modal-header h2, .modal-header h3 {
    color: var(--text-primary);
    font-size: 1.35rem;
    letter-spacing: 0.02em;
    margin: 0;
}

.close-btn {
    background: rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(15, 23, 42, 0.12);
    font-size: 1.35rem;
    cursor: pointer;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    transition: transform var(--transition-snappy), background var(--transition-snappy), border-color var(--transition-snappy), box-shadow var(--transition-snappy), color var(--transition-snappy);
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.78);
    border-color: rgba(15, 23, 42, 0.18);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: 0 16px 30px -24px rgba(15, 23, 42, 0.4);
}

.modal-body {
    padding: 1.5rem 1.75rem 1.75rem;
}

.modal-body p {
    margin-bottom: 1rem;
}

.modal-body ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.modal-body li {
    margin-bottom: 0.5rem;
}

/* Code Modal */
.code-modal {
    display: none;
    z-index: 10000;
}

.code-modal .modal-content {
    width: min(900px, 90%);
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.code-modal .modal-header {
    padding: 1.25rem 1.5rem;
}

.code-modal .modal-header h3 {
    font-size: 1.05rem;
    font-weight: 600;
}

.code-modal .modal-body {
    padding: 1.25rem 1.5rem 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.code-modal .modal-body pre {
    background: rgba(15, 23, 42, 0.04);
    padding: 1rem;
    border-radius: 16px;
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    margin: 0;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

/* ========================================
   File Browser & C++ Files
   ======================================== */

.cpp-files-container {
    display: flex;
    flex: 1;
    height: 100%;
    overflow: hidden;
    gap: 1.25rem;
    padding: 1.25rem;
}

.cpp-files-sidebar {
    width: 260px;
    background: rgba(255, 255, 255, 0.82);
    display: flex;
    flex-direction: column;
    border-radius: 20px;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 22px 48px -30px rgba(15, 23, 42, 0.4);
    backdrop-filter: var(--glass-blur);
}

.cpp-files-sidebar h4 {
    padding: 1rem 1.25rem;
    margin: 0;
    background: transparent;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    font-size: 0.9rem;
    color: var(--text-primary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.file-list {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.file-section {
    margin-bottom: 14px;
}

.sidebar-content-panel .section-header,
.section-header {
    display: flex;
    align-items: center;
    padding: 0.55rem 0.75rem;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 12px;
    cursor: pointer;
    user-select: none;
    transition: transform var(--transition-snappy), background var(--transition-snappy), box-shadow var(--transition-snappy);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.sidebar-content-panel .section-header:hover,
.section-header:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.sidebar-content-panel .toggle-icon,
.toggle-icon {
    margin-right: 6px;
    font-size: 10px;
    transition: transform var(--transition-snappy);
}

.sidebar-content-panel .section-title,
.section-title {
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.sidebar-content-panel .file-item,
.file-item {
    display: flex;
    align-items: center;
    padding: 0.6rem 0.85rem;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: transform var(--transition-snappy), background var(--transition-snappy), border-color var(--transition-snappy), box-shadow var(--transition-snappy), color var(--transition-snappy);
    gap: 0.6rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
    color: var(--text-primary);
}

.sidebar-content-panel .file-item {
    padding: 0.45rem 0.65rem;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.file-item:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.sidebar-content-panel .file-item:hover {
    background: rgba(255, 255, 255, 0.6);
    border-color: rgba(255, 255, 255, 0.7);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
}

.file-item.selected {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-color-hover) 100%);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.file-item.empty,
.sidebar-content-panel .file-item.empty {
    color: var(--text-secondary);
    font-style: italic;
    cursor: default;
}

.file-item.empty:hover,
.sidebar-content-panel .file-item.empty:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: none;
    box-shadow: none;
}

.file-icon {
    font-size: 0.85rem;
    opacity: 0.8;
    margin-right: 6px;
}

.sidebar-content-panel .file-icon {
    font-size: 0.9rem;
}

.file-name,
.sidebar-content-panel .file-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-size,
.sidebar-content-panel .file-size {
    margin-left: 8px;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.no-files-message {
    padding: 2rem 1.25rem;
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    font-size: 0.85rem;
    background: rgba(15, 23, 42, 0.03);
    border-radius: 14px;
    border: 1px dashed rgba(15, 23, 42, 0.08);
}

.cpp-file-viewer {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 20px;
    box-shadow: 0 22px 48px -30px rgba(15, 23, 42, 0.4);
    backdrop-filter: var(--glass-blur);
}

.cpp-file-header {
    padding: 0.85rem 1.25rem;
    background: rgba(255, 255, 255, 0.6);
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--text-primary);
    letter-spacing: 0.03em;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cpp-editor-container {
    flex: 1;
    overflow: hidden;
    background: transparent;
    position: relative;
    padding: 1.25rem;
    display: flex;
}

.cpp-editor {
    width: 100%;
    height: 100%;
}

.cpp-placeholder {
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
    padding: 2.5rem;
    background: rgba(15, 23, 42, 0.03);
    border: 1px dashed rgba(15, 23, 42, 0.08);
    border-radius: 18px;
    width: 100%;
}

.monaco-editor {
    border: none !important;
    border-radius: 18px;
    overflow: hidden;
    background: transparent !important;
}

/* ========================================
   Messages
   ======================================== */

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
}

.message {
    padding: 0.25rem 0.5rem;
    margin-bottom: 0.25rem;
    font-size: 0.75rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', monospace;
    color: var(--text-primary);
    background: transparent;
    border: none;
    border-left: 2px solid transparent;
}

.message.info {
    color: #2980b9;
    border-left-color: #3498db;
}

.message.success {
    color: #219150;
    border-left-color: #27ae60;
}

.message.warning {
    color: #d35400;
    border-left-color: #f39c12;
}

.message.error {
    color: #c0392b;
    border-left-color: #e74c3c;
}