/* Main Layout */
main {
    flex: 1;
    display: flex;
    position: relative;
    overflow: hidden;
}

.sidebar {
    background: var(--sidebar-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 1100;
}

.floating-panel {
    position: absolute;
    top: 16px;
    left: 16px;
    width: 210px;
    max-height: calc(100vh - var(--timeline-offset) - 40px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    gap: var(--spacing-md);
    z-index: 2000;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1), max-height 0.3s ease;
    opacity: 1;
    transform: translateX(0);
    overflow-y: auto;
    overflow-x: hidden;
}

/* Specific fix for the left floating sidebar */
#left-sidebar.floating-panel {
    max-height: calc(100vh - var(--timeline-offset) - 32px) !important;
}

.floating-panel.hidden {
    opacity: 0;
    transform: translateX(-20px);
    pointer-events: none;
}

/* .sidebar.collapsed is deprecated for floating UI */

.code-sidebar {
    position: relative;
    height: 100%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-right: none;
    border-left: 1px solid var(--border-color);
    width: 420px;
    gap: 0 !important;
    padding: 0 !important;
    flex-shrink: 0;
}

.code-sidebar.collapsed {
    width: 0 !important;
    padding: 0;
}

/* Sidebar Resizer */
.resizer {
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    cursor: col-resize;
    z-index: 1000;
    transition: background 0.2s, opacity 0.2s;
    opacity: 0;
}

.resizer:hover {
    opacity: 1;
    background: var(--primary-color);
}

.resizer.dragging {
    opacity: 1;
    background: var(--primary-color);
    width: 6px;
}

.sidebar.no-transition {
    transition: none !important;
}

/* Sidebar Logo */
.logo-sidebar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0 4px var(--spacing-sm) 4px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0px;
}

.logo-sidebar .icon {
    font-size: 1.2rem;
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.5));
}

.logo-sidebar h1 {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: -0.3px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-sidebar span {
    color: var(--primary-color);
}

/* Sidebar Toggle Buttons */
.sidebar-toggle {
    position: absolute;
    top: 20px;
    width: 28px;
    height: 28px;
    background: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 110;
    transition: all 0.2s;
    box-shadow: var(--shadow-md);
}

#toggle-left-sidebar { right: 12px; }
#toggle-right-sidebar { left: 12px; }

.sidebar-toggle:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.collapsed .sidebar-toggle svg {
    transform: rotate(180deg);
}

/* Floating Pull Buttons when sidebars are collapsed */
.sidebar-pull-btn {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 64px;
    background: var(--sidebar-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 90;
    color: var(--text-color);
}

.sidebar-pull-btn.left { left: 0; border-radius: 0 8px 8px 0; border-left: none; }
.sidebar-pull-btn.right { right: 0; border-radius: 8px 0 0 8px; border-right: none; }

/* Grid Floating UI */
.bottom-left-controls {
    position: absolute;
    bottom: calc(var(--timeline-offset) + 20px);
    left: 24px;
    z-index: 100;
    display: flex;
    flex-direction: column-reverse;
    align-items: flex-start;
    gap: 12px;
    transition: bottom 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.grid-fab {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--secondary-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: var(--shadow-lg);
}

.grid-fab:hover {
    background: var(--primary-color);
    transform: scale(1.05) translateY(-2px);
    color: white;
}

.grid-fab.active {
    background: var(--primary-color);
    color: white;
}

.grid-popup {
    width: 220px;
    padding: 20px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    background: rgba(15, 23, 42, 0.85); /* Slightly darker for contrast */
    backdrop-filter: blur(16px);
    box-shadow: 0 10px 40px rgba(0,0,0,0.4);
    transform-origin: bottom left;
    transition: all 0.3s cubic-bezier(0.19, 1, 0.22, 1);
}

.grid-popup.hidden {
    display: none;
    opacity: 0;
    transform: scale(0.9) translateY(10px);
}

.popup-header h4 {
    margin: 0 0 16px 0;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.grid-settings-body .prop-group {
    margin-bottom: 12px;
}

.grid-settings-body .prop-group:last-child {
    margin-bottom: 0;
}

.grid-settings-body label {
    font-size: 0.8rem;
    display: block;
    margin-bottom: 6px;
    color: var(--text-color);
}

.grid-settings-body select, 
.grid-settings-body input[type="number"] {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 6px 10px;
    border-radius: 6px;
    color: var(--text-color);
    font-size: 0.85rem;
}

.grid-settings-body .row {
    display: flex;
    gap: 10px;
}

.grid-settings-body .input-with-label {
    flex: 1;
}