/* Infinite Canvas Core Stylesheet */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap");

:root {
    /* Premium Palette */
    --bg-primary: #07090e;
    --bg-secondary: #0c0f17;
    --border-glass: rgba(255, 255, 255, 0.07);
    --border-active: rgba(255, 255, 255, 0.15);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Color Presets */
    --color-cyan: #00f2fe;
    --color-purple: #bd00ff;
    --color-emerald: #00e676;
    --color-rose: #ff2a6d;
    --color-amber: #ff9100;
    --color-sapphire: #0055ff;
    --color-orange: #ff5e00;
    --color-yellow: #ffe600;
    --color-fuchsia: #ff00aa;
    --color-lime: #77ff00;

    /* Layout Controls */
    --sidebar-width: 320px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
}

input,
textarea,
[contenteditable="true"] {
    user-select: text;
    -webkit-user-select: text;
}

body {
    font-family: "Inter", sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

/* Viewport and Canvas container */
.canvas-viewport {
    width: 100%;
    flex: 1;
    position: relative;
    overflow: hidden;
    cursor: grab;
    /* Dotted infinite background grid */
    background-image: radial-gradient(
        rgba(255, 255, 255, 0.08) 1.5px,
        transparent 1.5px
    );
    background-size: var(--grid-size, 32px) var(--grid-size, 32px);
    background-position: var(--grid-x, 0px) var(--grid-y, 0px);
    transition: background-color 0.3s ease;
}

.canvas-viewport:active {
    cursor: grabbing;
}

.canvas-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 0;
    transform-origin: 0 0;
    will-change: transform;
}

/* Connection SVGs */
.connections-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100000px;
    height: 100000px;
    transform: translate(-50000px, -50000px);
    pointer-events: none;
    z-index: 1;
}

.connections-svg path {
    fill: none;
    stroke: var(--link-color, rgba(148, 163, 184, 0.6));
    stroke-width: 3.5px;
    transition:
        stroke 0.2s ease,
        stroke-width 0.2s ease;
    pointer-events: none;
}

.connections-svg path.interaction-path {
    stroke-width: 14px;
    stroke: transparent !important;
    pointer-events: stroke;
    cursor: pointer;
    filter: none !important;
    opacity: 0;
}

.connections-svg path.hovered {
    stroke-width: 5.5px;
    stroke: var(--link-color-hover, rgba(148, 163, 184, 0.95));
}

.connections-svg path.active-drag {
    stroke: var(--color-cyan);
    stroke-dasharray: 6, 4;
    animation: connectionFlow 1s linear infinite;
    opacity: 0.8;
    pointer-events: none;
}

.connections-svg line.snap-guide-line {
    stroke: var(--theme-color, var(--color-rose));
    stroke-width: 1.5px;
    stroke-dasharray: 5, 4;
    opacity: 0.95;
    pointer-events: none;
}

@keyframes connectionFlow {
    to {
        stroke-dashoffset: -20;
    }
}

/* Card/Idea Node styling */
.idea-card {
    display: flex;
    flex-direction: column;
    position: absolute;
    min-width: 240px;
    background: rgba(12, 15, 23, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1.5px solid var(--border-glass);
    border-radius: 14px;
    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    padding: 16px;
    cursor: move;
    z-index: 10;
    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        transform 0.15s ease;
    transform-origin: center center;
}

/* Theme presets border & glow on hover */
.idea-card:hover,
.idea-card.selected {
    border-color: var(--theme-color, var(--color-cyan));
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.5),
        0 0 16px rgba(var(--theme-rgb, 0, 242, 254), 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transform: scale(1.01);
}

.idea-card.multi-selected {
    border-color: var(--theme-color, var(--color-cyan)) !important;
    border-style: dashed !important;
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(var(--theme-rgb, 0, 242, 254), 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transform: scale(1.01);
}

.idea-card.dragging {
    opacity: 0.85;
    transform: scale(1.02);
    z-index: 100;
}

/* Card Header */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    gap: 8px;
    flex-shrink: 0;
}

.card-title {
    font-family: "Outfit", sans-serif;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    flex-grow: 1;
    min-width: 0;
    border: none;
    background: transparent;
    outline: none;
    padding: 2px 4px;
    border-radius: 4px;
    cursor: text;
    user-select: text;
    -webkit-user-select: text;
}

.card-title:focus {
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 0 1px var(--border-active);
}

/* Card Controls */
.card-controls {
    display: flex;
    gap: 6px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.idea-card:hover .card-controls {
    opacity: 1;
}

.card-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.card-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.card-btn.btn-delete:hover {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

/* Card content */
.card-body {
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-secondary);
    outline: none;
    padding: 4px;
    border-radius: 4px;
    word-wrap: break-word;
    cursor: text;
    user-select: text;
    -webkit-user-select: text;
    flex-grow: 1;
    min-height: 0;
    overflow-y: auto;
}

.card-body:focus {
    background: rgba(255, 255, 255, 0.03);
}

/* Card types details */
.card-todo-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 10px;
}

.todo-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.todo-checkbox {
    appearance: none;
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--text-muted);
    border-radius: 4px;
    outline: none;
    cursor: pointer;
    position: relative;
    top: 2px;
    transition: all 0.2s ease;
}

.todo-checkbox:checked {
    background-color: var(--theme-color, var(--color-cyan));
    border-color: var(--theme-color, var(--color-cyan));
}

.todo-checkbox:checked::after {
    content: "✓";
    position: absolute;
    color: #000;
    font-size: 10px;
    font-weight: bold;
    left: 3px;
    top: -1px;
}

.todo-text {
    flex-grow: 1;
    font-size: 13px;
    outline: none;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: text;
    user-select: text;
    -webkit-user-select: text;
}

.todo-checkbox:checked ~ .todo-text {
    text-decoration: line-through;
    color: var(--text-muted);
}

.add-todo-btn {
    font-size: 12px;
    color: var(--theme-color, var(--color-cyan));
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    margin-top: 4px;
}

.add-todo-btn:hover {
    opacity: 0.8;
}

/* Connection sockets */
.sockets-container {
    position: absolute;
    top: -1.5px; /* Negate the 1.5px border to align with border-box */
    left: -1.5px;
    right: -1.5px;
    bottom: -1.5px;
    pointer-events: none;
    z-index: 20;
}

.card-socket {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--bg-primary);
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
    z-index: 20;
    cursor: crosshair;
    pointer-events: auto;
    opacity: 1;
    transform: scale(1);
    transition:
        transform 0.2s ease,
        border-color 0.2s ease;
}

.card-socket:hover {
    border-color: var(--theme-color, var(--color-cyan));
    background: var(--theme-color, var(--color-cyan));
    transform: scale(1.3);
}

/* Custom Socket Ghost */
.card-socket-ghost {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--theme-color, var(--color-cyan));
    border: 1.5px dashed #fff;
    border-radius: 50%;
    pointer-events: none;
    z-index: 25;
    opacity: 0.6;
    transform: scale(0.9);
}

.socket-top {
    top: -6px;
    left: calc(50% - 6px);
}
.socket-right {
    right: -6px;
    top: calc(50% - 6px);
}
.socket-bottom {
    bottom: -6px;
    left: calc(50% - 6px);
}
.socket-left {
    left: -6px;
    top: calc(50% - 6px);
}

/* Theme Selector Popover (Smart Fixed Positioning) */
.theme-selector-popover {
    position: fixed;
    background: rgba(12, 15, 23, 0.95);
    border: 1px solid var(--border-glass);
    padding: 8px;
    border-radius: 12px;
    display: flex;
    gap: 6px;
    z-index: 2000;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    animation: popoverFadeIn 0.15s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.theme-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    cursor: pointer;
    border: 1.5px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.15s ease;
}

.theme-dot:hover {
    transform: scale(1.2);
}

.theme-dot.selected {
    border-color: #fff;
}

@keyframes popoverFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Floating Controls HUD */
.hud-panel {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(12, 15, 23, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 8px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    z-index: 100;
}

.hud-divider {
    width: 1px;
    height: 24px;
    background: var(--border-glass);
}

.hud-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: "Inter", sans-serif;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.hud-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.hud-btn-primary {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-cyan);
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.1);
}

.hud-btn-primary:hover {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #fff;
    border-color: var(--color-cyan);
}

.zoom-indicator {
    font-family: "Outfit", sans-serif;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 48px;
    text-align: center;
}

/* Sidebar Outline */
.sidebar-panel {
    position: fixed;
    top: 80px; /* Offset for main header dropdown button spacing */
    left: 24px;
    width: var(--sidebar-width);
    bottom: 100px;
    background: rgba(12, 15, 23, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    z-index: 100;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar-panel.collapsed {
    transform: translateX(calc(-100% - 24px));
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.sidebar-title {
    font-family: "Outfit", sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.search-box {
    position: relative;
    margin-bottom: 16px;
}

.search-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: 10px;
    padding: 10px 12px 10px 36px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: all 0.2s ease;
}

.search-input:focus {
    border-color: var(--color-cyan);
    background: rgba(255, 255, 255, 0.08);
}

.search-icon {
    position: absolute;
    left: 12px;
    top: calc(50% - 7px);
    color: var(--text-muted);
}

.nodes-list {
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Reusing shared custom scrollbars */
.nodes-list::-webkit-scrollbar {
    width: 4px;
}
.nodes-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.node-item {
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.node-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--theme-color, var(--color-cyan));
}

.node-item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow: hidden;
}

.node-item-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.node-item-desc {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.node-item-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--theme-color, var(--color-cyan));
    flex-shrink: 0;
    margin-left: 8px;
}

/* Minimap Window */
.minimap-panel {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 180px;
    height: 120px;
    background: rgba(12, 15, 23, 0.8);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    z-index: 100;
    cursor: pointer;
}

.minimap-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.minimap-viewport-indicator {
    position: absolute;
    border: 1.5px solid var(--color-cyan);
    background: rgba(0, 242, 254, 0.04);
    pointer-events: none;
    box-sizing: border-box;
}

/* Sidebar trigger hook */
.sidebar-trigger {
    position: absolute;
    left: calc(100% - 1px); /* overlap sidebar right border */
    top: 36px; /* align with header */
    transform: translateY(0);
    z-index: 101;
    width: 32px;
    height: 48px;
    background: rgba(12, 15, 23, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-left: none; /* merge seamlessly with the sidebar panel */
    border-radius: 0 12px 12px 0;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 6px 0 20px rgba(0, 0, 0, 0.4);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar-trigger:hover {
    color: var(--color-cyan);
    background: rgba(12, 15, 23, 0.95);
    box-shadow: 6px 0 20px rgba(0, 242, 254, 0.15);
}

.sidebar-trigger:active {
    padding-left: 4px; /* push visual indicator */
}

/* CSS-driven icon visibility toggling based on collapsed status */
.sidebar-panel.collapsed .sidebar-trigger .icon-expanded {
    display: none !important;
}
.sidebar-panel:not(.collapsed) .sidebar-trigger .icon-collapsed {
    display: none !important;
}

/* Close button styling inside header */
#close-sidebar-btn {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: 1px solid var(--border-glass);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

#close-sidebar-btn:hover {
    background: rgba(255, 42, 109, 0.08);
    border-color: rgba(255, 42, 109, 0.3);
    color: var(--color-rose);
}

/* Floating Notification Bar */
.toast-notification {
    position: fixed;
    top: 90px;
    right: 24px;
    background: rgba(12, 15, 23, 0.95);
    border: 1.5px solid var(--color-emerald);
    padding: 12px 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-size: 14px;
    z-index: 1000;
    box-shadow:
        0 10px 25px rgba(0, 0, 0, 0.4),
        0 0 12px rgba(0, 230, 118, 0.1);
    transform: translateX(120%);
    transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast-notification.show {
    transform: translateX(0);
}

.toast-notification i,
.toast-notification svg {
    color: var(--color-emerald);
}

/* Inline Edit Card Dialog (optional detail popups) */
.dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(5, 7, 10, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.dialog-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.dialog-box {
    width: 480px;
    background: rgba(12, 15, 23, 0.9);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.dialog-title {
    font-family: "Outfit", sans-serif;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.dialog-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    border-radius: 10px;
    padding: 12px;
    color: var(--text-primary);
    outline: none;
    font-size: 15px;
    margin-bottom: 20px;
}

.dialog-input:focus {
    border-color: var(--color-cyan);
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.dialog-btn {
    padding: 10px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    border: none;
}

.dialog-btn-cancel {
    background: transparent;
    color: var(--text-secondary);
}

.dialog-btn-cancel:hover {
    background: rgba(255, 255, 255, 0.06);
}

.dialog-btn-confirm {
    background: var(--color-cyan);
    color: #000;
}

.dialog-btn-confirm:hover {
    opacity: 0.9;
}

/* Card Custom Resize Handle */
.card-resize-handle {
    position: absolute;
    right: 4px;
    bottom: 4px;
    width: 12px;
    height: 12px;
    cursor: se-resize;
    background: linear-gradient(
        135deg,
        transparent 50%,
        var(--text-secondary) 50%
    );
    z-index: 30;
    border-bottom-right-radius: 6px;
    opacity: 0.3;
    transition:
        opacity 0.2s ease,
        background 0.2s ease,
        transform 0.15s ease;
}

.idea-card:hover .card-resize-handle {
    opacity: 0.8;
    background: linear-gradient(
        135deg,
        transparent 50%,
        var(--theme-color, var(--color-cyan)) 50%
    );
}

.card-resize-handle:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* App Header Styles */
.app-header {
    position: relative;
    z-index: 1010;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 2rem;
    border-bottom: 1px solid var(--border-glass);
    background: rgba(7, 9, 14, 0.45);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    animation: fadeInDown 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.header-brand-group {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.app-header .dropdown-container {
    position: relative;
    top: auto;
    left: auto;
    z-index: 1000;
}

.app-header .dropdown-menu {
    top: calc(100% + 5px);
    background: rgba(12, 15, 23, 0.95) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border: 1px solid var(--border-glass) !important;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5) !important;
}

.app-header .dropdown-category {
    color: var(--text-muted) !important;
    border-top: 1px solid rgba(255, 255, 255, 0.05) !important;
}

.app-header .dropdown-item {
    color: var(--text-secondary) !important;
}

.app-header .dropdown-item:hover {
    background: rgba(255, 255, 255, 0.05) !important;
    color: var(--text-primary) !important;
}

.app-header .dropdown-item svg {
    fill: currentColor !important;
}

.logo-text h1 {
    font-family: "Outfit", sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    line-height: 1.2;
}

.logo-text h1 span {
    background: linear-gradient(90deg, var(--color-cyan), var(--color-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: -2px;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.mode-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 242, 254, 0.06);
    border: 1px solid rgba(0, 242, 254, 0.2);
    color: var(--color-cyan);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.05);
}

.mode-badge i,
.mode-badge svg {
    width: 14px;
    height: 14px;
    color: var(--color-cyan);
}

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

/* Active HUD button styling */
.hud-btn.active {
    color: var(--color-cyan) !important;
    border-color: rgba(0, 242, 254, 0.3) !important;
    background: rgba(0, 242, 254, 0.08) !important;
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
}

/* Animated flow connections styling */
.connections-svg path.flow-active {
    stroke-dasharray: 8, 8;
    animation: connectionFlow 2s linear infinite;
}

/* Group Frame Cards styling */
.idea-card.group-card {
    background: rgba(255, 255, 255, 0.01) !important;
    border: 1.5px dashed rgba(255, 255, 255, 0.15) !important;
    backdrop-filter: blur(2px) !important;
    -webkit-backdrop-filter: blur(2px) !important;
    box-shadow: none !important;
    z-index: 2 !important; /* Low z-index sits behind note cards */
}

.idea-card.group-card:hover,
.idea-card.group-card.selected {
    border-style: solid !important;
    background: rgba(255, 255, 255, 0.02) !important;
    border-color: var(--theme-color, var(--color-cyan)) !important;
    box-shadow: 0 0 20px rgba(var(--theme-rgb, 0, 242, 254), 0.05) !important;
}

.idea-card.group-card .card-body {
    pointer-events: none !important; /* Allow clicks to pass through body to grab/select cards underneath */
}

/* Link preview bookmark styling */
.card-link-preview {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    border-radius: 10px;
    padding: 12px;
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: background 0.2s ease;
}

.card-link-preview:hover {
    background: rgba(255, 255, 255, 0.06);
}

.link-preview-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-cyan);
}

.link-url {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    flex-grow: 1;
}

.link-url:hover {
    text-decoration: underline;
    color: var(--color-cyan);
}

/* Floating Alignment & Spacing Toolbar */
.alignment-toolbar {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(12, 15, 23, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 6px 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    z-index: 100;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.alignment-toolbar.hidden {
    opacity: 0;
    transform: translate(-50%, 20px) scale(0.95);
    pointer-events: none;
}

.align-divider {
    width: 1px;
    height: 18px;
    background: var(--border-glass);
}

.align-btn {
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.align-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-cyan);
}

.align-btn svg {
    width: 16px;
    height: 16px;
}

/* Card Tags styles */
.card-tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: -4px -16px 8px -16px;
    padding: 4px 16px;
    align-items: center;
    flex-shrink: 0;
}

.tag-badge {
    display: inline-flex;
    align-items: center;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.15s ease;
    border: 1px solid transparent;
}

.tag-delete-x {
    margin-left: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    font-size: 10px;
    line-height: 1;
    font-weight: bold;
    cursor: pointer;
    opacity: 0.5;
    transition:
        opacity 0.15s ease,
        background-color 0.15s ease;
}

.tag-delete-x:hover {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.25);
}

.tag-badge:hover {
    filter: brightness(1.2);
    transform: translateY(-1px);
}

/* Tag Badge Color Presets */
.tag-badge.cyan {
    background: rgba(0, 242, 254, 0.12);
    color: #00f2fe;
    border-color: rgba(0, 242, 254, 0.25);
}
.tag-badge.purple {
    background: rgba(189, 0, 255, 0.12);
    color: #bd00ff;
    border-color: rgba(189, 0, 255, 0.25);
}
.tag-badge.emerald {
    background: rgba(0, 230, 118, 0.12);
    color: #00e676;
    border-color: rgba(0, 230, 118, 0.25);
}
.tag-badge.rose {
    background: rgba(255, 42, 109, 0.12);
    color: #ff2a6d;
    border-color: rgba(255, 42, 109, 0.25);
}
.tag-badge.amber {
    background: rgba(255, 174, 0, 0.12);
    color: #ffae00;
    border-color: rgba(255, 174, 0, 0.25);
}
.tag-badge.slate {
    background: rgba(148, 163, 184, 0.12);
    color: #94a3b8;
    border-color: rgba(148, 163, 184, 0.25);
}

.btn-add-tag {
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed var(--border-glass);
    color: var(--text-muted);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-add-tag:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: var(--color-cyan);
}

/* Tag Popover list items styling */
.tag-popover-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 11px;
}

.tag-popover-delete {
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.15s ease;
    display: flex;
    align-items: center;
}

.tag-popover-delete:hover {
    color: var(--color-rose);
}

/* Local per-group snap active button styling */
.card-btn.btn-toggle-group-snap-local.active {
    color: var(--color-cyan) !important;
    background: rgba(0, 242, 254, 0.15) !important;
    box-shadow: 0 0 8px rgba(0, 242, 254, 0.2);
}
.card-btn.btn-toggle-group-snap-local.active:hover {
    background: rgba(0, 242, 254, 0.25) !important;
}

/* --- Extension Styles: Flyout HUD & New Card Types --- */

/* HUD Dropdown Flyout */
.hud-dropdown-container {
    position: relative;
}

.hud-flyout-panel {
    position: absolute;
    bottom: calc(100% + 16px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(12, 15, 23, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 14px;
    box-shadow: 
        0 15px 40px rgba(0, 0, 0, 0.6),
        0 0 25px rgba(0, 242, 254, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    width: 480px;
    opacity: 0;
    pointer-events: none;
    transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.22s ease;
    z-index: 1000;
}

.hud-flyout-panel.show {
    opacity: 1;
    pointer-events: all;
    transform: translateX(-50%) translateY(0);
}

/* Background Double Click Spawn Menu */
.spawn-menu-popover {
    position: fixed;
    background: rgba(12, 15, 23, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 14px;
    box-shadow: 
        0 15px 40px rgba(0, 0, 0, 0.6),
        0 0 25px rgba(0, 242, 254, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    width: 440px;
    z-index: 2000;
    animation: popoverFadeIn 0.15s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.spawn-menu-header {
    font-family: "Outfit", sans-serif;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 8px;
    margin-bottom: 10px;
}

.flyout-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.flyout-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 10px;
    padding: 8px 12px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    text-align: left;
    transition: all 0.15s ease;
    width: 100%;
}

.flyout-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--theme-color, var(--color-cyan));
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.flyout-item i, .flyout-item svg {
    width: 18px;
    height: 18px;
    color: var(--color-cyan);
    flex-shrink: 0;
}

.flyout-item-title {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-primary);
}

.flyout-item-desc {
    display: block;
    font-size: 10.5px;
    color: var(--text-muted);
    line-height: 1.2;
}

/* Image Card Styles */
.card-image-container {
    width: 100%;
    flex-grow: 1;
    min-height: 0;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-image-el {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    user-select: none;
    pointer-events: none;
}

.card-image-empty {
    width: 100%;
    height: 100%;
    border: 1.5px dashed var(--border-glass);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.01);
    pointer-events: all;
    position: relative;
    z-index: 10;
}

.image-upload-label {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 242, 254, 0.1);
    border: 1px solid rgba(0, 242, 254, 0.3);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 11px;
    color: var(--color-cyan);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
}

.image-upload-label:hover {
    background: rgba(0, 242, 254, 0.2);
    border-color: var(--color-cyan);
}

.card-image-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: 6px;
    padding: 6px 8px;
    color: var(--text-primary);
    font-size: 11px;
    outline: none;
    text-align: center;
    pointer-events: all;
    user-select: text;
    -webkit-user-select: text;
    cursor: text;
}

.card-image-input:focus {
    border-color: var(--color-cyan);
}

/* Image Blocked / Load Error Fallback */
.card-image-error {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 16px;
    border: 1.5px dashed rgba(255, 42, 109, 0.35);
    border-radius: 8px;
    background: rgba(255, 42, 109, 0.04);
    pointer-events: all;
    position: relative;
    z-index: 10;
    text-align: center;
}

.image-error-open-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-top: 4px;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
    color: var(--color-cyan);
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.25);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.15s ease;
}

.image-error-open-btn:hover {
    background: rgba(0, 242, 254, 0.16);
    border-color: var(--color-cyan);
}

.image-error-retry-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    cursor: pointer;
    transition: all 0.15s ease;
}

.image-error-retry-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-active);
    color: var(--text-primary);
}

/* Markdown Card Styles */
.card-markdown-container {
    width: 100%;
    flex-grow: 1;
    min-height: 0;
    overflow-y: auto;
    position: relative;
    user-select: text;
    padding-right: 4px;
}

.card-markdown-container::-webkit-scrollbar {
    width: 4px;
}
.card-markdown-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
}

.card-markdown-preview {
    font-size: 13.5px;
    line-height: 1.45;
    color: var(--text-secondary);
    padding: 2px;
}

.card-markdown-preview h1, 
.card-markdown-preview h2, 
.card-markdown-preview h3 {
    font-family: "Outfit", sans-serif;
    color: var(--text-primary);
    margin-top: 8px;
    margin-bottom: 4px;
    font-weight: 600;
}

.card-markdown-preview h1 { font-size: 1.35em; border-bottom: 1px solid var(--border-glass); padding-bottom: 2px; }
.card-markdown-preview h2 { font-size: 1.2em; }
.card-markdown-preview h3 { font-size: 1.05em; }

.card-markdown-preview p {
    margin-bottom: 6px;
}

.card-markdown-preview ul, 
.card-markdown-preview ol {
    margin-left: 16px;
    margin-bottom: 6px;
    padding-left: 0;
}

.card-markdown-preview li {
    margin-bottom: 2px;
}

.card-markdown-preview code {
    background: rgba(255, 255, 255, 0.08);
    padding: 1px 3px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
}

.card-markdown-preview pre {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-glass);
    padding: 6px;
    border-radius: 6px;
    overflow-x: auto;
    margin-bottom: 6px;
}

.card-markdown-preview pre code {
    background: transparent;
    padding: 0;
}

.card-markdown-editor {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: monospace;
    font-size: 12.5px;
    resize: none;
    line-height: 1.45;
    padding: 2px;
}

/* Iframe Website and Media Embed Styles */
.card-iframe-container,
.card-media-container {
    width: 100%;
    flex-grow: 1;
    min-height: 0;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: #000;
    border: 1px solid var(--border-glass);
}

.card-iframe-container iframe,
.card-media-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: #fff;
    display: block;
}

.card-media-container iframe {
    background: #000;
}

/* Spotify Embed Centering and Layout */
.card-media-container.spotify-media {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #0d0f17;
}

.card-media-container.spotify-media iframe {
    width: calc(100% - 24px);
    height: 152px;
    max-height: calc(100% - 24px);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    background: transparent;
}

.iframe-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.15);
    z-index: 5;
    cursor: move;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    padding: 12px;
    box-sizing: border-box;
    transition: background-color 0.22s ease;
}

.iframe-overlay:hover {
    background: rgba(0, 0, 0, 0.45);
}

.iframe-overlay-hint {
    background: rgba(12, 15, 23, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 11px;
    color: var(--text-secondary);
    text-align: center;
    max-width: 90%;
    pointer-events: none;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.iframe-overlay:hover .iframe-overlay-hint {
    opacity: 1;
    transform: translateY(0);
}

.idea-card.interact-mode .iframe-overlay {
    pointer-events: none;
    display: none;
}

.card-embed-empty {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.01);
    border: 1.5px dashed var(--border-glass);
    border-radius: 8px;
    pointer-events: all;
    z-index: 10;
    position: relative;
}

.card-embed-title {
    font-size: 12px;
    color: var(--text-primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.card-embed-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: 6px;
    padding: 6px 10px;
    color: var(--text-primary);
    font-size: 11px;
    outline: none;
    text-align: center;
    pointer-events: all;
    user-select: text;
    -webkit-user-select: text;
    cursor: text;
}

.card-embed-input:focus {
    border-color: var(--color-cyan);
}

/* Timer Card Styles */
.card-timer-container {
    width: 100%;
    flex-grow: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding: 2px;
}

.timer-display {
    font-family: "Outfit", monospace;
    font-size: 30px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 1px;
    margin: 2px 0;
    transition: color 0.3s ease;
}

.timer-display.finished {
    color: var(--color-rose);
    animation: timerPulse 0.5s infinite alternate;
}

@keyframes timerPulse {
    from { transform: scale(1); }
    to { transform: scale(1.06); }
}

.timer-controls {
    display: flex;
    gap: 6px;
    width: 100%;
    justify-content: center;
    margin-top: 4px;
}

.timer-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: 6px;
    padding: 4px 10px;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 11.5px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.2s ease;
}

.timer-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-active);
}

.timer-btn-primary {
    background: rgba(0, 242, 254, 0.08);
    border-color: rgba(0, 242, 254, 0.25);
    color: var(--color-cyan);
}

.timer-btn-primary:hover {
    background: rgba(0, 242, 254, 0.16);
    border-color: var(--color-cyan);
}

.timer-config {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
    align-items: center;
}

.timer-mode-selector {
    display: flex;
    background: rgba(0, 0, 0, 0.25);
    padding: 2px;
    border-radius: 6px;
    border: 1px solid var(--border-glass);
    width: 100%;
}

.timer-mode-btn {
    flex: 1;
    background: transparent;
    border: none;
    padding: 3px 6px;
    font-size: 10.5px;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    font-weight: 500;
    transition: all 0.15s ease;
}

.timer-mode-btn.active {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
}

.timer-presets {
    display: flex;
    gap: 4px;
    width: 100%;
    justify-content: space-between;
}

.timer-preset-btn {
    flex: 1;
    background: transparent;
    border: 1px solid var(--border-glass);
    border-radius: 4px;
    padding: 3px 0;
    font-size: 9.5px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.timer-preset-btn:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border-active);
}

/* Table Spreadsheet Card Styles */
.card-table-wrapper {
    width: 100%;
    flex-grow: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.card-table-scroll {
    flex-grow: 1;
    overflow: auto;
    border-radius: 6px;
    border: 1px solid var(--border-glass);
    background: rgba(0, 0, 0, 0.2);
}

.card-table-scroll::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

.card-table-scroll::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 2px;
}

.card-table-el {
    width: 100%;
    border-collapse: collapse;
    font-size: 11.5px;
    color: var(--text-secondary);
}

.card-table-el th, 
.card-table-el td {
    border: 1px solid var(--border-glass);
    padding: 5px 6px;
    min-width: 50px;
    outline: none;
    word-break: break-word;
    user-select: text;
}

.card-table-el th {
    background: rgba(255, 255, 255, 0.04);
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
}

.card-table-el td:focus, 
.card-table-el th:focus {
    background: rgba(0, 242, 254, 0.04);
    box-shadow: inset 0 0 0 1px rgba(0, 242, 254, 0.3);
}

.table-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 2px 2px 0 2px;
}

.table-controls-group {
    display: flex;
    gap: 4px;
}

.table-btn {
    background: transparent;
    border: 1px solid var(--border-glass);
    border-radius: 4px;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.table-btn:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border-active);
    color: var(--text-primary);
}

.table-btn svg, .table-btn i {
    width: 12px;
    height: 12px;
}

/* Todo checklist flex wrapper */
.card-todo-wrapper {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    min-height: 0;
    justify-content: space-between;
    width: 100%;
}

/* --- Math Scratchpad / Calculator Card Styles --- */

.card-calculator-wrapper {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    min-height: 0;
    gap: 0;
}

/* Calculator Toolbar */
.calc-toolbar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    padding: 0 2px 6px 2px;
    flex-shrink: 0;
}

.calc-tb-btn {
    height: 22px;
    padding: 0 8px;
    border-radius: 4px;
    border: 1px solid var(--border-glass);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
    font-size: 11px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    font-family: inherit;
}

.calc-tb-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-active);
    color: var(--text-primary);
}

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

.calc-tb-sep {
    width: 1px;
    height: 12px;
    background: var(--border-glass);
    margin: 0 4px;
    flex-shrink: 0;
}

.calc-fmt-btn {
    color: var(--color-cyan);
    background: rgba(0, 242, 254, 0.05);
    border-color: rgba(0, 242, 254, 0.15);
    font-weight: 600;
}

.calc-fmt-btn:hover {
    background: rgba(0, 242, 254, 0.12);
    border-color: var(--color-cyan);
    color: #fff;
}

.calc-clear-btn:hover {
    border-color: rgba(255, 42, 109, 0.4);
    color: var(--color-rose);
    background: rgba(255, 42, 109, 0.05);
}

/* Scroll Container */
.calculator-scroll-container {
    display: flex;
    flex-grow: 1;
    min-height: 0;
    gap: 0;
    overflow: hidden;
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
}

/* Line numbers gutter */
.calculator-line-nums {
    width: 32px;
    flex-shrink: 0;
    background: rgba(0, 0, 0, 0.15);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    padding: 8px 0;
    box-sizing: border-box;
    overflow-y: scroll;
    overflow-x: hidden;
    scrollbar-width: none;
    pointer-events: none;
}

.calculator-line-nums::-webkit-scrollbar {
    display: none;
}

.calc-line-num {
    height: 22px;
    line-height: 22px;
    font-family: "Consolas", "Monaco", "Courier New", monospace;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.25);
    text-align: center;
}

/* Shared font metrics so editor and result lines align perfectly */
.calculator-editor,
.calculator-results {
    font-family: "Consolas", "Monaco", "Courier New", monospace;
    font-size: 12.5px;
    line-height: 22px;
    padding: 8px 10px;
    box-sizing: border-box;
    overflow-y: scroll;
    overflow-x: hidden;
    scrollbar-width: none; /* hide scrollbar — scroll is synced from editor */
}

.calculator-editor::-webkit-scrollbar,
.calculator-results::-webkit-scrollbar {
    display: none;
}

.calculator-editor {
    flex: 1;
    background: transparent;
    border: none;
    border-right: 1px solid var(--border-glass);
    color: var(--text-primary);
    outline: none;
    resize: none;
    user-select: text;
    -webkit-user-select: text;
    white-space: pre;
    word-break: normal;
    overflow-wrap: normal;
    cursor: text;
}

.calculator-editor::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

.calculator-results {
    width: 90px;
    flex-shrink: 0;
    background: rgba(0, 0, 0, 0.15);
    pointer-events: none;
    text-align: right;
}

.calc-result-line {
    display: block;
    height: 22px;
    line-height: 22px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 12px;
    color: var(--text-muted);
    padding-right: 2px;
    text-align: right;
}

.calc-result-value {
    color: var(--color-cyan);
    font-weight: 600;
    pointer-events: auto;
    cursor: pointer;
    transition: all 0.15s ease;
}

.calc-result-value:hover {
    color: var(--color-emerald);
    background: rgba(0, 242, 254, 0.08);
    border-radius: 3px;
}

.calc-result-value.copied {
    color: var(--color-emerald) !important;
    background: rgba(0, 230, 118, 0.15) !important;
    transform: scale(1.03);
}

.calc-result-error {
    color: var(--color-rose);
    font-size: 10.5px;
    font-weight: 500;
}

.calc-result-comment {
    opacity: 0;
}

/* Variables watcher footer */
.calculator-footer {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 5px;
    padding: 5px 2px 0 2px;
    flex-shrink: 0;
}

.calculator-vars-title {
    font-size: 9.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.calculator-vars-list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    align-items: center;
    font-size: 9.5px;
    color: var(--text-muted);
    font-style: italic;
}

.calc-var-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.2);
    color: var(--color-cyan);
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 9.5px;
    font-family: "Consolas", "Monaco", monospace;
    font-weight: 500;
    font-style: normal;
    cursor: pointer;
    transition: all 0.15s ease;
}

.calc-var-badge:hover {
    background: rgba(0, 242, 254, 0.18);
    border-color: var(--color-cyan);
    transform: translateY(-1px);
}

.calc-total-wrap {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
    background: rgba(0, 242, 254, 0.05);
    border: 1px solid rgba(0, 242, 254, 0.15);
    border-radius: 4px;
    padding: 1px 6px;
    color: var(--color-cyan);
    font-family: "Consolas", "Monaco", monospace;
    font-size: 9.5px;
    font-weight: 500;
}

.calc-total-label {
    opacity: 0.6;
    font-size: 8.5px;
    font-weight: 700;
}

.calc-total {
    font-weight: 600;
}