/* ============================================
   MIND NODES - Flip Animation & Workspace
   ============================================ */

/* 3D Flip Container */
.flip-container {
    width: 100%;
    min-height: 100vh;
    perspective: 2000px;
}

.flip-inner {
    position: relative;
    width: 100%;
    min-height: 100vh;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
    will-change: transform;
}

.flip-container.flipped .flip-inner {
    transform: rotateY(180deg);
}

.flip-front,
.flip-back {
    width: 100%;
    min-height: 100vh;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    transform: translateZ(0); /* GPU acceleration hint */
}

.flip-front {
    position: relative;
}

.flip-back {
    position: absolute;
    top: 0;
    left: 0;
    height: 100vh;
    transform: rotateY(180deg) translateZ(0);
}

/* Lock body scroll when flipped */
body.mindnode-active {
    overflow: hidden;
    height: 100vh;
}

/* Hide homepage-only UI when in mindnode mode */
body.mindnode-active .bg-controls-fixed,
body.mindnode-active #userBadge,
body.mindnode-active .controls {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

/* Hide back content when not flipped (prevent interaction AND visibility) */
.flip-container:not(.flipped) .flip-back {
    pointer-events: none;
    visibility: hidden;
}

.flip-container.flipped .flip-front {
    pointer-events: none;
    visibility: hidden;
}

/* Hide other faces when mindnodes is active */
.flip-container.flipped .flip-back-kanban {
    pointer-events: none;
    visibility: hidden;
}

.flip-container.flipped .flip-back-notes {
    pointer-events: none;
    visibility: hidden;
}

/* ============================================
   MINDNODE WORKSPACE
   ============================================ */

.mindnode-workspace {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

/* Toolbar */
.mn-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--card-bg);
    border-bottom: 1px solid var(--card-border);
    backdrop-filter: var(--card-blur);
    -webkit-backdrop-filter: var(--card-blur);
    z-index: 10;
    flex-shrink: 0;
    gap: 1rem;
}

.mn-toolbar-left,
.mn-toolbar-center,
.mn-toolbar-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mn-toolbar-left h2 {
    font-size: 1.2rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    white-space: nowrap;
}

.mn-toolbar-left h2 i {
    color: var(--accent-color);
}

.mn-tool-btn {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.75rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-family: var(--font-main);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.mn-tool-btn:hover {
    background: color-mix(in srgb, var(--accent-color), transparent 80%);
    color: var(--text-primary);
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

.mn-tool-btn.active {
    background: var(--accent-color);
    color: var(--color-1);
    border-color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

.mn-tool-btn.mn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
    color: #ef4444;
}

.mn-back-btn {
    background: var(--card-bg);
    font-size: 1.1rem;
    padding: 0.5rem 0.65rem;
}

.mn-back-btn:hover {
    background: var(--accent-color);
    color: var(--color-1);
    box-shadow: 0 0 20px var(--accent-glow);
}

.mn-separator {
    width: 1px;
    height: 24px;
    background: var(--card-border);
    margin: 0 0.5rem;
}

/* Search Box */
.mn-search-box {
    display: flex;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2px 12px;
    gap: 8px;
    transition: all 0.3s ease;
    min-width: 180px;
    backdrop-filter: var(--card-blur);
    -webkit-backdrop-filter: var(--card-blur);
}

.mn-search-box:focus-within {
    background: color-mix(in srgb, var(--accent-color), transparent 90%);
    border-color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow), 0 0 40px color-mix(in srgb, var(--accent-color), transparent 70%);
    min-width: 220px;
}

.mn-search-box i {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.4);
}

.mn-search-box input {
    background: none;
    border: none;
    color: #fff;
    font-size: 0.85rem;
    width: 100%;
    outline: none;
    padding: 4px 0;
}

.mn-search-box input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.mn-search-count {
    font-size: 0.75rem;
    color: var(--accent-color);
    font-weight: 600;
    white-space: nowrap;
}

.mn-select {
    padding: 0.45rem 0.75rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: var(--font-main);
    cursor: pointer;
    outline: none;
    transition: var(--transition);
    max-width: 180px;
    backdrop-filter: var(--card-blur);
    -webkit-backdrop-filter: var(--card-blur);
}

.mn-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

.mn-select option {
    background: var(--color-3);
    color: var(--text-primary);
}

/* Canvas */
#mindnodeCanvas {
    flex: 1;
    width: 100%;
    cursor: grab;
    background: transparent;
}

#mindnodeCanvas:active {
    cursor: grabbing;
}

/* Node Edit Panel - Optimized with transform for GPU acceleration */
.mn-node-panel {
    position: absolute;
    top: 60px;
    right: 0;
    width: 300px;
    height: calc(100% - 60px);
    background: var(--card-bg);
    border-left: 1px solid var(--card-border);
    backdrop-filter: var(--card-blur);
    -webkit-backdrop-filter: var(--card-blur);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 20;
    transform: translateX(320px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    will-change: transform;
}

.mn-node-panel.open {
    transform: translateX(0);
}

.mn-node-panel.pinned {
    transform: translateX(0);
}

.mn-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mn-panel-header h3 {
    color: var(--accent-color);
    font-size: 1.1rem;
    margin: 0;
}

/* Color Picker Buttons */
.mn-color-options {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.mn-color-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.mn-color-btn:hover {
    transform: scale(1.15);
}

.mn-color-btn.active {
    border-color: #fff;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* Emoji Picker Buttons */
.mn-emoji-options {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.mn-emoji-btn {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    border: 2px solid transparent;
    background: rgba(255, 255, 255, 0.06);
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    padding: 0;
}

.mn-emoji-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.15);
}

.mn-emoji-btn.active {
    border-color: var(--accent-color, #38bdf8);
    background: rgba(56, 189, 248, 0.2);
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.3);
    transform: scale(1.1);
}

.mn-emoji-clear {
    color: #94a3b8;
    font-size: 12px;
    font-weight: bold;
}

.mn-emoji-clear:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.15);
}

/* New Map Modal */
.mn-modal {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.65);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 50;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.mn-modal.hidden {
    display: none;
}

.mn-modal-content {
    background: color-mix(in srgb, var(--color-1), transparent 15%);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 2rem;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6),
                0 0 0 1px rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    animation: modalSlideUp 0.25s ease;
}

.mn-modal-content h3 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.mn-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Keyboard Shortcuts Styling */
.kb-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.kb-item kbd {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    min-width: 32px;
    text-align: center;
    display: inline-block;
}

.kb-item span {
    flex: 1;
}

/* Mini Map List (left sidebar overlay) */
.mn-map-list {
    position: absolute;
    top: 60px;
    left: 0;
    width: 240px;
    bottom: 0;
    background: var(--card-bg);
    border-right: 1px solid var(--card-border);
    backdrop-filter: var(--card-blur);
    -webkit-backdrop-filter: var(--card-blur);
    padding: 1rem;
    display: none;
    flex-direction: column;
    gap: 0.5rem;
    overflow-y: auto;
    z-index: 15;
}

.mn-map-list.open {
    display: flex;
}

/* Inline node name editor backdrop */
.mn-inline-edit-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 29;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease-out, backdrop-filter 0.25s ease-out;
}

.mn-inline-edit-backdrop.show {
    opacity: 1;
    pointer-events: all;
}

/* Inline node name editor */
.mn-inline-edit {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.92);
    z-index: 30;
    background: var(--card-bg);
    border: 2px solid var(--accent-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    padding: 12px 24px;
    outline: none;
    width: 400px;
    max-width: 80vw;
    box-shadow: 0 0 40px var(--accent-glow);
    backdrop-filter: var(--card-blur);
    -webkit-backdrop-filter: var(--card-blur);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease-out, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.mn-inline-edit.show {
    opacity: 1;
    pointer-events: all;
    transform: translate(-50%, -50%) scale(1);
}

/* Shortcuts hint in toolbar */
.mn-shortcuts-hint {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    opacity: 0.6;
    white-space: nowrap;
}

.mn-shortcuts-hint i {
    font-size: 0.9rem;
}

/* Mindnode FAB button pulse when on homepage */
#mindnodeBtn i {
    transition: var(--transition);
}

/* Responsive */
@media (max-width: 900px) {
    .mn-toolbar {
        flex-wrap: wrap;
        padding: 0.5rem 0.75rem;
        gap: 0.5rem;
    }

    .mn-toolbar-left,
    .mn-toolbar-center,
    .mn-toolbar-right {
        flex-wrap: wrap;
    }

    .mn-toolbar-left h2 {
        font-size: 1rem;
    }

    .mn-node-panel {
        width: 260px;
        right: -280px;
    }
}

@media (max-width: 600px) {
    .mn-toolbar-center {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .mn-toolbar-left h2 span {
        display: none;
    }
}