.state-preview-tooltip {
    position: fixed;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 10px;
    z-index: 5000;
}

.state-preview-tooltip.active {
    display: flex;
    animation: popoverFadeIn 0.15s ease-out;
}

.state-preview-tooltip-canvas {
    width: 70px;
    height: 70px;
}

.gate-sequence-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.gate-sequence-preview {
    margin-top: 10px;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid rgba(212, 175, 55, 0.25);
    background: rgba(0, 0, 0, 0.22);
    display: grid;
    grid-template-columns: 70px 1fr;
    gap: 10px;
    align-items: center;
    min-height: 70px;
}

.sequence-preview-canvas {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 1px solid rgba(212, 175, 55, 0.35);
    background: radial-gradient(circle at 30% 30%, rgba(212, 175, 55, 0.25), rgba(0, 0, 0, 0.4));
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.4);
}

.sequence-preview-label {
    font-size: 0.9em;
    color: rgba(244, 228, 176, 0.85);
    line-height: 1.4;
}

.sequence-preview-label.empty {
    color: rgba(212, 175, 55, 0.45);
    font-style: italic;
}

.gate-sequence-actions .quantum-btn {
    flex: 1;
    padding: 8px 6px;
    font-size: 0.95em;
    letter-spacing: 0.5px;
}

.circuit-library-panel {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.circuit-library-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    align-items: center;
}

.circuit-library-actions .filter-input {
    margin: 0;
}

.circuit-library-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 220px;
    overflow-y: auto;
    padding: 2px;
    margin: -2px;
}

.circuit-library-item {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
    align-items: center;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(212, 175, 55, 0.22);
    background: rgba(0, 0, 0, 0.25);
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.circuit-library-item:hover {
    border-color: var(--gold);
    box-shadow: 0 0 12px rgba(212, 175, 55, 0.25);
    transform: translateY(-1px);
}

.circuit-library-title {
    font-family: var(--font-main);
    font-size: 0.85em;
    color: var(--gold-light);
    letter-spacing: 0.6px;
    outline: none;
    border-bottom: 1px dashed transparent;
    padding-bottom: 2px;
}

.circuit-library-title:focus {
    border-bottom-color: rgba(212, 175, 55, 0.6);
}

.circuit-library-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
}

.circuit-library-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 999px;
    border: 1px solid rgba(212, 175, 55, 0.28);
    background: rgba(212, 175, 55, 0.12);
    color: var(--gold-light);
    font-family: var(--font-main);
    font-size: 0.72em;
}

.circuit-library-chip small {
    font-family: var(--font-main);
    font-size: 0.7em;
    opacity: 0.7;
}

.circuit-library-delete {
    border: 1px solid rgba(212, 175, 55, 0.3);
    background: rgba(0, 0, 0, 0.4);
    color: var(--gold-light);
    width: 26px;
    height: 26px;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.circuit-library-delete:hover {
    border-color: var(--gold);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.25);
}

.filter-row {
    margin-bottom: 10px;
}

.filter-input {
    width: 100%;
    padding: 9px 12px;
    border-radius: 10px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    background: rgba(0, 0, 0, 0.35);
    color: var(--gold-light);
    font-family: var(--font-main);
    font-size: 0.95em;
    outline: none;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.filter-input::placeholder {
    color: rgba(244, 228, 176, 0.55);
}

.filter-input:focus {
    border-color: var(--gold);
    box-shadow: 0 0 12px rgba(212, 175, 55, 0.25);
}

.quantum-btn.animating {
    animation: animPulse 1.35s ease-in-out infinite;
}

@keyframes animPulse {

    0%,
    100% {
        box-shadow: 0 0 14px rgba(212, 175, 55, 0.45), 0 0 0 rgba(212, 175, 55, 0.0);
    }

    50% {
        box-shadow: 0 0 26px rgba(212, 175, 55, 0.75), 0 0 18px rgba(212, 175, 55, 0.35);
    }
}

.measurement-grid .quantum-btn {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(212, 175, 55, 0.25);
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.3);
}

.measurement-grid .quantum-btn.measurement-success {
    border-color: rgba(46, 204, 113, 0.6);
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.12), rgba(46, 204, 113, 0.04));
    box-shadow: inset 0 2px 12px rgba(46, 204, 113, 0.12);
}

.measurement-grid .quantum-btn.measurement-fail {
    border-color: rgba(231, 76, 60, 0.6);
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.12), rgba(231, 76, 60, 0.04));
    box-shadow: inset 0 2px 12px rgba(231, 76, 60, 0.12);
}

.slider-value.editable {
    cursor: text;
    border-bottom: 1px dashed rgba(212, 175, 55, 0.45);
    padding-bottom: 1px;
}

.slider-value-input {
    width: 88px;
    padding: 4px 6px;
    border-radius: 6px;
    border: 1px solid rgba(212, 175, 55, 0.45);
    background: rgba(0, 0, 0, 0.5);
    color: var(--gold-light);
    font-family: var(--font-main);
    font-size: 0.9em;
}

/* ==================== LATEX INPUT PREVIEW SYSTEM ==================== */
.matrix-input-wrapper {
    position: relative;
    width: 100%;
}

.matrix-input-wrapper .matrix-input {
    padding-right: 24px;
}

.latex-preview-badge {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.65em;
    color: rgba(39, 174, 96, 0.7);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    max-width: 55px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.matrix-input-wrapper.has-symbolic .latex-preview-badge {
    opacity: 0.8;
}

.latex-preview-tooltip {
    position: absolute;
    bottom: calc(100% + 5px);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(15, 15, 15, 0.92);
    border: 1px solid rgba(212, 175, 55, 0.35);
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 0.75em;
    color: var(--gold-light);
    white-space: nowrap;
    z-index: 1000;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.latex-preview-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 4px solid transparent;
    border-top-color: rgba(212, 175, 55, 0.35);
}

.matrix-input-wrapper:focus-within .latex-preview-tooltip.visible {
    opacity: 1;
}

.latex-preview-tooltip .preview-parsed {
    color: #27AE60;
    font-weight: 600;
}

.latex-preview-tooltip .preview-error {
    color: #E74C3C;
}

.latex-preview-tooltip .preview-label {
    color: rgba(212, 175, 55, 0.7);
    margin-right: 6px;
}

.input-format-hint {
    font-size: 0.7em;
    color: rgba(212, 175, 55, 0.4);
    margin-top: 2px;
    font-style: italic;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.25s ease;
}

.matrix-panel:focus-within .input-format-hint,
.axis-input-group:focus-within .input-format-hint {
    max-height: 20px;
    opacity: 1;
}

.input-format-hint code {
    background: transparent;
    padding: 0 2px;
    font-family: 'Courier New', monospace;
    color: rgba(212, 175, 55, 0.55);
}

.quick-insert-row {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
    margin-top: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.25s ease;
}

.matrix-panel:focus-within .quick-insert-row,
.axis-input-group:focus-within .quick-insert-row {
    max-height: 28px;
    opacity: 1;
    margin-top: 6px;
}

.quick-insert-chip {
    padding: 2px 6px;
    font-size: 0.7em;
    background: transparent;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 10px;
    color: rgba(212, 175, 55, 0.6);
    cursor: pointer;
    transition: all 0.15s ease;
    font-family: 'Courier New', monospace;
}

.quick-insert-chip:hover {
    background: rgba(212, 175, 55, 0.15);
    border-color: rgba(212, 175, 55, 0.4);
    color: var(--gold-light);
}

.symbolic-slider-input {
    font-family: 'Courier New', monospace;
    width: 100px;
}

.symbolic-slider-input::placeholder {
    color: rgba(212, 175, 55, 0.4);
    font-style: italic;
}