.canvas-container {
            text-align: center;
            margin: 1rem 0;
        }
        .unit-canvas {
            background: #fefefa;
            border-radius: 12px;
            border: 1px solid #e0e4e8;
            box-shadow: 0 2px 6px rgba(0,0,0,0.05);
            width: 100%;
            height: auto;
        }
        .angle-display {
            font-family: 'Courier New', monospace;
            background: #f0f4f8;
            padding: 0.75rem;
            border-radius: 12px;
            text-align: center;
            font-size: 1.25rem;
        }
        .coterminal-list {
            background: #ffffff;
            border-left: 4px solid #0d6efd;
            padding: 0.75rem 1rem;
            border-radius: 0 12px 12px 0;
            margin: 1rem 0;
        }
        .math-formula {
            font-family: 'SF Mono', 'Cambria Math', monospace;
            background: #f8f9fc;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            border: 1px solid #dee2e6;
        }
        .example-badge {
            background-color: rgba(13,110,253,0.1);
            border-radius: 40px;
            padding: 6px 12px;
            font-size: 0.85rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .example-badge:hover {
            background-color: rgba(13,110,253,0.2);
            transform: translateY(-1px);
        }
        .result-value-lg {
            font-size: 1.8rem;
            font-weight: 600;
            color: #0d6efd;
        }
        .legend-coterm {
            display: inline-flex;
            align-items: center;
            gap: 1rem;
            margin-top: 0.5rem;
            justify-content: center;
        }
        .legend-dot {
            width: 14px;
            height: 14px;
            border-radius: 14px;
            display: inline-block;
        }
        .accordion-button:not(.collapsed) {
            background-color: rgba(13,110,253,0.05);
        }
        .input-group-append-custom {
            margin-left: 0.5rem;
        }
        .pi-hint {
            font-size: 0.8rem;
            color: #6c757d;
            margin-top: 0.25rem;
        }
        .reset-btn {
            margin-left: 1rem;
        }