* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(135deg, #5a8e6b 0%, #8b6f47 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            background: #faf8f3;
            border-radius: 12px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            overflow: hidden;
        }

        .header {
            background: linear-gradient(135deg, #4a7c59 0%, #5a8e6b 100%);
            color: white;
            padding: 40px;
            text-align: center;
            border-bottom: 4px solid #8b6f47;
        }

        .header h1 {
            font-size: 2.5em;
            margin-bottom: 12px;
            font-weight: 700;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }

        .header p {
            opacity: 0.95;
            font-size: 1.15em;
            font-weight: 300;
        }

        .mindmap {
            padding: 40px;
            overflow-x: auto;
        }

        .concept {
            margin: 10px 0;
            animation: fadeIn 0.3s ease-in;
        }

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

        .concept-header {
            display: flex;
            align-items: center;
            padding: 12px 16px;
            background: #ffffff;
            border-left: 4px solid #5a8e6b;
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.2s ease;
            margin-bottom: 5px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
        }

        .concept-header.procedure {
            background: #fff8e8;
            border-left-color: #d4a259;
        }

        .concept-header.procedure:hover {
            background: #ffedc9;
            border-left-color: #c4923f;
        }

        .concept-header:hover {
            background: #f0f5f1;
            border-left-color: #4a7c59;
            transform: translateX(5px);
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
        }

        .concept-header.active {
            background: #5a8e6b;
            color: white;
            border-left-color: #4a7c59;
        }

        .concept-header.procedure.active {
            background: #d4a259;
            color: #2c1810;
            border-left-color: #c4923f;
        }

        .concept-header.highlighted {
            background: #d4a259;
            border-left-color: #c4923f;
            animation: pulse 1s ease-in-out;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.02); }
        }

        .concept-header.no-children {
            cursor: default;
            border-left-color: #a8b5a3;
        }

        .concept-header.no-children:hover {
            background: #ffffff;
            transform: none;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
        }

        .concept-header.procedure.no-children:hover {
            background: #fff8e8;
            transform: none;
        }

        .toggle-icon {
            width: 24px;
            height: 24px;
            margin-right: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: bold;
            transition: transform 0.2s ease;
        }

        .toggle-icon.expanded {
            transform: rotate(90deg);
        }

        .concept-label {
            flex: 1;
            font-weight: 500;
            font-size: 1.05em;
        }

        .concept-alt-label {
            display: block;
            font-size: 0.85em;
            font-weight: 400;
            color: #6c757d;
            font-style: italic;
            margin-top: 2px;
        }

        .concept-header.active .concept-alt-label {
            color: rgba(255, 255, 255, 0.85);
        }

        .concept-header.procedure.active .concept-alt-label {
            color: rgba(44, 24, 16, 0.85);
        }

        .copy-uri-btn {
            background: rgba(90, 142, 107, 0.1);
            color: #4a7c59;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 0.8em;
            margin-left: 8px;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }

        .copy-uri-btn:hover {
            background: #5a8e6b;
            color: white;
            border-color: #5a8e6b;
        }

        .concept-header.active .copy-uri-btn {
            background: rgba(255, 255, 255, 0.2);
            color: white;
        }

        .concept-header.active .copy-uri-btn:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        .concept-notation {
            background: rgba(90, 142, 107, 0.15);
            color: #3d6b4d;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.9em;
            font-weight: 600;
            margin-right: 10px;
        }

        .concept-header.active .concept-notation {
            background: rgba(255, 255, 255, 0.2);
            color: white;
        }

        .concept-count {
            background: rgba(90, 142, 107, 0.15);
            color: #3d6b4d;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.85em;
            font-weight: 600;
        }

        .concept-header.active .concept-count {
            background: rgba(255, 255, 255, 0.2);
            color: white;
        }

        .concept-children {
            margin-left: 30px;
            border-left: 2px solid #d4e0cf;
            padding-left: 20px;
            display: none;
        }

        .concept-children.expanded {
            display: block;
        }

        .concept-definition {
            margin: 5px 0 10px 54px;
            padding: 10px 15px;
            background: #f0f5f1;
            border-radius: 4px;
            font-size: 0.9em;
            color: #3d5a3f;
            font-style: normal;
            font-weight: 500;
            display: none;
            border-left: 3px solid #a8b5a3;
        }

        .definition-item {
            margin-bottom: 6px;
        }

        .definition-item:last-child {
            margin-bottom: 0;
        }

        .definition-source-label {
            margin-left: 6px;
            font-size: 0.85em;
            color: #6b5840;
            font-style: normal;
        }

        .definition-source-link {
            color: #4a7c59;
            text-decoration: none;
            font-style: normal;
            font-size: 0.75em;
            font-weight: 600;
            padding: 2px 6px;
            border-radius: 4px;
            background: rgba(90, 142, 107, 0.12);
        }

        .definition-source-link:hover {
            text-decoration: underline;
        }

        .concept-definition.show {
            display: block;
        }

        .exact-match-info {
            margin: 5px 0 10px 54px;
            padding: 8px 12px;
            background: #e8f4f0;
            border-left: 3px solid #4a7c59;
            border-radius: 4px;
            font-size: 0.85em;
            color: #2c4a35;
            display: none;
        }

        .exact-match-info.show {
            display: block;
        }

        .close-match-info {
            margin: 5px 0 10px 54px;
            padding: 8px 12px;
            background: #eef2f7;
            border-left: 3px solid #4f6d8a;
            border-radius: 4px;
            font-size: 0.85em;
            color: #2f3f52;
            display: none;
        }

        .close-match-info.show {
            display: block;
        }

        .exact-match-link {
            color: #4a7c59;
            text-decoration: underline;
            cursor: pointer;
            font-weight: 500;
        }

        .exact-match-link:hover {
            color: #3d6b4d;
        }

        .close-match-link {
            color: #4f6d8a;
            text-decoration: underline;
            cursor: pointer;
            font-weight: 500;
        }

        .close-match-link:hover {
            color: #3d5168;
        }

        .procedure-badge {
            background: #d4a259;
            color: #2c1810;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.75em;
            font-weight: 700;
            margin-left: 8px;
            text-transform: uppercase;
        }

        .procedures-section {
            margin: 5px 0 10px 54px;
            padding: 10px 15px;
            background: #fff8e8;
            border-left: 3px solid #d4a259;
            border-radius: 4px;
            font-size: 0.9em;
            display: none;
        }

        .procedures-section.show {
            display: block;
        }

        .procedures-title {
            font-weight: 600;
            color: #8b6f47;
            margin-bottom: 8px;
        }

        .top-level {
            margin-left: 0;
            padding-left: 0;
            border-left: none;
        }

        .stats {
            padding: 20px 40px;
            background: linear-gradient(135deg, #f0f5f1 0%, #f5f1e8 100%);
            border-top: 3px solid #8b6f47;
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: center;
            padding: 10px;
        }

        .stat-value {
            font-size: 2em;
            font-weight: bold;
            color: #5a8e6b;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.05);
        }

        .stat-label {
            color: #6b5840;
            font-size: 0.9em;
            margin-top: 5px;
            font-weight: 500;
        }

        .search-box {
            padding: 20px 40px;
            background: linear-gradient(135deg, #f5f1e8 0%, #f0f5f1 100%);
            border-bottom: 2px solid #d4e0cf;
        }

        .search-input {
            width: 100%;
            padding: 12px 20px;
            font-size: 1em;
            border: 2px solid #d4e0cf;
            border-radius: 6px;
            transition: all 0.2s ease;
            background: white;
        }

        .search-input:focus {
            outline: none;
            border-color: #5a8e6b;
            box-shadow: 0 0 0 3px rgba(90, 142, 107, 0.15);
        }

        .search-results {
            margin-top: 15px;
            display: none;
        }

        .search-results.show {
            display: block;
        }

        .search-result-item {
            padding: 10px 15px;
            background: white;
            border: 1px solid #d4e0cf;
            border-radius: 6px;
            margin-bottom: 8px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .search-result-item:hover {
            background: #f0f5f1;
            border-color: #5a8e6b;
            transform: translateX(5px);
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
        }

        .search-result-label {
            font-weight: 500;
            color: #2c3e2d;
        }

        .search-result-notation {
            display: inline-block;
            background: rgba(90, 142, 107, 0.15);
            color: #3d6b4d;
            padding: 2px 8px;
            border-radius: 3px;
            font-size: 0.85em;
            font-weight: 600;
            margin-right: 8px;
        }

        .search-result-path {
            font-size: 0.85em;
            color: #6b5840;
            margin-top: 5px;
        }

        .search-result-paths {
            margin-top: 6px;
        }

        .search-result-path-item {
            padding: 6px 8px;
            background: #fff8e8;
            border-left: 3px solid #d4a259;
            border-radius: 4px;
            margin-top: 6px;
            font-size: 0.85em;
            color: #6b5840;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .search-result-path-item:hover {
            background: #ffedc9;
            border-left-color: #c4923f;
            transform: translateX(4px);
        }

        .search-info {
            padding: 10px 15px;
            background: #e8f4f0;
            border: 1px solid #a8cbba;
            border-radius: 6px;
            color: #2c4a35;
            font-size: 0.9em;
            margin-bottom: 10px;
        }

        .no-results {
            text-align: center;
            padding: 40px;
            color: #6b5840;
            font-style: italic;
        }

        .clear-search {
            display: inline-block;
            margin-top: 10px;
            padding: 8px 16px;
            background: #5a8e6b;
            color: white;
            border-radius: 6px;
            cursor: pointer;
            font-size: 0.9em;
            transition: all 0.2s ease;
        }

        .clear-search:hover {
            background: #4a7c59;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
        }

        .toast {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #5a8e6b;
            color: white;
            padding: 12px 24px;
            border-radius: 6px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            opacity: 0;
            transition: opacity 0.3s ease;
            pointer-events: none;
            z-index: 1000;
        }

        .toast.show {
            opacity: 1;
        }
        /* Floating action buttons */
        .floating-buttons {
            position: fixed;
            right: 30px;
            bottom: 100px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
        }

        .floating-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .floating-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
        }

        .back-to-top {
            background: #5a8e6b;
            color: white;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background: #4a7c59;
        }

        .feedback-btn {
            background: #d4a259;
            color: white;
        }

        .feedback-btn:hover {
            background: #c4923f;
        }

        .footer {
            display: flex;
            align-items: center;
            gap: 30px;
            padding: 40px 60px;
            border-top: 1px solid #d4e0cf;
            flex-wrap: wrap;
        }

        .footer-funding {
            display: flex;
            align-items: center;
            gap: 16px;
            flex: 0 0 auto;
        }

        .footer-funding-logo {
            flex: 0 0 auto;
            max-width: 300px;
        }

        .footer-funding-logo img {
            width: 100%;
            height: auto;
            display: block;
            background: #8b6f47;
            border-radius: 6px;
            padding: 8px;
        }

        .footer-funding-text {
            flex: 0 0 auto;
            font-size: 0.9em;
            color: #555;
            line-height: 1.5;
            margin: 0;
            text-align: right;
        }

        .footer-about {
            flex: 1;
            min-width: 200px;
            border-left: 1px solid #d4e0cf;
            padding-left: 24px;
            font-size: 0.9em;
            color: #777;
            line-height: 1.6;
        }

        .footer-about p {
            margin: 0;
        }

        .footer-about a {
            color: #5a8e6b;
            text-decoration: none;
        }

        .footer-about a:hover {
            text-decoration: underline;
        }
    </style>