/* Tool-specific styles */
        .tool-container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 3rem 1.5rem;
        }

        .tool-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .tool-title {
            font-family: 'Playfair Display', serif;
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--slate-900);
            margin-bottom: 1rem;
        }

        .tool-subtitle {
            font-size: 1.125rem;
            color: var(--slate-600);
            line-height: 1.7;
            max-width: 700px;
            margin: 0 auto;
        }

        .tool-card {
            background: white;
            border: 2px solid var(--stone-200);
            border-radius: 8px;
            padding: 2rem;
            margin-bottom: 2rem;
        }

        .budget-input-section {
            margin-bottom: 2rem;
            padding: 1.5rem;
            background: var(--amber-50);
            border-radius: 6px;
            border-left: 4px solid var(--amber-700);
        }

        .budget-title {
            font-family: 'Playfair Display', serif;
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--slate-900);
            margin-bottom: 1rem;
        }

        .input-field.error {
            border-color: #dc2626;
            background: #fef2f2;
        }

        .error-message {
            color: #dc2626;
            font-size: 0.75rem;
            margin-top: 0.25rem;
            font-weight: 500;
        }

        .channel-section.error {
            border-color: #dc2626;
            background: #fef2f2;
        }

        .validation-summary {
            background: #fef2f2;
            border: 1px solid #dc2626;
            border-radius: 6px;
            padding: 1rem;
            margin: 1rem 0;
            display: none;
        }

        .validation-title {
            font-weight: 600;
            color: #dc2626;
            margin-bottom: 0.5rem;
        }

        .validation-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .validation-item {
            color: #dc2626;
            font-size: 0.875rem;
            margin-bottom: 0.25rem;
            padding-left: 1rem;
            position: relative;
        }

        .validation-item::before {
            content: "•";
            position: absolute;
            left: 0;
        }

        .channel-section.disabled {
            opacity: 0.6;
        }

        .channel-section.disabled .input-field {
            background: var(--stone-100);
            color: var(--slate-400);
        }

        .channel-name-input {
            font-weight: 600;
            color: var(--slate-900);
            border: none;
            background: transparent;
            font-size: 1.125rem;
            font-family: 'Playfair Display', serif;
            width: auto;
            min-width: 100px;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            transition: background 0.2s;
        }

        .channel-name-input:focus {
            outline: none;
            background: white;
            box-shadow: 0 0 0 2px var(--amber-700);
        }

        .add-channel-btn {
            background: var(--stone-200);
            color: var(--slate-700);
            padding: 0.75rem 1.5rem;
            font-size: 0.875rem;
            font-weight: 500;
            border: 2px dashed var(--stone-300);
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
        }

        .add-channel-btn:hover {
            background: var(--stone-100);
            border-color: var(--amber-700);
            color: var(--amber-800);
        }

        .remove-channel-btn {
            background: #fee2e2;
            color: #dc2626;
            border: none;
            padding: 0.5rem;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .remove-channel-btn:hover {
            background: #fecaca;
        }

        .channel-controls {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .channel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1rem;
        }

        .channel-title {
            font-family: 'Playfair Display', serif;
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--slate-900);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .channel-icon {
            width: 24px;
            height: 24px;
            background: var(--amber-700);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 0.875rem;
        }

        .channel-toggle {
            position: relative;
            display: inline-block;
            width: 50px;
            height: 24px;
        }

        .channel-toggle input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .toggle-slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #ccc;
            transition: .4s;
            border-radius: 24px;
        }

        .toggle-slider:before {
            position: absolute;
            content: "";
            height: 18px;
            width: 18px;
            left: 3px;
            bottom: 3px;
            background-color: white;
            transition: .4s;
            border-radius: 50%;
        }

        input:checked + .toggle-slider {
            background-color: var(--amber-700);
        }

        input:checked + .toggle-slider:before {
            transform: translateX(26px);
        }

        .input-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
        }

        .input-group {
            margin-bottom: 1rem;
        }

        .input-label {
            display: block;
            font-weight: 600;
            color: var(--slate-900);
            margin-bottom: 0.5rem;
            font-size: 0.875rem;
        }

        .input-description {
            font-size: 0.75rem;
            color: var(--slate-500);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .input-field {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 2px solid var(--stone-200);
            border-radius: 4px;
            font-size: 1rem;
            transition: border-color 0.2s;
            background: white;
        }

        .input-field:focus {
            outline: none;
            border-color: var(--amber-700);
        }

        .input-field:disabled {
            background: var(--stone-100);
            color: var(--slate-400);
        }

        .input-prefix {
            position: relative;
        }

        .input-prefix::before {
            content: '£';
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--slate-500);
            font-weight: 500;
        }

        .input-prefix .input-field {
            padding-left: 2rem;
        }

        .calculate-btn {
            width: 100%;
            background: var(--amber-700);
            color: white;
            padding: 1rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            transition: background 0.2s;
            margin-top: 1rem;
        }

        .calculate-btn:hover {
            background: var(--amber-800);
        }

        .calculate-btn:disabled {
            background: var(--slate-400);
            cursor: not-allowed;
        }

        .results-section {
            display: none;
            margin-top: 2rem;
        }

        .results-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .results-title {
            font-family: 'Playfair Display', serif;
            font-size: 1.75rem;
            font-weight: 600;
            color: var(--slate-900);
            margin-bottom: 0.5rem;
        }

        .allocation-overview {
            background: white;
            border: 2px solid var(--amber-700);
            border-radius: 8px;
            padding: 2rem;
            margin-bottom: 2rem;
            text-align: center;
        }

        .allocation-amount {
            font-family: 'Playfair Display', serif;
            font-size: 2rem;
            font-weight: 700;
            color: var(--amber-800);
            margin-bottom: 0.5rem;
        }

        .allocation-subtitle {
            color: var(--slate-600);
            font-size: 0.875rem;
        }

        .allocation-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .allocation-card {
            background: linear-gradient(135deg, var(--stone-50) 0%, white 100%);
            border: 1px solid var(--stone-200);
            border-radius: 6px;
            padding: 1.5rem;
            position: relative;
            overflow: hidden;
        }

        .allocation-card.recommended {
            border: 2px solid var(--emerald-500);
            background: linear-gradient(135deg, #ecfdf5 0%, white 100%);
        }

        .allocation-card.secondary {
            border: 2px solid var(--amber-700);
            background: linear-gradient(135deg, var(--amber-50) 0%, white 100%);
        }

        .channel-name {
            font-weight: 600;
            color: var(--slate-900);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .priority-badge {
            background: var(--emerald-500);
            color: white;
            padding: 0.25rem 0.75rem;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .priority-badge.secondary {
            background: var(--amber-700);
        }

        .priority-badge.tertiary {
            background: var(--slate-400);
        }

        .allocation-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .metric-item {
            text-align: center;
        }

        .metric-label {
            font-size: 0.75rem;
            color: var(--slate-500);
            font-weight: 500;
            margin-bottom: 0.25rem;
        }

        .metric-value {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--slate-900);
        }

        .efficiency-bar {
            width: 100%;
            height: 8px;
            background: var(--stone-200);
            border-radius: 4px;
            overflow: hidden;
            margin-top: 1rem;
        }

        .efficiency-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--emerald-500) 0%, var(--amber-700) 100%);
            transition: width 0.3s ease;
        }

        .insights-section {
            background: var(--amber-50);
            border-left: 4px solid var(--amber-700);
            padding: 1.5rem;
            border-radius: 4px;
            margin-top: 2rem;
        }

        .insights-title {
            font-weight: 700;
            color: var(--slate-900);
            margin-bottom: 0.5rem;
        }

        .insights-text {
            color: var(--slate-700);
            line-height: 1.6;
        }

        .portfolio-analysis {
            background: white;
            border: 1px solid var(--stone-200);
            border-radius: 6px;
            padding: 1.5rem;
            margin-top: 2rem;
        }

        .portfolio-title {
            font-weight: 600;
            color: var(--slate-900);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .portfolio-metrics {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
        }

        .portfolio-metric {
            text-align: center;
            padding: 1rem;
            background: var(--stone-50);
            border-radius: 4px;
        }

        .portfolio-metric-label {
            font-size: 0.75rem;
            color: var(--slate-500);
            font-weight: 500;
            margin-bottom: 0.25rem;
        }

        .portfolio-metric-value {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--slate-900);
        }

        /* FAQ Section Styles */
        .faq-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid var(--stone-200);
        }

        .faq-item {
            border: 1px solid var(--stone-200);
            border-radius: 6px;
            margin-bottom: 1rem;
            background: white;
            overflow: hidden;
            transition: all 0.2s;
        }

        .faq-item:hover {
            border-color: var(--amber-700);
        }

        .faq-item.active {
            border-color: var(--amber-700);
            box-shadow: 0 4px 12px rgba(180, 83, 9, 0.1);
        }

        .faq-question {
            padding: 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: white;
            transition: background 0.2s;
        }

        .faq-question:hover {
            background: var(--stone-50);
        }

        .faq-question h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--slate-900);
            margin: 0;
            flex: 1;
        }

        .faq-question svg {
            width: 20px;
            height: 20px;
            color: var(--slate-400);
            transition: transform 0.2s;
            flex-shrink: 0;
            margin-left: 1rem;
        }

        .faq-item.active .faq-question svg {
            transform: rotate(180deg);
            color: var(--amber-700);
        }

        .faq-answer {
            padding: 0 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
            background: var(--stone-50);
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 1.5rem;
        }

        .faq-answer p {
            color: var(--slate-700);
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        .faq-answer p:last-child {
            margin-bottom: 0;
        }

        .faq-answer strong {
            color: var(--slate-900);
            font-weight: 600;
        }

        /* Methodology section */
        .methodology-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid var(--stone-200);
        }

        .methodology-title {
            font-family: 'Playfair Display', serif;
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--slate-900);
            margin-bottom: 1rem;
        }

        .methodology-text {
            color: var(--slate-600);
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        /* Mobile Menu */
        .mobile-menu-button {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
        }

        .mobile-menu-button svg {
            width: 24px;
            height: 24px;
            color: var(--slate-600);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: white;
            border-bottom: 1px solid var(--stone-200);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            z-index: 100;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu-content {
            padding: 1rem 1.5rem;
        }

        .mobile-menu-item {
            display: block;
            padding: 0.75rem 0;
            color: var(--slate-600);
            text-decoration: none;
            font-weight: 500;
            border-bottom: 1px solid var(--stone-100);
        }

        .mobile-menu-item:hover {
            color: var(--slate-900);
        }

        .mobile-menu-section {
            margin: 1rem 0;
        }

        .mobile-menu-title {
            font-weight: 600;
            color: var(--slate-900);
            margin-bottom: 0.5rem;
            font-size: 0.875rem;
        }

        /* Footer */
        footer {
            border-top: 2px solid var(--stone-200);
            background: white;
            margin-top: 4rem;
        }

        .footer-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 3rem 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-logo {
            font-family: 'Playfair Display', serif;
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .footer-tagline {
            font-size: 0.875rem;
            color: var(--slate-600);
        }

        .footer-title {
            font-weight: 500;
            margin-bottom: 1rem;
            font-size: 0.875rem;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-links a {
            font-size: 0.875rem;
            color: var(--slate-600);
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: var(--slate-900);
        }

        .footer-bottom {
            border-top: 1px solid var(--stone-200);
            padding-top: 2rem;
            text-align: center;
            font-size: 0.875rem;
            color: var(--slate-500);
        }

        @media (max-width: 768px) {
            .input-grid {
                grid-template-columns: 1fr;
            }
            
            .allocation-grid {
                grid-template-columns: 1fr;
            }
            
            .portfolio-metrics {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }

            .mobile-menu-button {
                display: block;
            }

            .footer-bottom {
                text-align: center;
            }

            .footer-bottom > div:first-child {
                flex-direction: column;
                gap: 1rem;
            }
        }