:root {
            --color-primary: #208092;
            --color-primary-hover: #1a6d79;
            --color-secondary: rgba(94, 82, 64, 0.12);
            --color-text: #134252;
            --color-text-secondary: #626c71;
            --color-border: rgba(94, 82, 64, 0.2);
            --color-bg: #fcfcf9;
            --color-surface: #ffffff;
            --color-success: #208092;
            --color-error: #c01537;
            --color-warning: #a84d2f;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            margin: 0;
            padding: 20px;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
        }

        .container {
            max-width: 1600px;
            margin: 0 auto;
        }

        header {
            margin-bottom: 30px;
        }

        h1 {
            margin: 0 0 5px 0;
            font-size: 32px;
            font-weight: 600;
        }

        .subtitle {
            color: var(--color-text-secondary);
            font-size: 14px;
            margin: 0;
        }

        .layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 30px;
            margin-top: 30px;
        }

        @media (max-width: 1400px) {
            .layout {
                grid-template-columns: 1fr;
            }
        }

        .card {
            background: var(--color-surface);
            border-radius: 12px;
            border: 1px solid var(--color-border);
            padding: 24px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }

        .card h2 {
            margin: 0 0 20px 0;
            font-size: 18px;
            font-weight: 600;
        }

        .form-group {
            margin-bottom: 14px;
        }

        .form-group label {
            display: block;
            font-size: 12px;
            font-weight: 500;
            margin-bottom: 6px;
            color: var(--color-text);
        }

        .form-group .sublabel {
            font-size: 11px;
            color: var(--color-text-secondary);
            margin-top: 3px;
        }

        input,
        select {
            width: 100%;
            padding: 10px 12px;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            font-size: 13px;
            color: var(--color-text);
            background: var(--color-surface);
        }

        input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(32, 128, 146, 0.1);
        }

        .row-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .section-title {
            font-size: 12px;
            font-weight: 600;
            margin: 16px 0 10px 0;
            padding-top: 12px;
            border-top: 1px solid var(--color-border);
            color: var(--color-text);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 10px 0;
        }

        .checkbox-group input[type="checkbox"] {
            width: auto;
            margin: 0;
            cursor: pointer;
        }

        .checkbox-group label {
            margin: 0;
            cursor: pointer;
            font-weight: 400;
            font-size: 13px;
        }

        .results-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 20px;
        }

        @media (max-width: 768px) {
            .results-grid {
                grid-template-columns: 1fr;
            }
        }

        .result-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 8px;
            padding: 12px;
        }

        .result-card-label {
            font-size: 10px;
            font-weight: 500;
            color: var(--color-text-secondary);
            margin-bottom: 4px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .result-card-value {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 2px;
        }

        .result-card-desc {
            font-size: 11px;
            color: var(--color-text-secondary);
        }

        .chart-container {
            position: relative;
            height: 350px;
            margin-bottom: 20px;
        }

        .button-group {
            display: flex;
            gap: 10px;
            margin-top: 16px;
        }

        button {
            padding: 10px 20px;
            border: none;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
        }

        .btn-primary {
            background: var(--color-primary);
            color: white;
            flex: 1;
        }

        .btn-primary:hover {
            background: var(--color-primary-hover);
        }

        .btn-secondary {
            background: var(--color-secondary);
            color: var(--color-text);
            flex: 1;
        }

        .btn-secondary:hover {
            background: rgba(94, 82, 64, 0.18);
        }

        .btn-sm {
            padding: 6px 12px;
            font-size: 11px;
            flex: none;
        }

        .alert {
            padding: 12px;
            border-radius: 8px;
            margin-bottom: 12px;
            display: none;
            font-size: 12px;
        }

        .alert.show {
            display: block;
        }

        .alert-warning {
            background: rgba(168, 77, 47, 0.1);
            border: 1px solid rgba(168, 77, 47, 0.3);
            color: var(--color-warning);
        }

        .alert-success {
            background: rgba(32, 128, 146, 0.1);
            border: 1px solid rgba(32, 128, 146, 0.3);
            color: var(--color-success);
        }

        .tab-buttons {
            display: flex;
            gap: 8px;
            margin-bottom: 16px;
            border-bottom: 1px solid var(--color-border);
            overflow-x: auto;
        }

        .tab-button {
            background: none;
            border: none;
            padding: 10px 12px;
            font-size: 12px;
            font-weight: 500;
            color: var(--color-text-secondary);
            cursor: pointer;
            border-bottom: 2px solid transparent;
            transition: all 0.2s;
            white-space: nowrap;
        }

        .tab-button.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
        }

        .tab-content {
            display: none;
        }

        .tab-content.active {
            display: block;
        }

        .item-row {
            background: rgba(32, 128, 146, 0.05);
            padding: 10px;
            border-radius: 6px;
            margin-bottom: 6px;
            border: 1px solid var(--color-border);
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 50px;
            gap: 8px;
            align-items: center;
        }

        .item-row input {
            font-size: 12px;
            padding: 6px 8px;
        }

        .remove-btn {
            background: #c01537;
            color: white;
            padding: 4px 8px;
            font-size: 10px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }

        .remove-btn:hover {
            background: #a01228;
        }

        .info-box {
            background: rgba(32, 128, 146, 0.05);
            border-left: 3px solid var(--color-primary);
            border-radius: 6px;
            padding: 12px;
            margin: 12px 0;
            font-size: 12px;
            line-height: 1.6;
        }