/* ===== LOGIN PAGE STYLES - HIDDEN ===== */
        #login-page {
            display: none !important;
        }
        
        /* ===== SROI SYSTEM STYLES ===== */
        #sroi-system {
            display: block !important;
        }
        :root {
            --primary: #a73b24;
            --primary-light: #c4512f;
            --secondary: #d4a227;
            --secondary-light: #e5b835;
            --accent: #38a169;
            --danger: #e53e3e;
            --bg-gradient: linear-gradient(135deg, #8b2f1d 0%, #a73b24 30%, #c4512f 70%, #8b2f1d 100%);
            --card-bg: white;
            --shadow: 0 10px 40px rgba(167, 59, 36, 0.15);
            --shadow-hover: 0 20px 60px rgba(167, 59, 36, 0.25);
            --border-radius: 16px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Prompt', sans-serif;
            background: #e8ecf0;
            min-height: 100vh;
            color: #2d3748;
        }

        /* Header */
        .header {
            background: var(--bg-gradient);
            color: white;
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 3rem;
            background: rgba(0, 0, 0, 0.1);
        }

        .logo-section {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .logo-icon {
            width: 60px;
            height: 60px;
            background: white;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .logo-text h1 {
            font-family: 'Kanit', sans-serif;
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: 1px;
        }

        .logo-text p {
            font-size: 0.85rem;
            opacity: 0.9;
        }

        .header-actions {
            display: flex;
            gap: 1rem;
        }

        .btn-header {
            padding: 0.75rem 1.5rem;
            border: 1px solid rgba(255, 255, 255, 0.35);
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.1) 100%);
            color: white;
            border-radius: 8px;
            cursor: pointer;
            font-family: 'Prompt', sans-serif;
            font-weight: 500;
            transition: var(--transition);
            box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.4), 0 2px 6px rgba(0, 0, 0, 0.15);
            backdrop-filter: blur(4px);
        }

        .btn-header:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
        }

        .btn-logout {
            background: rgba(220, 53, 69, 0.3);
            border-color: rgba(220, 53, 69, 0.5);
        }

        .btn-logout:hover {
            background: rgba(220, 53, 69, 0.5);
            border-color: rgba(220, 53, 69, 0.8);
        }

        /* Language Toggle Button */
        .btn-language {
            background: linear-gradient(180deg, rgba(56, 161, 105, 0.4) 0%, rgba(56, 161, 105, 0.2) 100%);
            border-color: rgba(56, 161, 105, 0.5);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-language:hover {
            background: rgba(56, 161, 105, 0.5);
            border-color: rgba(56, 161, 105, 0.8);
        }

        .btn-language .lang-text {
            font-weight: 600;
        }

        /* Hide Google Translate elements */
        .goog-te-banner-frame, .goog-te-balloon-frame {
            display: none !important;
        }
        
        body {
            top: 0 !important;
        }
        
        .goog-te-gadget {
            display: none !important;
        }
        
        .skiptranslate {
            display: none !important;
        }

        #google_translate_element {
            display: none !important;
        }

        /* Navigation */
        .nav-tabs {
            display: flex;
            padding: 0 3rem;
            gap: 0.5rem;
        }

        .nav-tab {
            padding: 1rem 2rem;
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.05) 100%);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-bottom: none;
            color: rgba(255, 255, 255, 0.85);
            font-family: 'Prompt', sans-serif;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            border-radius: 12px 12px 0 0;
            box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.3), 0 2px 4px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(4px);
        }

        .nav-tab:hover {
            color: white;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-tab.active {
            color: var(--primary);
            background: var(--card-bg);
        }

        .nav-tab i {
            margin-right: 0.5rem;
        }

        /* Main Content */
        .main-content {
            padding: 2rem 3rem 4rem;
            max-width: 1600px;
            margin: 0 auto;
        }

        .section {
            display: none;
            animation: fadeIn 0.4s ease-out;
        }

        .section.active {
            display: block;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Cards */
        .card {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 2rem;
            margin-bottom: 1.5rem;
            transition: var(--transition);
        }

        .card:hover {
            box-shadow: var(--shadow-hover);
        }

        .card-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid #e2e8f0;
        }

        .card-icon {
            width: 48px;
            height: 48px;
            background: var(--bg-gradient);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
        }

        .card-title {
            font-family: 'Kanit', sans-serif;
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary);
        }

        .card-subtitle {
            font-size: 0.85rem;
            color: #718096;
        }

        /* Form Elements */
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
        }

        .form-group {
            margin-bottom: 1.25rem;
        }

        .form-group.full-width {
            grid-column: 1 / -1;
        }

        .form-label {
            display: block;
            font-weight: 500;
            margin-bottom: 0.5rem;
            color: var(--primary);
            font-size: 0.95rem;
        }

        .form-label .required {
            color: var(--danger);
            margin-left: 0.25rem;
        }

        .form-control {
            width: 100%;
            padding: 0.875rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-family: 'Prompt', sans-serif;
            font-size: 1rem;
            transition: var(--transition);
            background: white;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background: white;
            box-shadow: 0 0 0 4px rgba(167, 59, 36, 0.1);
        }

        .form-control::placeholder {
            color: #a0aec0;
        }

        select.form-control {
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23718096'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            background-size: 1.25rem;
            padding-right: 3rem;
        }

        textarea.form-control {
            min-height: 100px;
            resize: vertical;
        }

        /* Other Input Container */
        .other-input-container {
            display: none;
            margin-top: 0.75rem;
        }

        .other-input-container.show {
            display: block;
            animation: slideDown 0.3s ease-out;
        }

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

        /* Date Range */
        .date-range {
            display: flex;
            gap: 1rem;
            align-items: center;
        }

        .date-range span {
            color: #718096;
            font-weight: 500;
        }

        /* SDG Checkboxes */
        .sdg-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 0.75rem;
        }

        .sdg-item {
            display: flex;
            align-items: center;
            padding: 0.75rem 1rem;
            background: #e8ecf0;
            border-radius: 10px;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
        }

        .sdg-item:hover {
            background: #edf2f7;
        }

        .sdg-item.selected {
            background: linear-gradient(135deg, rgba(167, 59, 36, 0.1), rgba(196, 81, 47, 0.1));
            border-color: var(--primary);
        }

        .sdg-item input {
            margin-right: 0.75rem;
            width: 18px;
            height: 18px;
            accent-color: var(--primary);
        }

        .sdg-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--primary);
            color: white;
            border-radius: 6px;
            font-size: 0.7rem;
            font-weight: 600;
            margin-right: 0.75rem;
        }

        .sdg-label {
            font-size: 0.80rem;
            color: #4a5568;
        }

        /* SDG Color Codes */
        .sdg-1 .sdg-number { background: #E5243B; }
        .sdg-2 .sdg-number { background: #DDA63A; }
        .sdg-3 .sdg-number { background: #4C9F38; }
        .sdg-4 .sdg-number { background: #C5192D; }
        .sdg-5 .sdg-number { background: #FF3A21; }
        .sdg-6 .sdg-number { background: #26BDE2; }
        .sdg-7 .sdg-number { background: #FCC30B; }
        .sdg-8 .sdg-number { background: #A21942; }
        .sdg-9 .sdg-number { background: #FD6925; }
        .sdg-10 .sdg-number { background: #DD1367; }
        .sdg-11 .sdg-number { background: #FD9D24; }
        .sdg-12 .sdg-number { background: #BF8B2E; }
        .sdg-13 .sdg-number { background: #3F7E44; }
        .sdg-14 .sdg-number { background: #0A97D9; }
        .sdg-15 .sdg-number { background: #56C02B; }
        .sdg-16 .sdg-number { background: #00689D; }
        .sdg-17 .sdg-number { background: #19486A; }

        /* Buttons */
        .btn {
            padding: 0.875rem 1.5rem;
            border: none;
            border-radius: 10px;
            font-family: 'Prompt', sans-serif;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-primary {
            background: var(--bg-gradient);
            color: white;
            box-shadow: 0 4px 15px rgba(167, 59, 36, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(167, 59, 36, 0.4);
        }

        .btn-secondary {
            background: #edf2f7;
            color: var(--primary);
        }

        .btn-secondary:hover {
            background: #e2e8f0;
        }

        .btn-success {
            background: linear-gradient(135deg, #38a169, #2f855a);
            color: white;
            box-shadow: 0 4px 15px rgba(56, 161, 105, 0.3);
        }

        .btn-success:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(56, 161, 105, 0.4);
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            color: white;
            box-shadow: 0 4px 15px rgba(201, 162, 39, 0.3);
        }

        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(201, 162, 39, 0.4);
        }

        .btn-danger {
            background: linear-gradient(135deg, #e53e3e, #c53030);
            color: white;
        }

        .btn-danger:hover {
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 0.5rem 1rem;
            font-size: 0.875rem;
        }

        /* Tables */
        .table-container {
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid #e2e8f0;
        }

        table {
            width: 100%;
            border-collapse: collapse;
        }

        th {
            background: var(--bg-gradient);
            color: white;
            padding: 1rem;
            text-align: left;
            font-weight: 500;
            white-space: nowrap;
        }

        td {
            padding: 1rem;
            border-bottom: 1px solid #e2e8f0;
            vertical-align: top;
        }

        tr:hover {
            background: #e8ecf0;
        }

        tr:last-child td {
            border-bottom: none;
        }
        
        /* ===== Changes Table Specific Styles ===== */
        #changesTableWrapper th,
        #changesTableWrapper td {
            padding: 0.6rem 0.5rem;
            font-size: 0.85rem;
        }
        
        #changesTableWrapper th {
            white-space: normal;
            line-height: 1.3;
        }
        
        /* กำหนดขนาดคอลัมน์ของตาราง Changes */
        #changesTableWrapper th:nth-child(1),
        #changesTableWrapper td:nth-child(1) { width: 35px; text-align: center; } /* # */
        
        #changesTableWrapper th:nth-child(2),
        #changesTableWrapper td:nth-child(2) { min-width: 100px; max-width: 130px; } /* Stakeholder */
        
        #changesTableWrapper th:nth-child(3),
        #changesTableWrapper td:nth-child(3) { width: 70px; } /* จำนวน/หน่วย */
        
        #changesTableWrapper th:nth-child(4),
        #changesTableWrapper td:nth-child(4) { min-width: 90px; max-width: 120px; } /* Input */
        
        #changesTableWrapper th:nth-child(5),
        #changesTableWrapper td:nth-child(5) { width: 85px; } /* มูลค่า Input */
        
        #changesTableWrapper th:nth-child(6),
        #changesTableWrapper td:nth-child(6) { width: 70px; } /* ประเภท Outcome */
        
        #changesTableWrapper th:nth-child(7),
        #changesTableWrapper td:nth-child(7) { min-width: 90px; max-width: 120px; } /* Outcome */
        
        #changesTableWrapper th:nth-child(8),
        #changesTableWrapper td:nth-child(8) { min-width: 80px; max-width: 100px; } /* ตัวชี้วัด */
        
        #changesTableWrapper th:nth-child(9),
        #changesTableWrapper td:nth-child(9) { min-width: 80px; max-width: 100px; } /* Financial Proxy */
        
        #changesTableWrapper th:nth-child(10),
        #changesTableWrapper td:nth-child(10) { width: 95px; } /* มูลค่า Y0-Y5 */
        
        #changesTableWrapper th:nth-child(11),
        #changesTableWrapper td:nth-child(11) { width: 75px; } /* Adjustments */
        
        #changesTableWrapper th:nth-child(12),
        #changesTableWrapper td:nth-child(12) { width: 70px; } /* Drop-off */
        
        #changesTableWrapper th:nth-child(13),
        #changesTableWrapper td:nth-child(13) { width: 70px; text-align: center; } /* จัดการ */
        
        #changesTableWrapper td {
            word-wrap: break-word;
            overflow-wrap: break-word;
        }
        
        /* ตารางบน container ให้ไม่ต้อง scroll */
        .changes-table-container {
            overflow-x: visible;
        }
        
        .changes-table-container table {
            table-layout: fixed;
            width: 100%;
        }

        .table-actions {
            display: flex;
            gap: 0.5rem;
        }

        .btn-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-edit {
            background: #edf2f7;
            color: var(--primary);
        }

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

        .btn-delete {
            background: #fed7d7;
            color: var(--danger);
        }

        .btn-delete:hover {
            background: var(--danger);
            color: white;
        }

        /* Sub-tabs */
        .sub-tabs {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
            background: #e8ecf0;
            padding: 0.5rem;
            border-radius: 12px;
        }

        .sub-tab {
            padding: 0.75rem 1.5rem;
            background: transparent;
            border: none;
            border-radius: 8px;
            font-family: 'Prompt', sans-serif;
            font-size: 0.95rem;
            font-weight: 500;
            color: #718096;
            cursor: pointer;
            transition: var(--transition);
        }

        .sub-tab:hover {
            color: var(--primary);
            background: white;
        }

        .sub-tab.active {
            background: white;
            color: var(--primary);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .sub-content {
            display: none;
        }

        .sub-content.active {
            display: block;
            animation: fadeIn 0.3s ease-out;
        }

        /* Year Grid */
        .year-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
        }

        .year-input {
            text-align: center;
        }

        .year-label {
            display: block;
            font-size: 0.85rem;
            color: #718096;
            margin-bottom: 0.5rem;
            font-weight: 500;
        }

        /* Percent Input */
        .percent-input {
            position: relative;
        }

        .percent-input input {
            padding-right: 2.5rem;
        }

        .percent-input::after {
            content: '%';
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: #718096;
            font-weight: 500;
        }

        /* Results Section */
        .results-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .result-card {
            background: linear-gradient(135deg, #f7fafc, #edf2f7);
            border-radius: var(--border-radius);
            padding: 2rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            transition: var(--transition);
        }

        .result-card.highlight {
            background: var(--bg-gradient);
            color: white;
            border: none;
        }

        .result-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 1rem;
            background: white;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        .result-card.highlight .result-icon {
            background: rgba(255, 255, 255, 0.2);
            color: white;
        }

        .result-label {
            font-size: 0.95rem;
            margin-bottom: 0.75rem;
            opacity: 0.9;
        }

        .result-value {
            font-family: 'Kanit', sans-serif;
            font-size: 2.5rem;
            font-weight: 700;
        }

        .result-unit {
            font-size: 0.85rem;
            opacity: 0.8;
            margin-top: 0.5rem;
        }

        /* Summary Actions */
        .summary-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            justify-content: center;
            padding: 2rem;
            background: #e8ecf0;
            border-radius: var(--border-radius);
        }

        /* Modal */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 2000;
            align-items: center;
            justify-content: center;
            padding: 2rem;
        }

        .modal-overlay.show {
            display: flex;
            animation: fadeIn 0.3s ease-out;
        }

        .modal {
            background: white;
            border-radius: var(--border-radius);
            max-width: 600px;
            width: 100%;
            max-height: 90vh;
            overflow-y: auto;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
        }

        .modal-header {
            padding: 1.5rem 2rem;
            border-bottom: 1px solid #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .modal-title {
            font-family: 'Kanit', sans-serif;
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary);
        }

        .modal-close {
            width: 36px;
            height: 36px;
            border: none;
            background: #e8ecf0;
            border-radius: 8px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .modal-close:hover {
            background: #e2e8f0;
        }

        .modal-body {
            padding: 2rem;
        }

        .modal-footer {
            padding: 1.5rem 2rem;
            border-top: 1px solid #e2e8f0;
            display: flex;
            gap: 1rem;
            justify-content: flex-end;
        }

        /* Badge */
        .badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        .badge-primary {
            background: rgba(167, 59, 36, 0.1);
            color: var(--primary);
        }

        .badge-success {
            background: rgba(56, 161, 105, 0.1);
            color: var(--accent);
        }

        .badge-warning {
            background: rgba(201, 162, 39, 0.1);
            color: var(--secondary);
        }

        /* Empty State */
        .empty-state {
            text-align: center;
            padding: 4rem 2rem;
            color: #718096;
        }

        .empty-state i {
            font-size: 4rem;
            margin-bottom: 1rem;
            opacity: 0.5;
        }

        .empty-state h3 {
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
            color: #4a5568;
        }

        /* Responsive */
        /* ===== Responsive: Tablet ===== */
        @media (max-width: 1024px) {
            .header-top {
                padding: 1rem 1.5rem;
            }

            .header-actions {
                flex-wrap: wrap;
                gap: 0.5rem;
            }

            .main-content {
                padding: 1.5rem;
            }

            .form-grid {
                grid-template-columns: 1fr;
            }

            .year-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .table-container {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }

            table {
                min-width: 1200px;
            }
        }

        /* ===== Responsive: Mobile ===== */
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 1rem;
                text-align: center;
                padding: 1rem;
            }

            .header-actions {
                flex-wrap: wrap;
                justify-content: center;
                gap: 0.5rem;
            }

            .btn-header {
                padding: 0.5rem 0.75rem;
                font-size: 0.8rem;
            }

            .logo-text h1 {
                font-size: 1.3rem;
            }

            .logo-text p {
                font-size: 0.75rem;
            }

            .logo-icon {
                width: 45px;
                height: 45px;
                font-size: 1.2rem;
            }

            .nav-tabs {
                padding: 0 0.5rem;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                gap: 0;
            }

            .nav-tab {
                padding: 0.6rem 0.75rem;
                font-size: 0.8rem;
                white-space: nowrap;
                min-width: 0;
            }

            .nav-tab i {
                display: none;
            }

            .main-content {
                padding: 1rem;
            }

            .card {
                padding: 1rem;
            }

            .card-header {
                flex-direction: column;
                gap: 0.75rem;
            }

            .card-title {
                font-size: 1.1rem;
            }

            .form-grid {
                grid-template-columns: 1fr;
            }

            .date-range {
                flex-direction: column;
            }

            .year-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .sdg-container {
                grid-template-columns: repeat(2, 1fr);
            }

            .sdg-item {
                min-height: 60px;
            }

            .section-nav {
                flex-direction: column;
                gap: 0.5rem;
            }

            .btn-nav {
                width: 100%;
                justify-content: center;
            }

            .table-container {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }

            table {
                min-width: 1200px;
            }

            th, td {
                padding: 0.6rem 0.5rem;
                font-size: 0.8rem;
            }

            .add-btn-container {
                text-align: center;
            }

            .add-btn {
                width: 100%;
                justify-content: center;
            }

            .summary-actions {
                flex-direction: column;
            }

            .btn {
                justify-content: center;
            }

            .result-card {
                padding: 1.5rem;
            }

            .result-value {
                font-size: 2.5rem;
            }

            .modal-content {
                width: 95%;
                max-width: 95%;
                max-height: 90vh;
                overflow-y: auto;
            }

            .sub-tabs {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }

            .sub-tab {
                white-space: nowrap;
                font-size: 0.85rem;
                padding: 0.5rem 0.75rem;
            }

            .toast {
                left: 0.5rem;
                right: 0.5rem;
                bottom: 0.5rem;
                font-size: 0.85rem;
            }
        }

        /* ===== Responsive: Small Phone ===== */
        @media (max-width: 480px) {
            .header-top {
                padding: 0.75rem;
            }

            .logo-text h1 {
                font-size: 1.1rem;
            }

            .btn-header {
                padding: 0.4rem 0.6rem;
                font-size: 0.75rem;
            }

            .main-content {
                padding: 0.75rem;
            }

            .card {
                padding: 0.75rem;
                border-radius: 10px;
            }

            .card-title {
                font-size: 1rem;
            }

            .form-label {
                font-size: 0.85rem;
            }

            .form-control {
                padding: 0.6rem;
                font-size: 0.85rem;
            }

            .year-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.5rem;
            }

            .sdg-container {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.5rem;
            }

            .sdg-item {
                padding: 0.5rem;
                font-size: 0.75rem;
            }

            .result-value {
                font-size: 2rem;
            }
        }

        /* Print Styles */
        /* Print Styles */
        @media print {
            .header, .nav-tabs, .btn, .section-nav, .summary-actions, .add-btn-container, .btn-nav {
                display: none !important;
            }

            .card {
                box-shadow: none;
                break-inside: avoid;
            }
            
            body {
                background: white !important;
            }
            
            .main-content {
                padding: 0 !important;
            }
            
            .section {
                display: block !important;
            }
            
            /* แสดงเฉพาะ section4 (สรุปผล) ในหน้าพิมพ์ */
            #section1, #section2, #section3 {
                display: none !important;
            }
            
            #section4 {
                display: block !important;
            }
            
            /* ปรับขนาดให้พอดี 1 หน้า */
            @page {
                size: A4;
                margin: 1cm;
            }
        }

        /* Custom Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: #e8ecf0;
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb {
            background: #c1c1c1;
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: #a1a1a1;
        }

        /* Toast Notification */
        .toast {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            padding: 1rem 1.5rem;
            background: var(--primary);
            color: white;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            display: none;
            align-items: center;
            gap: 0.75rem;
            z-index: 3000;
            animation: slideUp 0.3s ease-out;
        }

        .toast.show {
            display: flex;
        }

        .toast.success {
            background: var(--accent);
        }

        .toast.error {
            background: var(--danger);
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Add Button Float */
        .add-btn-container {
            display: flex;
            justify-content: flex-end;
            margin-bottom: 1rem;
        }

        /* File Upload Styles */
        .file-upload-container {
            position: relative;
        }
        .file-preview {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 10px;
            padding: 10px 15px;
            background: #f8f9fa;
            border-radius: 8px;
            border: 1px solid #e2e8f0;
        }
        .file-preview i {
            font-size: 24px;
        }
        .file-preview .text-danger {
            color: #dc3545;
        }
        .btn-remove-file {
            margin-left: auto;
            background: #ff4757;
            color: white;
            border: none;
            border-radius: 50%;
            width: 24px;
            height: 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .btn-remove-file:hover {
            background: #ff6b7a;
        }
        .form-text {
            display: block;
            margin-top: 5px;
            font-size: 0.85rem;
            color: #6c757d;
        }
        .required-star {
            color: #dc3545;
            font-weight: bold;
        }
        input[type="file"] {
            padding: 8px;
        }
        input[type="file"]::-webkit-file-upload-button {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 6px;
            cursor: pointer;
            margin-right: 10px;
        }
        input[type="file"]::-webkit-file-upload-button:hover {
            background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
        }

        /* Navigation Buttons */
        .section-nav {
            display: flex;
            justify-content: space-between;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #e2e8f0;
        }
        .section-nav.end {
            justify-content: flex-end;
        }
        .section-nav.start {
            justify-content: flex-start;
        }
        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .btn-next {
            background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
            color: white;
            box-shadow: 0 4px 15px rgba(192, 57, 43, 0.4);
        }
        .btn-next:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(192, 57, 43, 0.5);
        }
        .btn-prev {
            background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
            color: white;
            box-shadow: 0 4px 15px rgba(192, 57, 43, 0.4);
        }
        .btn-prev:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(192, 57, 43, 0.5);
        }
        body {
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            margin: 0;
        }

        .footer-bar {
            margin-top: auto;
            width: 100%;
            background: linear-gradient(135deg, #8b2f1d 0%, #a73b24 30%, #c4512f 70%, #8b2f1d 100%);
            color: white;
            text-align: center;
            padding: 10px 0;
        }

        .footer-bar p {
            margin: 0;
            font-size: 14px;
        }

        /* ===== Dynamic Year Rows ===== */
        .year-row {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.5rem;
            padding: 0.5rem 0.75rem;
            background: #f7fafc;
            border-radius: 8px;
            border: 1px solid #e2e8f0;
        }

        .year-row select {
            width: 130px;
            padding: 0.5rem;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-family: 'Prompt', sans-serif;
            font-size: 0.9rem;
        }

        .year-row input[type="number"] {
            flex: 1;
            padding: 0.5rem;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-size: 0.9rem;
        }

        .year-row .btn-remove-year {
            width: 32px;
            height: 32px;
            border: none;
            background: #fed7d7;
            color: #e53e3e;
            border-radius: 6px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s;
        }

        .year-row .btn-remove-year:hover {
            background: #e53e3e;
            color: white;
        }

        .btn-add-year {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1rem;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-family: 'Prompt', sans-serif;
            font-size: 0.85rem;
            font-weight: 500;
            margin-top: 0.5rem;
            transition: all 0.25s;
        }

        .btn-add-year:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
        }

        .input-total-row {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-top: 0.75rem;
            padding: 0.75rem 1rem;
            background: #ebf4ff;
            border-radius: 8px;
            font-size: 0.95rem;
            color: #2c5282;
        }

        /* ===== Quantity + Unit ===== */
        .quantity-unit-row {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .quantity-unit-row input {
            flex: 1;
        }

        .unit-label {
            padding: 0.5rem 1rem;
            background: #e2e8f0;
            border-radius: 8px;
            font-weight: 500;
            color: #4a5568;
            white-space: nowrap;
        }

        /* ===== Auto Calc Box ===== */
        .auto-calc-box {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            padding: 0.75rem 1rem;
            background: linear-gradient(135deg, #f0fff4, #e6fffa);
            border: 2px solid #38a169;
            border-radius: 10px;
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }

        .auto-calc-label {
            font-weight: 600;
            color: #276749;
        }

        .auto-calc-box strong {
            color: #276749;
            font-size: 1.1rem;
        }