:root {
            --primary: #1a4d2e;
            --primary-light: #2d6a4f;
            --accent: #d4a574;
            --accent-dark: #b8936d;
            --bg: #faf8f5;
            --surface: #ffffff;
            --text: #2c2c2c;
            --text-light: #6b6b6b;
            --border: #e5e0d8;
            --success: #52b788;
            --warning: #f4a261;
            --danger: #e76f51;
            --shadow: rgba(26, 77, 46, 0.08);
        }

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

        body {
            font-family: 'DM Sans', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 2rem;
            animation: fadeIn 0.6s ease-out;
        }

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

        header {
            position: sticky;
            top: 0;
            background: var(--bg);
            z-index: 100;
            padding-bottom: 1rem;
            margin-bottom: 0;
            animation: slideDown 0.8s ease-out;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        h1 {
            font-family: 'Crimson Pro', serif;
            font-size: 3rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }

        .subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            font-weight: 400;
        }

        .dashboard {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1rem;
            margin-bottom: 1.5rem;
            animation: fadeIn 0.8s ease-out 0.2s both;
        }

        .stat-card {
            background: var(--surface);
            padding: 1.5rem;
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: 0 4px 20px var(--shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: visible;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px var(--shadow);
        }

        .stat-card:hover::before {
            transform: scaleX(1);
        }

        .stat-tooltip {
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(-10px);
            background: rgba(0, 0, 0, 0.95);
            color: white;
            padding: 1rem;
            border-radius: 8px;
            font-size: 0.85rem;
            min-width: 200px;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s, transform 0.3s;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .stat-card:hover .stat-tooltip {
            opacity: 1;
            transform: translateX(-50%) translateY(-5px);
        }

        .stat-tooltip-line {
            display: flex;
            justify-content: space-between;
            padding: 0.25rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .stat-tooltip-line:last-child {
            border-bottom: none;
        }

        .main-tab {
            flex: 1;
            padding: 1rem;
            background: none;
            border: none;
            border-bottom: 3px solid transparent;
            color: var(--text-light);
            font-weight: 600;
            cursor: pointer;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .main-tab:hover {
            color: var(--text);
            background: var(--bg);
        }

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

        .main-tab-content {
            animation: fadeIn 0.3s ease;
        }

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

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.5rem;
            font-weight: 500;
        }

        .stat-value {
            font-family: 'Crimson Pro', serif;
            font-size: 2.5rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 0.25rem;
        }

        .stat-change {
            font-size: 0.85rem;
            color: var(--success);
            font-weight: 500;
        }

        .main-content {
            max-width: 1400px;
            margin: 0 auto;
            animation: fadeIn 1s ease-out 0.4s both;
        }

        @media (max-width: 1024px) {
            .main-content {
                max-width: 100%;
            }
        }

        /* Dashboard adapts naturally to screen height */
        #dashboardTabContent > div {
            margin-top: 1rem;
        }
        
        #dashboardTabContent h3 {
            font-size: 1rem;
            margin-bottom: 0.75rem;
        }

        /* Ultra-compact mode for large screens (27"+, 32") to fit everything */
        @media (min-width: 1920px) and (min-height: 1080px) {
            header {
                padding: 1rem 0 !important;
            }
            header h1 {
                font-size: 1.8rem !important;
                margin-bottom: 0.25rem !important;
            }
            header .subtitle {
                font-size: 0.85rem !important;
                margin-bottom: 0 !important;
            }
            header button.btn {
                padding: 0.5rem 1rem !important;
                font-size: 0.85rem !important;
            }
            /* Platform quick links more compact */
            div[style*="Accès rapide"] {
                padding: 0.75rem !important;
                margin-bottom: 1rem !important;
            }
            /* Treasury cards more compact */
            div[style*="Trésorerie par plateforme"] + div .dashboard {
                gap: 0.75rem !important;
            }
            div[style*="Trésorerie par plateforme"] + div .stat-card {
                padding: 1rem !important;
            }
            div[style*="Trésorerie par plateforme"] + div .stat-label {
                font-size: 0.8rem !important;
            }
            div[style*="Trésorerie par plateforme"] + div .stat-value {
                font-size: 1.5rem !important;
            }
            div[style*="Trésorerie par plateforme"] + div .stat-change {
                font-size: 0.75rem !important;
            }
            /* Main tabs more compact */
            .main-tab {
                padding: 0.75rem !important;
                font-size: 0.9rem !important;
            }
            /* Dashboard sections */
            #dashboardTabContent > div {
                margin-top: 0.75rem !important;
            }
            #dashboardTabContent h3 {
                font-size: 0.9rem !important;
                margin-bottom: 0.5rem !important;
            }
            #dashboardTabContent .dashboard {
                gap: 0.75rem !important;
                margin-bottom: 1rem !important;
            }
            #dashboardTabContent .stat-card {
                padding: 1rem !important;
            }
            #dashboardTabContent .stat-label {
                font-size: 0.8rem !important;
            }
            #dashboardTabContent .stat-value {
                font-size: 1.6rem !important;
            }
            #dashboardTabContent .stat-change {
                font-size: 0.75rem !important;
            }
        }

        /* Large screens (27"+) - Still compact to fit */
        @media (min-height: 1080px) and (min-width: 1920px) {
            #dashboardTabContent > div {
                margin-top: 1.25rem;
            }
            #dashboardTabContent h3 {
                font-size: 1.05rem;
                margin-bottom: 0.85rem;
            }
        }

        /* Laptop screens - More compact */
        @media (max-height: 900px) {
            .dashboard {
                gap: 1rem;
            }
            .stat-card {
                padding: 1.25rem;
            }
            .stat-label {
                font-size: 0.85rem;
            }
            .stat-value {
                font-size: 1.8rem;
            }
            .stat-change {
                font-size: 0.8rem;
            }
            #dashboardTabContent > div {
                margin-top: 1rem !important;
            }
            #dashboardTabContent h3 {
                font-size: 1rem !important;
                margin-bottom: 0.75rem !important;
            }
        }

        /* Small laptops - Very compact */
        @media (max-height: 768px) {
            .dashboard {
                gap: 0.75rem;
            }
            .stat-card {
                padding: 1rem;
            }
            .stat-label {
                font-size: 0.8rem;
            }
            .stat-value {
                font-size: 1.5rem;
            }
            .stat-change {
                font-size: 0.75rem;
            }
            #dashboardTabContent > div {
                margin-top: 0.75rem !important;
            }
            #dashboardTabContent h3 {
                font-size: 0.9rem !important;
                margin-bottom: 0.5rem !important;
            }
        }

        /* Mobile - Allow scroll */
        @media (max-width: 768px) {
            #dashboardTabContent {
                max-height: none;
            }
            
            /* Prevent horizontal scroll on mobile */
            header > div {
                flex-direction: column !important;
                align-items: stretch !important;
            }
            
            header > div > div:last-child {
                flex-wrap: wrap !important;
                gap: 0.5rem !important;
            }
            
            header button.btn {
                font-size: 0.8rem !important;
                padding: 0.5rem 0.75rem !important;
                white-space: nowrap;
            }
            
            .container {
                padding: 1rem !important;
            }
        }


        .card {
            background: var(--surface);
            border-radius: 16px;
            padding: 2rem;
            border: 1px solid var(--border);
            box-shadow: 0 4px 20px var(--shadow);
        }

        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid var(--border);
        }

        h2 {
            font-family: 'Crimson Pro', serif;
            font-size: 1.8rem;
            font-weight: 600;
            color: var(--primary);
        }

        .btn {
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: 8px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 0.95rem;
            font-family: 'DM Sans', sans-serif;
        }

        .btn-primary {
            background: var(--primary);
            color: white;
            box-shadow: 0 4px 12px rgba(26, 77, 46, 0.2);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26, 77, 46, 0.3);
        }

        .btn-secondary {
            background: var(--accent);
            color: white;
        }

        .btn-secondary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

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

        input, select {
            width: 100%;
            padding: 0.875rem;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 1rem;
            font-family: 'DM Sans', sans-serif;
            transition: all 0.3s ease;
            background: var(--bg);
        }

        input:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            background: white;
            box-shadow: 0 0 0 3px rgba(26, 77, 46, 0.1);
        }

        .investment-list {
            /* No max-height - show all projects */
        }

        .investment-item {
            padding: 1.5rem;
            margin-bottom: 1rem;
            border-radius: 12px;
            background: var(--surface);
            border: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            animation: slideIn 0.4s ease-out;
            position: relative;
        }
        
        .investment-item:hover {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
            transform: translateY(-2px);
        }

        .investment-item.payment-late {
            border-left: 4px solid var(--danger);
        }

        .investment-item.payment-partial {
            border-left: 4px solid var(--warning);
        }

        .investment-item.payment-ok {
            border-left: 4px solid var(--success);
        }

        .investment-item.compact .investment-details,
        .investment-item.compact .investment-image-large,
        .investment-item.compact .payment-actions,
        .investment-item.compact .payment-warning,
        .investment-item.compact .payment-info,
        .investment-item.compact .closure-btn {
            display: none;
        }

        .investment-item.compact {
            padding: 1rem 1.5rem;
        }

        .investment-item.compact .investment-header {
            margin-bottom: 0;
        }

        @keyframes slideIn {
            from { opacity: 0; transform: translateX(-20px); }
            to { opacity: 1; transform: translateX(0); }
        }

        .investment-item:hover {
            background: var(--bg);
            padding-left: 2rem;
        }

        .investment-item:last-child {
            border-bottom: none;
        }

        .investment-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 0.75rem;
        }

        .investment-platform {
            font-weight: 600;
            color: var(--primary);
            font-size: 1.1rem;
        }

        .investment-amount {
            font-family: 'Crimson Pro', serif;
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text);
        }

        .investment-details {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
            font-size: 0.9rem;
        }

        .detail-item {
            display: flex;
            flex-direction: column;
        }

        .detail-label {
            color: var(--text-light);
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.25rem;
        }

        .detail-value {
            font-weight: 500;
            color: var(--text);
        }

        .status-badge {
            display: inline-block;
            padding: 0.35rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .status-actif {
            background: rgba(82, 183, 136, 0.15);
            color: var(--success);
        }

        .status-retard {
            background: rgba(231, 111, 81, 0.15);
            color: var(--danger);
        }

        .status-termine {
            background: rgba(107, 107, 107, 0.15);
            color: var(--text-light);
        }

        .delete-btn {
            background: none;
            border: none;
            color: var(--danger);
            cursor: pointer;
            padding: 0.5rem;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            opacity: 0.6;
        }

        .delete-btn:hover {
            opacity: 1;
            transform: scale(1.2);
        }

        .payment-btn {
            padding: 0.5rem 1rem;
            border: 2px solid var(--success);
            background: white;
            color: var(--success);
            border-radius: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 0.75rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .payment-btn:hover:not(:disabled) {
            background: var(--success);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(82, 183, 136, 0.3);
        }

        .payment-btn:disabled {
            border-color: var(--border);
            color: var(--text-light);
            cursor: not-allowed;
            opacity: 0.5;
        }

        .payment-btn.partial {
            border-color: var(--warning);
            color: var(--warning);
        }

        .payment-btn.partial:hover:not(:disabled) {
            background: var(--warning);
            color: white;
            box-shadow: 0 4px 12px rgba(244, 162, 97, 0.3);
        }

        .payment-actions {
            display: flex;
            gap: 0.75rem;
            margin-top: 1rem;
            flex-wrap: wrap;
        }

        .payment-warning {
            background: rgba(231, 111, 81, 0.1);
            border-left: 3px solid var(--danger);
            padding: 0.75rem;
            border-radius: 4px;
            margin-top: 0.75rem;
            font-size: 0.9rem;
            color: var(--danger);
            font-weight: 500;
        }

        .payment-info {
            background: rgba(244, 162, 97, 0.1);
            border-left: 3px solid var(--warning);
            padding: 0.75rem;
            border-radius: 4px;
            margin-top: 0.75rem;
            font-size: 0.9rem;
            color: var(--warning);
            font-weight: 500;
        }

        .closure-btn {
            padding: 0.5rem 1rem;
            border: 2px solid var(--text-light);
            background: white;
            color: var(--text-light);
            border-radius: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 0.75rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .closure-btn:hover {
            background: var(--text-light);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(107, 107, 107, 0.3);
        }

        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(4px);
            z-index: 1000;
            animation: fadeIn 0.3s ease;
            justify-content: center;
            align-items: center;
        }

        .modal.active {
            display: flex;
        }

        .modal-content {
            background: var(--surface);
            padding: 2.5rem;
            border-radius: 20px;
            max-width: 600px;
            width: 90%;
            max-height: 90vh;
            overflow-y: auto;
            animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        }

        @keyframes slideUp {
            from { opacity: 0; transform: translateY(50px) scale(0.9); }
            to { opacity: 1; transform: translateY(0) scale(1); }
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
        }

        .close-btn {
            background: none;
            border: none;
            font-size: 2rem;
            cursor: pointer;
            color: var(--text-light);
            transition: all 0.3s ease;
            line-height: 1;
        }

        .close-btn:hover {
            color: var(--danger);
            transform: rotate(90deg);
        }

        .chart-placeholder {
            height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--bg) 0%, var(--surface) 100%);
            border-radius: 12px;
            border: 2px dashed var(--border);
            color: var(--text-light);
            font-style: italic;
        }

        .alert-list {
            list-style: none;
        }

        .alert-item {
            padding: 1rem;
            margin-bottom: 0.75rem;
            border-radius: 8px;
            border-left: 4px solid var(--warning);
            background: rgba(244, 162, 97, 0.1);
            animation: slideIn 0.4s ease-out;
        }

        .alert-item.danger {
            border-left-color: var(--danger);
            background: rgba(231, 111, 81, 0.1);
        }

        .alert-date {
            font-weight: 600;
            color: var(--text);
        }

        .empty-state {
            text-align: center;
            padding: 3rem 1rem;
            color: var(--text-light);
        }

        .empty-state svg {
            width: 80px;
            height: 80px;
            margin-bottom: 1rem;
            opacity: 0.3;
        }

        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        /* Login screen */
        .login-screen {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 10000;
        }

        .login-screen.hidden {
            display: none;
        }

        .login-box {
            background: var(--surface);
            padding: 3rem;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            max-width: 450px;
            width: 90%;
        }

        .login-box h1 {
            font-family: 'Crimson Pro', serif;
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 0.5rem;
            text-align: center;
        }

        .login-box .subtitle {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 2rem;
        }

        .login-input {
            width: 100%;
            padding: 1rem;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }

        .login-input:focus {
            outline: none;
            border-color: var(--primary);
        }

        .login-btn {
            width: 100%;
            padding: 1rem;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
        }

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

        .login-error {
            background: rgba(231, 111, 81, 0.1);
            color: var(--danger);
            padding: 0.75rem;
            border-radius: 8px;
            margin-bottom: 1rem;
            display: none;
        }

        .login-error.show {
            display: block;
        }