        /* --- BUTTONS --- */
        .btn {
            padding: 10px 20px;
            border-radius: var(--radius-md);
            border: none;
            font-weight: 600;
            cursor: pointer;
            font-size: 0.875rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.2s ease;
            outline: none;
            font-family: inherit;
            position: relative;
            overflow: hidden;
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }

        .btn:active::before {
            width: 300px;
            height: 300px;
        }

        .btn:focus {
            box-shadow: 0 0 0 3px rgba(0, 118, 86, 0.2);
        }

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

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 118, 86, 0.3);
        }

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

        .btn-outline {
            background: transparent;
            border-color: var(--border-dark);
            color: var(--text-main);
        }

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

        .btn-success {
            background: var(--success);
            color: white;
            border-color: var(--success);
        }

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

        .btn-sm {
            padding: 6px 12px;
            font-size: 0.8rem;
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 1rem;
        }

        .btn-icon {
            padding: 8px;
            width: 36px;
            height: 36px;
            justify-content: center;
        }
        
        /* Mobile button adjustments */
        @media (max-width: 767px) {
            .btn,
            button {
                min-height: 44px !important;
                min-width: 44px !important;
                padding: 12px 16px !important;
                font-size: 0.875rem !important;
                touch-action: manipulation !important;
                -webkit-tap-highlight-color: transparent !important;
            }
            
            .btn-sm {
                min-height: 40px !important;
                min-width: 40px !important;
                padding: 10px 14px !important;
                font-size: 0.8rem !important;
            }
            
            .btn-lg {
                min-height: 52px !important;
                padding: 14px 24px !important;
                font-size: 1rem !important;
            }
            
            .btn-icon,
            .icon-btn {
                min-width: 44px !important;
                min-height: 44px !important;
                width: 44px !important;
                height: 44px !important;
                padding: 0 !important;
            }
            
            /* Отключаем hover на touch */
            .btn:hover {
                transform: none !important;
            }
            
            /* Активное состояние для touch */
            .btn:active {
                transform: scale(0.98) !important;
            }
        }
